JIANDP.OOK OF llRlTISir H KPATIC/E. 79 



Plants stipulate, rarely without stipules, leaves 

 incurrcut, divndecl. 



"The species of this c^enus are a standinc^ puzzle 

 to hcpaticologists. They are all so alike in habit, 

 and in their more obvious characters, that a casual 

 observer would unhesitatinc^ly refer them to the 

 same genus; but when we try to define the species, 

 we find it difficult to assic^n them positive limits." 

 — Spruce Hep. Aniaz. p. j6S. 



Bazzania trilobata, Linn. 



Stem creeping, branched, leaves imbricate, 

 convex, ovate, apex truncate, three-toothed, 

 stipules broadly quadrate, three to five toothed, 

 six times shorter than the leaves. 



Jungcrmannia trilobata, Linn. Sp, I599- 

 Hook. Br. Jung. t. 76; Gott. and Rab. Exs. 

 18, 280. Jungcrmannia radicans, Hoffm. Eng. 

 Bot. t. 2232. Ma$tigobrynm trilobatmn, Nees 

 Syn. Hep. 231; Cooke Hep. f. 125. Plcuro- 

 chisnia trilobatum, Dumort. Syll. Jung. p. 70. 

 Daozania trilobata, Carr. and Pears. Exs. No. 

 39, 187. 



In mountainous districts. 



Growing in large dense patches, sometimes ex- 

 ceeding a foot. Stems 3 to 5 inches long, creeping 

 horizontally upon the ground, sometimes simple, 

 innovant, at others dichotomously branched, 

 brownish. Flagellae about an inch long, from the 



