80 CLASS XVII. ORDER X. 



-—incarnata^ keel crested, spiked, stem branched 

 erect, leaves alternate subulate, r — -Keel not 

 APPENDAGED — sanguiuea^ spikes in heads, pedun- 

 cles scurfy, stem angled, erect, branched, r. — ver- 

 iicillatay leaves narrow-linear whorled, flowers with 

 spaces between them. w-r. — senega, (seneca snake- 

 root) spike filiform terminal, stem simple, leaves 

 lance-oblong. l|.w. 



Order X. Decandria. 



A. Stamens united in one set, 



Amorpha. Calyx bell-form 4 or 5-cleft : ban- 

 ner ovate, concave, wings and keel : legume 2- 

 seeded, falcate. 32. 93 — -fruticosUi (false indigo) 

 somewhat shrubby, leaves glandular petioled, calyx 

 4-toothed. ^2 . b-p. 



LupiNus. Corol 2-lipped : anthers, 5 oblong 

 and 5 roundish : legume coriaceous, torulose. 32. 

 93 — fierennis (lupine) leaves divided, calyxes not 

 appendaged alternate. % • h.'-'villosus, leaves sim- 

 ple, calyxes appendaged half-whorled. 2/.w-p.«— 

 fiilosusf leaves divided, calyxes appendaged whorl- 

 ed. 



Crotolaria. Corol with the banner cordate, 

 large : keel acuminate : filaments connate, with a 

 dorsal fissure : style curved ; legume pedicelled, 

 turgid. 32. 93 — sagittalis, (rattle-box) leaves lance- 

 oblong, stipules acuminate decurrent, opposite to 

 the racemes. ^. y. — parvijiora, leaves lanceolate, 

 upper stipules decurrent very short opposite to the 

 racemes. 



Genista. Calyx 2- lipped, 2 upper teeth very 

 short : banner oblong, reflexed back from the pis- 

 til and stamens. 32. 93 — .tinctoria, (dyer's kneed- 

 grass) leaves lanceolate smooth, branches striate, e. 



Arachis. Calyx 2-lipped : corol upside down : 

 legume gibbous, torulose, veiny, coriaceous. 32. 93 



