118 Melanthacearum America Septentrionalis Revisio. 



1. Veratrum propr. 



Perianthii foliola obovata vel oblonga, vix acuta, basi 

 plus minus angustata, staminibus subduplo longiora : filamenta 

 demum extrorsim patentia. 



Caules robusti, foliosi : folia late ovata vel oblonga, plicato- 

 nervosa, caulem vaginantia ; superioribus sensim minoribus, 

 bracteis insidentibus : panicula plerumque pyramidata, race- 

 mis simplicibus : fiorcs flavo-virentes vel atro-purpurei. 



Veratrum, Linn. (excl. sp.) ; Juss. gen. p. 47 ; Lam. ill. 

 t. 843 ; Michx. fi. 2, p. 249 ; Willd. spec. 4, p. 895 ; Nutt. 

 gen. 1, p. 233 (excl. sp.). 



HelonijE species, Ker, in bot. mag. etc. 



Obs. V. Sabadilla, Retz. a Veratro diversa videtur, an- 

 theris praesertim bilocularibus (conf. fig. in Diet. sci. nat. et 

 descr. Rcem. Sf Schult. syst. 7, p. 1558,) necnon floribus nutan- 

 tibus secundis: forte (cum aliis Mexicanis nondum descriptis, 

 vid. Schiede, in Linnaa, 4, pp. 226 Sf 234,) genus proprium 

 constituere meretur. 



1. V. viride ; ramis paniculse demum patentibus ; foliolis 

 perianthii campanulati oblongis, basi subangustatis, filamentis 

 plerumque planis paulo longioribus. 



Veratrum viride, Ait.lwrt. kcw. (fid. 1,)3, p. 896; Pursh,Jl. 1, p. 

 242, Bigel. Am. med. bot. t. 33; Ell. hot. S. Car. Sf Georg. 1, p. 419; 

 Torr.fi. 1,^.363; Ram. $ Schult. syst. 7, p. 1556; Darlingt.fi. Cesl. 

 {ed. 2,) p. 232. 



V. album, Michx. fi. 2, p. 249. non Linn. 



Helonias viridis, Bot. mag. t. 1096, excl. syn. 



Melanthium bracteolare, Desrouss. in enc. meth. 4, p. 26. 



