CLASS XVIII. ORDER I. 8J 



lance-oblong, stipules filiform, flowers racemed. 

 IJ. . p. — violaceum^ leaves oval obtuse, racemes um- 

 belled, flowers in pairs. 2/ . p. — divergens^ leaves 

 oblong obtuse, racemes longer than petioles, flowers 

 in pairs. %. p. — nudiflorumf leaves roundish-ovate 

 pointed, scape panicled glabrous. %. p. — rotundi- 

 folium^ stem prostrate hairy, leaves orbicular, l^.p. 

 canescensy leaves roundish, stem angular ciliate 

 bristly. :2/. p. 



Stylosanthes. Calyx tubular, very long, bear- 

 ing the corol which originates higher than the top 

 of the germ : loment two-jointed, hooked. (Some- 

 times the pod is in a single joint.) 32. 93— f/arior 

 (pencil-flower) leafets lanceolate, bracts ciliate, 

 flowers spiked, y. 



Aeschynomene. Calyx 2-Iipped: loment com- 

 pressed, one suture strait, another iobed ; joints 

 truncate, 1 -seeded. 32. 93 — hisfiida (false sensitive 

 plant) petioles with bristly tubercles, leafets many- 

 paired linear obtuse. O. y-r. 



POLYADELPHOUS PLANTS. 



The genera Ascyrum and Hypericum were 

 placed in the class fiolyadelfihia by Linneus, and 

 are still retained in that class by many authors. 

 We, following Persoon's method, have removed 

 them to the class _/2o/z/anc?rza, and left the class /^o- 

 lyadelphia out of the system. 



CLASS XVIIL SYNGENESIA. 



Order I. Polygamia ^quALis. 



A. Floreta ligulate. 



Tragopogon. Calyx simple, many-leaved : re- 

 ceptacle naked : egret plumose and stiped.f 45. 53 



f Pull off the corol, stamens and styles ; whatever is left 

 «n the germ is the egret. In some flowers the stipe to sti- 



