BRITISH HEPATICJE. 45 



Plants with the habit of Ghiloscyphus, procumbent, sparingly 

 radiculose ; leaves succubous, horizontal, entire or emarginate ; 

 amphigastria triangular, adnate with the adjacent leaves. 



Derivation — a-dxHos, a little sac; and ymri, female (pistil). 



Obs. — Geocalyx, N. ab E., seems to bear the same relation to Saccogyna, tbat the 

 species of Jungermannia with entire leaves, bear to those in which the leaves are bi- 

 lobed ; and I cannot consider that a valid generic character. Moreov.er (as Dr. Lind- 

 berg points out), the leaves of S. australis and S. jugata (Mitten, in Fl. Nov. Zealand, 

 and Fl. Vitiensis) are dentate. 



From the other Geoccdycece with saccate inferior fructification, Calypogeia, Raddi 

 (haud N. ab E.) is distinguished from Saccogyna by the succubous leaves, and the spiral 

 arrangement of the valves of the capsule ; whilst in Kantia, Gr. & B., the leaves are 

 incubous, and the valves of the capsule spirally twisted. 



Much confusion has arisen from N. ah Es. (Leberm. Eur. ii. p. 388, &o.) having 

 transposed the nomenclature of Raddi, an error perpetuated in the Synop. Hepat., 

 pp. 196, 197, and by succeeding authors. 



Calypogeia, Eaddi, Jung. Etrusca (1820), p. 43, contains two sections, A. exam- 

 phigastriata=(C. ericetorum, et O.flagellifera, Tab. 6, f. 1, 2), and B. amphigastriata 

 = C. fissa (Tab. 6, £ 3)=Mnium Trichomanis fade, foliis bifidis. Dill. Hist. Muse. 

 t. 31, f. 6. Jung, trichomanis, Eng. Bot. t. 1875. 



It is difficult, therefore, to understand why N. ab E. should have named the first 

 section Gonglyanthus, and restricted Calypogeia to /.' trichomanis and its allies, the 

 more so, since Gray and Bennett had in 1821 named the latter Kantia. 



1. Saccogyna viticulosa, Bumort. 



Pl. IX. Fig. 28. 



Jungermannia viticulosa, L. Sp. PI. II. p. 1597, n. 21 Eng. Bot. 1 ed. t. 2513 ; 

 Lindenb. Hep. Eur. p. 28, n. 19 ; Hook. Brit. Jung. t. Ix. ; Fl. Britt. v. i. p. 117, 

 n. 46 ; Mackay, Fl. Hibern. ii. p. 53, n. 51 ; Muse. Brit. 2 ed. p. 235, n. 51. 



Saccogyna viticulosa, Dum. Comm. Bot. p. 113 (1822) ; Syll. Jung. p. 74, t. 2, 

 f. 13 ; N. ab E. Leberm. Eur. ii. p. 389, iii. p. 571 ; G. L. N. Syn. Hep. p. 194 ; 

 Gott. & Bab. Hep. Eur. Ex. n. 166. 



' Jungermannia terrestris, viticulis longis, Michel. Nov. Gen. p. 8, t. 5, f. 4 (haud 

 Dill. Muse. t. 69, f. 7). .Ill 



Sykoria viticulosa, Oorda, in Sturm. Fl. Germ. ii. fasc. 19, 20, p. 41, t. 11. 



Hab. Shady rocks in woods, and heaths in sub-alpine districts. Fructification 

 exceedingly rare. First discovered by Miss Hulchins near Bantry, 1813. Kinnordy ' 

 Angus, young fr. April 1813, C. Li/ell, Esq. ! Near Bangor, Mar. 1835, fr. W. Wilson I 

 Galway, J Nowell 1 Loch Bray, co. Wicklow, Dr. Moore 1 GlengaroflFe, Sept. 1868 ! 

 Cromagloun and other places near Killarney, June 1861 ! Near Barmouth, N. Wales, 

 Oct 1867' DulesGate,Todmorden,J-. i\^0M;effi.' Tunbridge Wells, ff. i?«mW Banks 

 of Lune, near Orton, July 1859 ! O'Sullivan's Cascade, Killarney, fr. 22 July, 1873, 

 Dr. Lindherg ! Neath, S. Wales, 1872 ! 



Fronds attached to tufts of Sphagnum, or the surfaces of rocks, 

 forming shallow, depressed patches, several mches m circum- 

 ference. 



