APPENDIX. ON THE HEPATICS AND LICHENS OF LIVERPOOL AND ITS VICINITY. BY FREDERICK P. MARRAT. READ BEFORE THE SOCIETY ON THE 6TH OF MARCH, 1860. LIVERWORTS Occupy an intermediate position between Mosses and Lichens. The quadrivalve capsule common among these plants resembles that of the genus Andrea, which consists of Alpine mosses. The Jungermannia juniperina, having falcate leaves, is scarcely distinguishable by the unassisted eye from Andræa nivalis. The roundish antheridea connect them with the sphagna. Folding leaves, so often met with among the Hepatics, are faintly represented by the various species of Fissidens. The foliose liverworts are nerveless, if we do not consider the pellucid appearance in the centre of the leaf of Jungermannia albicans to be analogous to that organ. The elastic spiral elaters found in the capsules of Jungermannia, which serve the purpose of distributing the spores, form highly curious and very interesting microscopic objects. The Riccia resembles Lichens in its mode of growth, and in the situation of its fruit on the surface of the frond. HEPATICE. A. Leaf and stem joined together. ORDER I.-ANTHOCEROTEE. Genus I.-ANTHOCEROS. A. PUNCTATUS. (Dotted A.) E. B., T. 1537, By the side of a long lane leading from Wallasey to Leasowe.-W. H. ORDER II.-MARCHANTIACEÆ. Genus II.-MARCHANTIA. M. POLYMORPHA. Linn. (Many shaped M.) E. B., T. 219. F. CONICA. Genus III.-FEGATELLA. Linn. (Conical F.) Linn. Spec. Plant. 1604. Wet rocks, bridges, &c. Fruiting on the bridge of the railway betwixt R. HEMISPHERICA. Genus IV.-REBOUILLIA. Linn. (Hemispherical R.) E. B., T. 503. On the sandhills from Crosby to Southport generally plentiful. Fruiting in May and June.-F. P. M. ORDER III-RICCIEE. Genus V.-RICCIA. R. CHRYSTALLINA. Linn. (Chrystalline R.) Smith's E.B., T. 2546. Botanic Gardens.-W. H. and F. P. M. R. FLUITANS. Linn. (The Floating Riccia.) E. B., T. 252. In a pit near Halewood.-W. H. In a pond near Knowsley.- |