lis DIADELPHIA. DECANDT5IA. 



or racemose {Galactia?) Calix mostly bibracteate at the 

 base. 



f^PECiES. 1. C virgiidaiia. The largest papilionaceovis 

 flower in the United Siates. 

 ' 2. Plumieri. Stem twining; leaves ternat-,ovate-obh)ng, 



acuminate, calix campanulate, siiorter than the ovate 

 bractcs; corolla large, sericeous.. Persoon, Syn. 2. p 303. 

 Legume very long (and narrow), ('arina pariiculai ly to- 

 xneptose. Hab. V V. Aroiiiid New Orleans. 



3. fnanana. From Pennsylvania to Carolina On the 

 banks of the Schuylkill 2 miles from Fhiladt Iphia, but 

 rare. Obs. Legume smooth and torulose, about 3-seed- 

 ed, and rather short; flowers by pairs, large andpale hlue, 

 stem erect or twming p.t the summit; leaves ternate, ovate, 

 acute, paler beneath; partial bractes subulate, c jnspicu- 

 ous; cahx tubular-campanulate, 5-cleft, much longer than 

 the bi aC^es^ 



A genus of 11 species indig-enous to tropical America, 

 except C mariana and 2 species in India; C virgi7uana 

 is also indigenous to Jamaica and St. Domingo. 



520. ROBfNIA. L. (Locust Tree.) 



Calix small and campanulate, 4-cleft, upper 

 se^^ment bifid. Legume compressed and elonga- 

 ted, many-seeded, seeds compressed* small. 



Trees or shrubs with pinnated leaves, (in Caragana 

 abruptly pinnated), stipules cauline and partial, small, or 

 setaceous, peduncles mostly axillary, racemose. Stigma 

 villous above. 



Species. 1. R. Pseudacacia, (White Locust-tree.) 2= 

 viscosa. 3. hispida. 



Excluding Carag-avMy the rest of this genus of 15 spe- 

 cies is almost exciusiveiy indigenous to tropical America, 

 the only exceptions are 1 species in India, and another 

 in China. 



521. INDIGOFERA. L, (Indigo.) 



Calix spreading, 5-tootlied. Carina on either 

 side, near the base, producing a subulate spread- 

 ing spur (or denture). Legume linear, rather 

 small, terete or quadrangular. 



Herbaceous or shrubby; leaves simple, binate, ternate, 

 quinate or pinnate; stipules cauline, minute, general and 



