48 NORTH AMERICAN 



326. RIPASIA Raf. diff. Baptisia calix 

 campanulate base acute, petals unequal on 

 long claws, vexillum shorter reflexed, wings 

 longer, keel equal to vexillum, stamens sube- 

 qual, stigma acute, pod oblong terete acumi- 

 nate. Leaves with stipules, flowers blue ra- 

 cemose. This Genus or subgenus is known at 

 first sight by the flowers, calix, longer wings 

 and pod, stipules &c. The name implies its 

 constant locality near streams. 



327. RIPASIA CERULEA Raf. Bapt. Podalyria 

 Sophora australis or cerulea of Authors. 

 Smooth, branches terete, stipules lanceolate, 

 leaves on short petiols, folioles sessile cuneate 

 subacute, raceme erect elongate multiflore. 

 On the margin of rivers from the Potomak and 

 Ohio to Louisiana and Florida, estival. Some 

 Var. 1. obtusifolia, 2. rhombifolia, 3. ma- 

 crostachya &c. 



328. LASINIA Raf. difF. Baptisia, calix 

 often hairy vexillum obcordate short, base auri- 

 culate, wings not callose, pistil quite hairy, style 

 also at the base, pod subsessile, hairy oblong 

 acuminate: Perennial plants more or less 

 hairy, leaves reticulate with stipules and flow- 

 ers with bracts or else axillary, yellowish or 

 greyish This group will be easily known by 

 the hairy habit most intense in the pistil and 

 pod, bracts, deeply cleft vexillum &c Michaux 

 had 3 such hairy kinds, Elliot suspected there 

 were more, and I shall increase them to 7 

 species. 



329. LASINIA RETICULATA R. Bapt. lanceo- 

 lata and uniflora of Authors. Stem smooth di- 

 chotome angular sulcate, stipules minute, leaves 

 subsessile, folioles petiolate oblong obtuse base 

 cuneate, minutely nervose reticulate on both 



