278 A. W. Evans — Arrangement of Genera of JSepaticce. 



ORDER IV. RICCIACE^. 

 TRIBE I. RICCIE^. 



110. BoSChia Mont. Ann. des Sc. Nat. 4me serie, T. v, p. 3.51 (1856). 

 Species 1 , £ Weddellii of Brazil. 



111. Riccia Mich. Nov. Gen. p. 107 (1729): G. L. & N. Syn. Hep. p. 598. 



\Videly distributed ; species 50-00. The genus may be divided 

 into the subgenera Lichenodes, Spongodes^ Ricciella and Ricciocar- 

 piis, the last two of which are considered distinct genera by Dumor- 

 tier and others. 



113. TeSSellina Dnm. Comm. hot. p. 78 (1822); Hep. Bur. p. 164. 



Oxymitra Bisch. in Lindenb. Syn. Hep. Eur. p. I24];i829): G. L. & N. Syu. Hep. 

 p. 597. 



Rupinia Corda in Opiz. Naturl. p. 650 (1829). 



Pycnoscenus Lindb. in Ofv. Vet.-Akad. Forh. xix. p. 606 (1862). 



Species 1, T. pyramidata of Europe, etc. 



113. Corsinia Raddi in Opiisc. scient. d. Bot. (1818): G. L. &. N. Syn. Hep. p. 

 596. 



Species 1, C. m((roJi((ntioides of Europe. 



114. Myriorrhynchus Lindb. Acta Soc. pro P. et Fl. Fenn. T. ii, N. 5, p. 7 

 (1884). 



Species 1, M. fimbriatus Lindb. {Riccia fiinhriata Nees) of South 

 America. 



TRIBE II. SPH^ROCARPE^. 



115. Riella Mont. Sylloge Crypt, p. 94 (1856): Dum. Hep. Eur. p. 168. 

 Duriaea Bory &"Mont. Conipte. rendu, des seances de I'Acad. des Sciences (1843) : 



G. L. & N. Syn. Hep. p. 593. 



A small genus of Europe and Northern Africa. 



116. Sphaerocarpus Mich. Nov. Gen. p. 4 (1729): G. L. & N. Syn. Hep p. 594. 



A small genus of Europe and North America ; S. terrestris is the 

 most widely distributed species. 



117. ThalloCarpUS Lindb. in Bull. Torr. Bot. Chib, vi, p. 21 (1875): Underw 

 Cat. Hep. p. 29. 



Cryptocarpus Aust. in Proc. Phil. Acad. Dec. 1869, p. 231. 



Species 1, T. Curtisii Aust. of the Southern United States. 



