and the American Loti. 365 



§ 1. StipulcefoliacecBvelscariosce. 



1. H. BicoLOR (Dougl.), stipulis scariosis, pedunculis ebiacteatis, dentibus ca- 



lycinis brevissimis. Bot. Reg. t. 1257- 

 Lotus pinnatus. Hook. Bot. Mag. t. 2913. 



Columbia river. Douglas. 



2. H. CRASSiFOLiA, stipulis scariosis, pedunculis infra umbellam folio trifolio- 



lato bracteatis, dentibus calycinis brevissimis. 



Size and habit of H. bicolor. Leaflets broad, obovate, somewhat fleshy. 

 Powers blue ? or purple ?, rather smaller than in H. bicolor. 



California. Douglas. 



3. H. sTiPULARis, stipulis foliaceis latfe semisagittatis, pedunculis infra um- 



bellam folio trifoliolato bracteatis, dentibus calycinis tubo brevioribus. 



Size and habit of H. bicolor. Stems and petioles hairy. 

 California. Douglas. 



4. H. GRACILIS, glaberrima, foliolis inferioribus latfe obovatis, stipulis amplis 



membranaceis, pedunculis apice folio trifoliolato bracteatis, calycibus sub- 

 bilabiatis tubo dimidio brevioribus. 



A much slenderer and smaller plant than H. bicolor, to which it has in 

 other respects much resemblance. Flowers rather smaller, more slender, 

 with longer alae. 



California. Douglas. 



5. H. MExicANA, subcanescens, foliolis omnibus oblongis linearibusve, stipulis 



parvis scariosis, pedunculis 1 — 2-floris apice folio trifoliato bracteatis, 

 dentibus calycinis subulatis tubo brevioribus. 



A slender plant like the last. Flowers smaller, with the alae and vexillum 

 broader, but in other respects those of a true Hosachia. 



Communicated by G. J. Graham, Esq., who gathered it during his visit to 

 the mining district of Tlalpuxahua. 



3 B 2 



