one pair of leafits, each bearing about two pairs of slanting leaflets hairy beneath; the heads of the flowers globose, and the pod covered with stiff bristly hairs; propagated by cuttings in sandy peat. Mimosa strigosa, Persoon.

115. Magdalena Acacia (A. Magdalena, Bertolini). An ornamental bark-stove tree of St. Martha: thornless; leafits bearing twenty-five pairs of line-like, blunt leaflets; leaf-stalk hairy, glandless; pod two inches long, the valves thick and furrowed on the outside; propagated by seeds or cuttings in sandy peat.-D. C. Sp. 70.

116. Pilose Acacia (A. pilosa, Bertolini). An ornamental, evergreen, bark-stove tree, thirty feet high, from Jamaica in 1800: thorns almost axillary; leaf-scales lance

112. Green-branched Acacia (A. viridiramis, Burchell). An ornamental, evergreen, greenhouse shrub, four feet high, from the Cape of Good Hope in 1816: branches green, wavy; buds white with wool; leaf-scales bent back; leafits with six to eight pairs of small, oval, approximating leaflets; flowers yellow; propagated by cuttings in sandy peat.

2. Every leafit bearing ten or more pairs of leaflets. 113. Two-winged Acacia (A. diptera, Willdenow). An ornamental, evergreen, bark-stove tree, of South America, having very short, awl-shaped thorns at the base of the leaves; leafits bearing twenty to twenty-four pairs of linelike, blunt, smooth leaflets; propagated by cuttings in sandy peat.-D. C. Sp. 81.

114. Hoary Acacia (A. incana, Sprengel). An ornamental, evergreen, bark-stove shrub from Brazil, having its branches clothed with flocky down; each leafit having about twenty pairs of oblong, blunt, ribless leaflets, hoary, and covered with prominent dots beneath; propagated by cuttings in sandy peat.-Spreng. Syst. 3, p. 137.

leaf-stalk very short, glandless; branches covered with long hair-like thorns, and leaf-scales present at the same time; propagated by cuttings in sandy peat.-D. C. Sp. 71.

117. Salt-marsh Acacia (A. Salinarum, De Candolle). An ornamental, evergreen, bark-stove tree, from the saltmarshes of Jamaica: leafits with nineteen to twenty pairs of line-like, blunt leaflets; a gland at the top of the leaf-stalk, and one between each pair of leaflets; spikes single; stamens ten; seed-organ hairy; propagated by cuttings in sandy peat. Mimosa salinarum, Vahl.-D. C. Sp. 82.

118. Sillo's Acacia (A. Selloi, Sprengel). An ornamental, evergreen, bark-stove tree of Brazil: thornless; leaves without footstalks, each leafit with twelve pairs of line-like, shining leaflets; pods straight, lance-shaped, with thick margins; propagated by cuttings in sandy peat. An orna

119. Setose Acacia (A. setosa, Sprengel). mental, evergreen, bark-stove shrub of Brazil, with hairy branches: each leafit having many pairs of line-like leaflets, themselves fringed with stiff hairs on the margin; propagated by cuttings in sandy peat.-Spreng. Syst. 3, p. 137.

1. Leaves with less than ten pairs of leafits. 120. Acapulco Acacia (A. Acapulcensis, Kunth). An ornamental, evergreen, bark-stove shrub from Acapulco: leaves with eight to nine pairs of leafits, every leafit with thirty-five to forty-five pairs of oblong, line-like, smooth leaflets; leaf-stalks with glands; spikes cylindrical; flowers

white; stamens numerous; propagated by cuttings in sandy peat.-Kunth, Mim., 78, T. 24.-D. C. Sp. 96.

121. Astringent Acacia (A. adstringens, Von Martius). An ornamental, evergreen, greenhouse shrub, two or three feet high, from Brazil: leaves with four to five pairs of leafits, every leafit having four to five pairs of broad, egg-oblong, greyish leaflets; leaf-stalks and young branches covered with

a chesnut-coloured cotton; propagated by cuttings in sandy peat.-Mart. Lin. 5, p. 41.

122. Sand Acacia (A. arenosa, Willdenow). An ornamental bark-stove shrub, ten feet high, from the Caraccas in 1818 leaves with six pairs of leafits, each leafit bearing sixteen pairs of line-like, acute, fringed leaflets; not glandless; spikes thread-like, in pairs; propagated by cuttings in sandy peat.-D. C. Sp. 91.

An

gland between each of the pairs of leaflets; propagated by cuttings in sandy peat. Mimosa nigricans of Vahl, but not of Labillardiere.-D. C. Sp. 87.

134. Beak-podded Acacia (A. rostrata, Humboldt). An ornamental, evergreen, bark-stove tree, from South America: leaves with six pairs of leafits, each leafit bearing many pairs of line-like, smooth leaflets; spikes axillary; propagated by cuttings in sandy peat. Mimosa ignava, Kunth.

124. Tailed Acacia (A. caudata, De Candolle). An ornamental, evergreen, bark-stove tree from Cayenne: leaves with two to three pairs of leafits, each leafit supporting seven to eight pairs of line-like, oblong, very blunt, smooth leaflets; leaf-stalks glandless; spikes in pairs; stamens ten; petals five; propagated by cuttings in sandy peat. Mimosa caudata, Vahl.-D. C. Sp. 83.

125. Circle-seeded Acacia (A. cyclosperma, De Candolle). An ornamental, evergreen, greenhouse tree, a native of New Caledonia: leaves with three pairs of leafits, each leafit bearing three to four pairs of egg-oblong smooth leaflets; a gland between each of the pairs of leafits, and between each of the pairs of leaflets; spikes single; seeds circular and flat; propagated by cuttings in sandy peat.-D. C. Sp. 84.

126. Two-spiked Acacia (A. distachya, Mocino and Sessé). An ornamental, evergreen, bark-stove tree from New Spain leaves with four pairs of leafits, each leafit with three to four pairs of oval, blunt, and rather hairy leaflets; spikes in pairs; propagated by cuttings in sandy peat.

127. Bush Acacia (A. Dumetorum, De Candolle). A native of Brazil: the stem with few prickles, branches furrowed, hairy; leaves two, with two leafits, each leafit bearing many pairs of minute leaflets, which are glandularly dotted beneath. Mimosa Dumetorum, St. Hilaire.

128. Shining Acacia (A. fulgens, Labillardiere). An ornamental, evergreen, greenhouse shrub, twelve feet high, from New Caledonia: leaves with two to three pairs of leafits, each leafit bearing three pairs of broad, elliptic, blunt leaflets; propagated by cuttings in sandy peat.-Lab. Cat., p. 68, T. 67.

129. Granular Acacia (A. granulosa, Labillardiere). An ornamental greenhouse shrub, from New Caledonia: leaves with five pairs of leafits, each leafit bearing twelve pairs of alternate, obliquely-egg-oblong, blunt leaflets; spikes single; propagated by cuttings in sandy peat.-Lab. Cat., p. 67,

T. 66.

130. Thibaud's Acacia (A. Thibaudiana, De Candolle). An ornamental, evergreen, bark-stove tree, from South America leaves with four pairs of leafits, each leafit with seven to nine pairs of egg-oblong and somewhat rhomboid leaflets; propagated by cuttings in sandy peat.-D. C. Sp. 86.

131. Lophanthan Acacia (A. lophanthoïdes, De Candolle). An ornamental, evergreen. bark-stove tree, from Jamaica in 1818: leaves with eight to nine pairs of leafits, each leafit with twelve pairs of oval-oblong, blunt leaflets; no glands; flowers in clusters, usually in pairs, short and axillary; calyx smooth; propagated by cuttings in sandy peat.

132. Naked-flowered Acacia (A. nudiflora, Willdenow). An ornamental, evergreen, bark-stove tree, twenty feet high, from Porto Rico: leaves downy beneath, with four to six pairs of leafits, each leafit bearing twelve to fifteen pairs of elliptic, blunt leaflets, with a depressed gland between every pair of the leafits.-D. C. Sp. 88.

133. Rohr's Acacia (A. Rohriana, De Candolle). An ornamental, evergreen, bark-stove tree, thirty feet high, from South America in 1823: leaves with four pairs of leafits, each leafit with about ten or eleven pairs of small leaflets, beset with yellow, velvet-like pile on the leaf-ribs, with a

2. Leaves with less or more than ten pairs of leafits. 137. Crest-flowered Acacia (A. lophantha, Willdenow). An ornamental evergreen, greenhouse shrub, eight feet high, from New Holland in 1803: leaves with eight to ten pairs of leafits, each leafit with twenty-five to thirty pairs of line-like, bluntish leaflets; leaf-stalks not glandless; calyx downy; flowers from May to July; propagated by cuttings in sandy peat. Mimosa distachya, Ventenat, but not of Cavanilles; M. elegans, Andrews. Probably the A. insignis of Hoffmansegg is not distinct from the present species.

138. Smooth-spiked Acacia (A. psylostachya, De Candolle). An ornamental, evergreen, bark-stove tree, from French Guiana: leaves with seven to ten pairs of leafits, every leafit with fifteen to twenty pairs of oblong, line-like, blunt, smooth leaflets; leaf-stalks not glandless; spikes single; flowers white, small, and hairy; propagated by cuttings in sandy peat-D. C. Sp. 95..

3. Leaves with ten or more pairs of leafits. 139. Aspidian Acacia (A. aspidioides, Meyer). A tree, forty or fifty feet high, found in moist places in the island of Arowabisch, in Guiana: leaves with fifteen to eighteen pairs of leafits, every leafit having many pairs of line-like, smooth leaflets, each bearing on its under surface at the base a transverse gland; spikes cylindrical, in terminal clusters.-D. C. Sp. 102.

140. Whitened Acacia (A. dealbata, Link). An ornamental, evergreen, bark-stove tree, native country unknown : leaves with fifteen pairs of leafits, every leafit bearing many pairs of minute, equal, hairy leaflets, with a perforated gland between one of the pairs of leafits; spikes in clusters at the sides; propagated by cuttings in sandy peat.-D. C. Sp. 103.

141. Elephant-root Acacia (A. elephanthorhiza, Burchell). A greenhouse tree, from the Cape of Good Hope in 1818: leaves with ten to twelve pairs of leafits, every leafit with twenty-five pairs of line-like, smooth leaflets; leaf-stalks without glands; spikes cylindrical, single; petals sixteen ; stamens ten; propagated by cuttings in sandy peat. Probably a species of Prosopis.-D. C. Sp. 97.

142. Guiana Acacia (A. Guianensis, Willdenow). An ornamental, evergreen, bark-stove tree, forty feet high, from Guiana and Cayenne in 1803 leaves with ten pairs of leafits, every leafit having ten pairs of elliptic, blunt, smooth leaflets; leaf-stalk rather velvety, not glandless; spikes thread-like, single; flowers white, small and smooth. Mimosa Guianensis, Aublet.-D. C. Sp. 101.

143. Long-podded Acacia (A. macroloba, Willdenow). A tree, forty or fifty feet high, from Para in Brazil: leaves with sixteen pairs of leafits, every leafit with many pairs of line-like, sickle-shaped leaflets, angular at the base; leafstalks with two hairy lines on the upper side.

144. Thorny Acacia (A. muricata, Willdenow). A

tree of the West Indies: leaves with five pairs of leafits, each leafit with twelve to fifteen pairs of egg-oblong, abruptly blunt leaflets, with a depressed gland between each of the pairs of leafits; spikes cylindrical; flowers white; branches warty. Mimosa muricata, Linnæus.-D. C. Sp. 89.

145. Fairest Acacia (A. pulcherrima, Willdenow). An ornamental, evergreen, bark-stove tree, forty to fifty feet high, from Para, in Brazil, in 1823: leaves with twelve pairs of leafits, every leafit bearing numerous pairs of oblong, line

like, blunt leaflets, hairy beneath; flowers hairy, five-cleft; propagated by cuttings in sandy peat.-D. C. Sp. 99.

146. Hard-wooded Acacia (A. scleroxyla, Tussac). A tree, sixty feet high, from the French West India islands in 1822 leaves with ten to fifteen pairs of leafits, every leafit with an indefinite number of leaflets, with a pitchershaped gland below the lower pairs of leafits; spikes threadlike, single; branches warty.-Tuss. Fl. Ant., T. 21.

1. Leaves with less than ten pairs of leafits. 147. Adiantum-like Acacia (A. adiantoides, Sprengel). A tree of Brazil: prickles, short, few, straight; leaves with four pairs of leafits, every leafit bearing about eight pairs of alternate, blunt, shining leaflets; spikes axillary, and without foot-stalks. Spreng. Syst. 3, p. 146.

148. White-leaved Acacia (A. albida, Delile). An ornamental, greenhouse tree, twenty feet high, from Upper Egypt: prickles at the base of the leaves, straight; leaves with three to four pairs of leafits, every leafit with nine to ten pairs of oblong, line-like, blunt, smooth leaflets; a gland without a foot-stalk, between each of the pairs of leafits; spikes cylindrical; propagated by cuttings in sandy peat.-D. C. Sp. 118. 149. Asak Acacia (A. Asak, Willdenow). An ornamental, evergreen, bark-stove tree, from Arabia Felix, where it is called Asak: thorns at the base of the leaves, three together (?); leaves with three pairs of leafits, every leafit having five pairs of leaflets; a gland, on a foot-stalk, between the lower pair of leaflets; propagated by cuttings in sandy peat. Mimosa Asak, Forskal.-D. C. 125.

150. Irregular-thorned Acacia (A. ataxacantha, De Candolle). An ornamental, evergreen, hothouse shrub, from the banks of the rivers Gambia and Senegal: prickles hooked, and scattered in an irregular manner along the branches and leaf-stalks; leaves with six to eight pairs of leafits, every leafit having twenty to thirty pairs of line-like, fringed leaflets; leaf-stalks furnished with glands; spikes in pairs, cylindrical; twenty to twenty-five stamens; propagated by cuttings in sandy peat.-D. C. Sp. 115.

151. Caducous Acacia (4.2 caduca, Humboldt). A tree of Peru: prickles scattered; leaves with four to six pairs of leafits, every leafit having five to ten pairs of slanting, oval, blunt leaflets, hairy beneath; leaf-stalks without any gland; spikes axillary; eight to ten stamens.

152. Ox-horn Acacia, or Cuckold Tree (A.? cornigera, Willdenow). An ornamental, evergreen, bark-stove tree, ten to fifteen feet high, from South America in 1692: prickles or thorns at the base of the leaves, and joined together at the base, so as to resemble the horns of an ox; leaves with six pairs of leafits, every leafit having about twenty pairs of smooth leaflets; spikes cylindrical; flowers pale yellow; propagated by cuttings in sandy peat. Mimosa cornigera, Linnæus.-D. C. Sp. 122.

Var. a. American (A. Americana, De Candolle). A native of Mexico, Cuba, and in the woods of Carthagena. Spines brown.

Var. b. Indian (A. Indica, De Candolle). A native of the East Indies. Spines yellow.-Seba. Thes., i. T. 70, f. 13.

153. Dalea-like Acacia (A. Dalea, Desvaux). An ornamental, evergreen tree, from the East Indies: thorns straight, single, at the base of the leaves, hairy; leaves with two pairs of leafits, hairy; spikes three together on short stalks; flowers rose-coloured; propagated by cuttings in sandy peat. 154. Rusty Acacia (A. ferruginea, De Candolle). An ornamental, evergreen, bark-stove tree, twenty feet high, from Coromandel in 1818, resembling A. sundra and A. Catechu thorns at the base of the leaves, conical; leaves with three to four pairs of leafits, every leafit with ten to twelve pairs of line-like, smooth leaflets; a large depressed

:

gland on the foot-stalk; spikes cylindrical, in a panicle; pod oval, one to two-seeded; propagated by cuttings in sandy peat. Mimosa ferruginea, Roxburgh.-D. C. Sp. 105.

155. Hostile Acacia (A. hostilis, Von Martius). An ornamental, evergreen, hothouse shrub, from Brazil: prickles straight, scattered; leaves with four to six pairs of leafits, each leafit having twenty pairs of line-like leaflets; leaves covered with clammy down; spikes single; pod line-like, oblong, two to three-seeded; propagated by cuttings in sandy peat.-Mart. Reis Bras. ex Schlecht.

156. Plunderer's Acacia (A. Latronum, Willdenow). An ornamental, evergreen, hothouse shrub, six feet high, from the East Indies in 1820: thorns milk-coloured, straight, at the base of the leaves, in pairs which are joined together at the base; leaves with four pairs of leafits, every leafit having many pairs of small leaflets; spikes generally in pairs, axillary; flowers white; pod half-moon shaped; propagated by cuttings in sandy peat. Mimosa Latronum, Linnæus.

157. Modest Acacia (A. modesta, Wallich). An ornamental, evergreen, hothouse shrub, ten feet high, from Hindostan: thorns at the base of the leaves, in pairs, awl-shaped; leaves with two or three pairs of leafits, every leafit having four pairs of oblong, blunt leaflets; leaf-stalks hairy, with a gland in the middle; spikes nodding, usually single, terminal, and axillary; flowers, in April, white, fragrant; pod six-seeded; propagated by cuttings in sandy peat.-Wall. Pl. Rar. Asiat., ii. 27, T. 130.

158. One-spined Acacia (A. monacantha, Willdenow). An ornamental, evergreen, bark-stove tree, twenty feet high, from Brazil in 1818: prickles at the base of the leaves, single, bent back; leaves commonly with eight pairs of leafits, every leafit having seventeen to twenty pairs of oblong leaflets; spikes cylindrical, panicled; propagated by cuttings in sandy peat.-D. C. Sp. 119.

159. Prosopoian Acacia (A. prosopoides, Mocino and Sessé). An ornamental, evergreen, bark-stove tree, from New Spain: prickles few, scattered, hooked at the tip; leaves with two or three pairs of leafits, every leafit having two to three pairs of oval, oblong, blunt, smooth leaflets; spikes generally in pairs; corolla reddish, five-cleft; propagated by cuttings in sandy peat.-D. C. Sp. 127.

An or

160. Senegal Acacia (A. Senegal, Willdenow). namental, evergreen, bark-stove tree, twenty feet high, from Arabia and the interior of Africa in 1823: branches white, smooth; prickles at the base of the leaves, straight, short, sometimes none; leaves with five to eight pairs of leafits, every leafit with fifteen to eighteen pairs of oblong, line-like, blunt, smooth leaflets; a gland, without a foot-stalk, between each of the pairs of leafits; spikes single, slender, axillary; flowers white, small, distant; propagated by cuttings in sandy peat. Mimosa Senegal, Linnæus.-D. C. Sp. 117.

161. Spini's Acacia (A. Spini, Balbis). An ornamental, evergreen, bark-stove tree, fifteen feet high, native country unknown prickles at the base of the leaves, single, hooked; leaves with three to four pairs of leafits, every leafit having three to five pairs of elliptic leaflets; spikes cylindrical, single, or in pairs; flowers greenish yellow; propagated by cuttings in sandy peat.

162. Subtile-leaved Acacia (A. subtilifolia, Humboldt). A tree of New Granada: thorns at the base of the leaves, almost upright; leaves with five to ten pairs of leafits, every

1. Leaves with less than ten pairs of leafits. 173. Whitish Acacia (A. albicans, Kunth). A tree from Mexico, on the sea-shore near Campeachy: thorns in pairs; leaves with eight to nine pairs of leafits, every leafit having nineteen to thirty-two pairs of leaflets; flowers white, with numerous stamens, in heads two to five, aggregate, rising in axillary clusters.-Kunth. Mim. 87, T. 27.—D. C. Sp. 111. 174. Arabian Acacia, or Gum Thur Tree (A. Arabica, Willdenow). An ornamental, evergreen, bark-stove tree, thirty to forty feet high, from the East Indies, Senegal, Egypt, and Arabia in 1820: thorns in pairs; branches and leaf-stalks downy; leaves with four to six pairs of leafits, every leafit having ten to twenty pairs of oblong, line-like leaflets; flowers yellow, on foot-stalks, usually three heads together; pod resembling a string of beads; propagated by cuttings in sandy peat. Mimosa Arabica, Lamarck; A. Nilotica, Delile.-D. C. Sp. 135.

175. Burmann's Acacia (A. Burmanniana, De Candolle). An ornamental, evergreen, bark-stove shrub, six feet high, from the East Indies in 1818: thorns in pairs, smooth; leaves with six pairs of leafits, every leafit having fifteen to twenty pairs of leaflets; leaf-stalks glandular and downy; heads of flowers single; propagated by cuttings in sandy peat. Mimosa tortuosa, Burmann.-D. C. Sp. 123.

Var. a. Flower-stalks three together, axillary. Mimosa casia, Burmann, but not of Linnæus.

176. Ivory-thorned Acacia (A. eburnea, Willdenow). An ornamental, evergreen, bark-stove shrub, six feet high, from the East Indies in 1792: thorns white, one to two inches long, in pairs, united at the base, smooth; the leaves, with four to eight pairs of leafits, each leafit having six to twelve pairs of oblong, small leaflets; a gland on the leafstalk between the lower pair of leafits; flowers yellow, with numerous stamens, crowded; pod seeded; propagated by cuttings in sandy peat.-D. C. Sp. 131.

177. Farnesian Acacia (A. Farnesiana, Willdenow). An ornamental, evergreen, bark-stove shrub, eight feet high, from St. Domingo: thorns twin; leaves with five to eight pairs of leafits, every leafit having from fifteen to twenty pairs of leaflets; glands on the leaf-stalks; and usually the heads are in pairs; propagated by cuttings in sandy peat. Mimosa Farnesiana, Linnæus; Mimosa scorpioides, Forskal.-D. C. Sp. 138.

Var. a. A. pedunculata, Willdenow. A native of Java and Timor, distinguished by the flower-stalks being a little longer.

Var. b. A. curvispina, De Candolle thorns somewhat bent inwards; leaves with two pairs of leafits, bearing eggoblong leaflets; probably a distinct species. A. Farnesiana, Hort. Rip.

178. Young-branched Acacia (A. hebeclada, De Candolle). An ornamental, evergreen, greenhouse shrub, six feet high, from the South of Africa in 1816: thorns in pairs; branches, leaf-stalks, and flower-stalks downy, and somewhat hairy; leaves with three to five pairs of leafits, every leafit having ten pairs of leaflets; heads of flowers scentless, on foot-stalks, two to three together; propagated by cuttings in sandy peat. Acacia stolonifera, Burchell. 179. Horrid Acacia (A. horrida, Willdenow). An ornamental, evergreen, bark-stove shrub, six feet high, from Africa and Arabia in 1823: thorns in pairs; leaves with two to three pairs of leafits, each leafit having nine to twelve pairs of oblong, blunt leaflets; two glands on the rib; flowers yellow, with numerous stamens; propagated by cuttings in sandy peat. Mimosa horrida, Linnæus; M. leucacantha, Jacquin; M. eburnea, Lamarck; M. Orfota, Forskal; M. Capensis, Burmann, Plunkenet; Acacia Capensis, Burchell.-D. C. Sp. 130.

Var. a., one to three glands on the leaf-stalks, either beneath or between the pairs of leafits.

180. Moorish Acacia (A. Mauroceana, De Candolle). An ornamental, evergreen, greenhouse shrub, four to six feet high, from Morocco in 1823: thorns in pairs; branches, leaf-stalk, and flower-stalks downy; leaves with three to eight pairs of leafits, every leafit with 10 to 20 pairs of oblong, line-like, leaflets; flowers white, in single heads, or two to three together; propagated by cuttings in sandy peat. Mimosa Mauroceana, Desfontaines.-D. C. Sp. 137. 181. Shining-leaved Acacia (A. nitida, Willdenow). A tree from the East Indies: thorns in pairs; leaves with two pairs of leafits, every leafit having five pairs of oblong leaflets, shining on their upper surface; a gland between each of the pairs of leafits: leaf-stalks downy. Mimosa nitida, Vahl. 182. Small-leaved Acacia (A. parvifolia, Willdenow). A tree from the East Indies, twenty feet high: thorns smooth; leaves with five to nine pairs of leafits, every leafit having ten to twenty pairs of small line-like leaflets; heads of flowers white and green, scentless, single. Mimosa parvifolia, Swartz; M. Antillarum, Poiret; M. Mangensis, Jacquin.-D. C. Sp. 139.

183. Sejal Acacia (A. Seyal, Delile). An ornamental, evergreen, bark-stove shrub, from Egypt: thorns in pairs; leaves with two pairs of leafits, each bearing 8 to 12 pairs of oblong, line-like, smooth leaflets; pod flattish, line-like, sickle-like, acute, smooth; propagated by cuttings in sandy peat. Mimosa Sejal, Forskal.-D. C. Sp. 129.

184. Twisted Acacia (A. tortuosa, Willdenow). An ornamental, evergreen, bark-stove tree, six feet high, from Jamaica and the island of St. Thomas in 1824: thorns half an inch long, in pairs, united at the base, downy; leaves with two to six pairs of leaflets, every leafit having twelve to sixteen pairs of leaflets; flowers, in single heads, yellow; pods with fleshy, juicy valves; propagated by cuttings in sandy peat. Mimosa tortuosa, Linnæus, but not of Burmann.

185. True, or Egyptian Thorn Acacia (A. vera, Willdenow). An ornamental, evergreen, bark-stove tree, twenty feet high, from Senegal and Egypt in 1596: thorns red, in pairs; branches and leaves smooth; leaves with two pairs of leafits, each leafit having eight to ten pairs of oblong, linelike leaflets; a gland between each pair of leaflets; flowers, yellow, generally in twin heads; pods resembling a string of beads; propagated by cuttings in sandy peat. Mimosa Nilotica, Linnæus; Gommier rouge, Adanson.

2. Leaves with less or more than ten pairs of leafits.

An orna

186. White Acacia (A. alba, Willdenow). mental, evergreen, bark-stove tree, twenty feet high, from the East Indies: thorns at the base of the leaves; leaves with seven to ten pairs of leafits, every leafit having sixteen to twenty pairs of leaflets; heads of flowers panicled; propagated by cuttings in sandy peat. Mimosa alba, Roxburgh.

187. Twisted-spined Acacia (A. cochliacantha, Humboldt). A shrub, eight feet high, from Peru, near Guayaquil: thorns in pairs; leaves with nine to ten pairs of leafits, every leafit having nineteen to twenty-four pairs of line-like, very minute, fringed leaflets; four glands on the stems of the leaves; flowers white, with numerous stamens, in axillary heads.-D. C. Sp. 143.

188. Bloody-wooded Acacia (A. Hæmatoxylon, Willdenow). An ornamental, evergreen, greenhouse shrub, from the Cape of Good Hope in 1816: thorns in pairs; branchlets, leaves, and flower-stalks covered with hairy, velvety down; leaves with eight to sixteen pairs of leafits, each leafit having eighteen to twenty-four pairs of leaflets, which are so very minute, and so much crowded, as to appear joined together; propagated by cuttings in sandy peat. A. atomiphylla, Burchell.-D. C. Sp. 144.

189. White-juiced Acacia (A. leucophlæa, Roxburgh). A tree from the dry mountains of Coromandel: thorns in pairs; leaves with eight to twelve pairs of leafits, every leafit