224 TASMANIAN HEPATlCiE. 



teeth are more spinous ; the perianth, too, is of a 

 different form, and there is no dorsal wing. 



Tasmania — Hooker, Gunn, Oldfield. Mount Wel- 

 lington — R. A. B. 



8. P. DELTOiDEA, Liudhg. Vai'iable in size and form ; 



stems erect ; branches somewhat fascicled, 2-4in. high. 

 Leaves vertical, closely imbricate, subseciind, rhomboid- 

 obovate; dorsal margin quite entire ; ventral arched 

 and the apex toothed. Perianth terminal, ovate, com- 

 pressed ; mouth toothed and ciliate. Syn. Hep. 55. 



-P. gregaria — Hook, f and Tayl., Lond. Jour. Bot., 

 1844, 564. 



Tasmania — Labillardiere. A very fine large plant. 



9. P. ANNOTiNA, Lindbg. Fl. N.Z., ii,, 131. Stems stout, 



erect, 3-5in. high, dichotomous. Leaves vei'y closely 

 imbricate, dimidiate-ovate, convex, obtuse, toothed and 

 ciliate ; ventral bases conniving and forming a crest. 

 Perianth terminal and lateral, oblong, with a narrow- 

 toothed wing ; mouth truncate, compressed, fimbriate. 

 Syn. Hep. 41, 643. 



./. adiantioides, Hook. Muse. Exot. t. 90. (PI. v., 

 f. 1,2, 3, 4.) 



Tasmania. (New Zealand.) 



Ventral margin and apex only spinous. 



10. P. Lyallii, Mitten in Fl. N.Z., ii., 132. Stems erect, 



dichotomously and fastigiately branched, slender, 

 flexuous, 2-3in. high. Leaves brown-green, rather 

 remote and rigid, broadly ovate or semi-cordate ; dorsal 

 margin quite entire ; ventral and apex spinous j involu- 

 cral similar, more toothed. Perianth narrow, oblong- 

 clavate, compressed ; tips rounded, toothed. (PI. v.) 



St. Patrick's River — Gunn. Gullies Mt. Wellington 

 ■— R. A. B. (New Zealand.) 



The Tasmanian specimens are a little larger than 

 those from New Zealand, but have the same habit, and 

 the leaves a little more directed towards the ventral 

 side. 



Leaves dentate, one remarkable, 



11. P. RETROSPECTANS, Nees. P. opMsthotona, Tayl. in 



Lond. Jour. Bot., 1844, p. 577. Tufts wide, olive- 

 green. Stems 2in. high. Leaves clustered into a com- 

 pressed capitulus at the top, which is bent back ; each 

 lower leaf is imbricated on at least one-half of the 

 one immediately above, erect, adpressed even in the 

 moistened state, rotundate or very widely ovate, obtuse, 

 with a remarkable tooth on the summit, both margins 



