ii6 Alexander W. Evans, 



salongo and Schiffner, although neither author tells us anything 

 about them in the text. According to Stephani the male branches 

 are numerous and are borne on pinnae or pinnules, often termi- 

 nating ultimate branches. He adds that they are small and hidden 

 by branches under which they curve ; that the wings are broad, 

 erect and irregularly papulose ; and that the antheridia may number 

 as many as eight. The published figures support most of these 

 statements but give no further information. 



The female branches, in all the cases observed by the writer, are 

 given off directly from the main axis and are usually in subopposite 

 pairs. Before forming the female inflorescence, the branch usually 

 gives rise to a secondary branch on the outer side and often to 

 another on the inner side. The outer branch usually develops 

 into a photosynthetic branch-system, somewhat less complex than 

 those described above. The inner branch may give rise to a 

 similar branch-system but is sometimes a second female branch, 

 two closely approximated female branches being thus formed. In 

 a single instance a proliferation of a primary female branch or 

 perhaps a second outer branch was observed, consisting of a short 

 thalloid structure with a single branch, both essentially like the 

 ultimate branches of a photosynthetic system. The female inflor- 

 escence itself is very short and apparently develops very few 

 archegonia. The involucre consists of a small number of crowded 

 leaf-like or tooth-like lobes, the larger of which are shortly toothed. 

 Underneath the inflorescence a few rudimentary lamellae may be 

 demonstrated. The largest "calyptra" seen by the writer was 2.4 

 mm. long and 0.75 mm. wide, but Stephani gives the length as 5 

 mm. The surface is roughened by projecting cells or groups of 

 cells, appearing (in Schiffner's words) as if it were covered over 

 with angular particles of sand. The corona is distinct but small. 



2. RiccARDiA PREHENSiLis (Hook f. & Tayl.) Massal. 



Jungcrmannia {Mctsgcria) prehcnsilis Hook. f. & Tayl. Jour. 



Bot. 3: 480. 1844. 

 Mctzgeria eriocanla var. chilcnsis G. L. & N. Syn. Hep. 505. 



1846. 

 Mctzgeria prehcnsilis Tayl. & Hook, f, in G. L. & N. Syn. Hep. 



505. 1846. 

 Sarcomitrimn prehensile Mitt, in Hooker, J. D., Fl. Novae Zeal- 



andiae 2: 167. 1855. 



