2o6 Alexander W. Evans, 



M. cartilaginea Lehm. & Lindenb. (1832) from St. Vincent, M. 

 brasiliensis Lehm. & Lindenb. (1832) from Brazil, M. Berteroana 

 Lehm. & Lindenb. (1834) from Juan Fernandez, M. domingensis 

 Lehm. & Lindenb. (1834) from Santo Domingo, M. tholophora 

 Bisch. (1835) fi'om Mexico, M. inflexa Mont. & Nees (1838) 

 from Martinique, M. plicata Nees & Mont. (1838) from Bolivia, 

 M. quinqueloba Nees (1838) from the West Indies," M. peru- 

 viana (Nees & Mont.) Nees (1839, ^s Grimaldia peruviana) from 

 Bolivia. In the Synopsis Hepaticarum these species are all 

 recognized with the exception of M. Szvartzii, which is made a 

 synonym of M. chenopoda, and M. platycnemos, which is made a 

 synonym of M. papillata. Two other species, M. pusilla Nees & 

 Mont, from Chile and M. lamellosa Hampe & Gottsche from 

 Venezuela, are described as new; a third species, M. linearis 

 Lehm. & Lindenb. (1832), originally described from Nepal, is 

 quoted from several of the Lesser Antilles ; while both M. poly- 

 morpha and M. chenopoda are cited from numerous American 

 localities. The Synopsis, therefore, recognizes sixteen species 

 in all from North and South America. 



During the period from 1847 to 1899 comparatively little was 

 added to our knowledge of the genus in America. The follow- 

 ing species, however, were described as new : M. flabellata Hampe 

 (1847) fi'oni Venezuela, M. Notarisii Lehm. (1857) from Chile, 

 M. Dillenii Lindb. (1883) from Jamaica, M. siibandina Spruce 

 (1885) from Peru, M. Bescherellei Steph. (1888) from Brazil, 

 and M. oregonensis Steph. (1891) from Oregon, Two of the 

 most noteworthy papers on Marchantia appearing during this 

 time were by Schififner. In the first he brought out the fact 

 that M. brasiliensis and M. cartilaginea were synonyms of 

 M. chenopoda* ; in the second he showed that M. tabularis Nees, 

 a South African species, was a synonym of the older M. Berte- 

 roana.^ Another reduction to synonymy was suggested by 

 Howe,® who showed that M. oregonensis was based on very 

 uncertain characters and that it could not be well separated from 

 M. polymorpha. 



^ No station is cited for this species in the original publication ; the 

 Synopsis, however, gives, "in India occidentali." 

 * Nova Acta Acad. Leop.-Carol. 60 : 287, 288. 1893. 

 ' Oesterr. Bot. Zeitschr. 46 : 41-44, 100-103. 1896. 

 " Mem. Torrey Club 7 : 62. 1899. 



