208 PROCEEDINGS OF THE AMERICAN ACADEMY 



43. A. OBCORDATUS, Ell. Sk. 2, p. 227. MulticauHs, Immilis, 

 difFusus, subglaber ; foliolis 7 - 12-jugis obcordatis ; racemo brevi spici- 

 formi ; calycis cinereo-pilosi dentibus setaceo-subulatis tubo fequilon- 

 gis ; corolla pallide purpurea, vexillo emarginato ; leguminibus lunatis 

 subcompressis tenuiter coriaceis maxime reticulatis, sutura dorsali 

 extus sulcata intra loculum leviter intrusa, ventrali acuta costiformi. — 

 Florida and Georgia, in sand-barrens. — Flowers scarcely larger than 

 in the foi'egoing ; the crescent-shaped legumes larger, fully an inch 

 long, the ventral suture salient. 



44. A. GLABER, Michx. Fl. 2, p. 66. Elatus (bipedalis), erectus ; 

 foliolis 9-18-jugis elliptico- seu lineari-oblongis crassiusculis vix retusis ; 

 stipulis minimis; racemo laxifloro ; calycis dentibus triangulari-subulatis 

 brevibus ; corolla alba, carina alls vexilloque paullo breviore ; legumin- 

 ibus oblongo-linearibus arcuatis seu rectiusculis subcompressis trans- 

 versim venoso-reticulatis dorso sulcatis et sutura introflexa semibilocel- 

 latis, sutura ventrali extus prominente costiformi. — North Carolina 

 to Florida, in pine-barrens. — Flowers fully half an inch, legumes an 

 inch long. 



§ 15. Lotifiori. Orobideis Austro-Orientalibus subdiv. -i— -j— fere sim- 

 iles, nisi plantfE et legumina villosse seu canescentes, humiliores, 

 floribus flavidis. Legumcn semi-ovatum oblongumve, turgidum, 

 coriaceum, subarcuatum, dorso gibboso pi. m. impresso subtrigonum, 

 uniloculare, sutura ventrali extus carinato-prominente. Corolla 

 calycem paullo superans, carina apice inflexa. Calycis dentibus 

 elongatis tubo lon";ioribus. 



45. A. viLLOSUS, Michx. Fl. 2, p. 67. Phaca villosa, Nutt. etc. 

 Laxe villosus ; caulibus spithamjeis adsurgentibus ; foliolis ovalibus 

 retusis ; racemis longe pedunculatis capituliformibus plurifloris ; calycis 

 dentibus lineari-subulatis tubo multum longioribus ; legumine villosis- 

 simo dorso manifeste intruso fere semidiviso, sectione transversali 

 obcordata. — Dry pine barrens. South Carolina to Florida and Lou- 

 isiana. — Corolla 4 lines long, curved. 



46. A. LOTiFLORUS, Hook. Fl. Bor.-Am. 1. c. Phaca lotijlora^ Nutt. ; 

 Torr. & Gray, 1. c. P. {Astragalus) cretacea, Buckley in Proceed. 

 Acad. Philad. Dec. 1861, p. 452. Pilis appi*essis canescens vel cine- 

 reus ; caulibus brevissimis ; foliolis lanceolato-oblongis ; capitulis pau- 

 cifloris ; calycis dentibus subulatis tubo longioribus ; legumine oblongo- 

 ovato magis inflato subcanescente dorso leviter impresso, sectione 

 transversali obovata retusa sispiusve basin versus late obcordata. — 



