296 Alexander W. Evans, 



Martinique: Morne de la Calabasse, without date or col- 

 lector's name (type, cited by Plumier) ; without definite locality, 

 date, or collector's name (type of M. cartilaginea) ; without 

 definite locality or date, Halm 134/ ; T. Husnot ig"/, ip8 (the 

 last three listed by Bescherelle in Jour, de Bot. 7: 193. 1893). 



French Guiana: near Cayenne, 1835-49, Lepricnr 1386 

 (listed by Montagne in Ann. Sci. Nat. Bot. IV. 3:320. 1855). 



Venezuela: Merida, K. Goebel (figured in Organographie 

 der Pflanzen 258. /. i^y. 1898) . 



Colombia: Muzo, Fusagasuga and Puripi, 1859, A. Lindig 

 1715, 1718, 1719, 1722, 1723 (listed by Gottsche in Ann. Sci. 

 Nat. Bot. V. 1 : 186. 1864). 



Peru: Rio Huallaga, November, 1902, E. Ule ^27 (listed by 

 Stephani in Hedwigia 44:223. 1905). 



Brazil: "Montagne d'Estrella," G. Raddi (cited by Raddi, 

 see below) ; without definite locality or date, F. Scllozv (type of 

 M. hrasiliensis) . 



The specimens recorded by Schiffner from the Fiji Islands 

 (Leberm. Forschungsr. S. M. S. "Gazelle" 43. 1890) are 

 described as having ciliate-dentate ventral scales and would 

 probably now be referred to some other species. 



The interpretation of M. chenopoda is beset with difficulties, 

 and a history of the species may therefore be in place. The 

 Linnaean description or diagnosis is very short and reads, 

 "Marchantia calyce communi dimidiato palmato quadrifido." If 

 the term "calyx" signifies the female receptacle this descrip- 

 tion would not apply accurately to any of the known American 

 species, where a four-parted receptacle occurs only as an abnor- 

 mality. If the term signifies the male receptacle there are sev- 

 eral species to which the description might perhaps apply. In 

 any case it would be quite impossible to identify a definite species 

 by means of the Linnaean description alone. 



Unfortunately the only synonym which Linnaeus quotes, the 

 "Lichen anapodocarpos" of Plumier, is likewise insufficient to 

 lead to a positive conclusion. Plumier^^ described his plant from 

 material collected on the Morne de la Calabasse in Martinique. 

 Linnaeus cites the original description and figure and also the 



^ Traite des Fougeres de I'Amer. 143. pi. 142. Paris, 1705. 



