GENERA. Ixiii 



182. ROBINIA. Keel obtuse. Seeds many. Style bearded. Cal. 2-lipped ; upper least 

 divided. An American Tree, sometimes naturalized, with racemes of pink or white Ft. L. with 

 stipulary spines, p. 96. 



• 183. COLUTEA. Standard with 2 caUi at base. Keel with, a short truncate beak. Cal. 

 of 5 teeth : the upper shorter. Style ciliate on its whole length. Stigma lateral, hooked. Leg. 

 inflated. Seeds many. Unarmed Shrubs. Slip, small, p. 96. 



184. PHACA. Style subulate, hairless. Leg. somewhat inflated, attenuate at each end. 

 Upper Suture tumid and seminiferous. Ovules more than 2. Keel obtuse. Herbaceous. Fl. 

 in axillary racemes. In some species the Leg. is imperfectly 2-celled. p. 97. 



196. CICEB,. Style hairless. Leg. inflated. Ovules 2. Cal. 5 -cleft; the 2 or 4 upper 

 divisions incumbent on the standard. An annual plant, with large, wrinkled, acuminate seeds. 

 p. 102. 



. * . 

 iv. L. pinnate, without an odd Lt. 



197. VICIA. Style terete, at right angles with germen. Stigma transversely bearded below 

 the tip. Two upper Teeth of Cal. shorter. Lis. numerous, with a tendril, except in V. lathy- 

 roides. p. 102. 



198. EBVUM. Style terete, at right angles with germen. Stigma equally hairy all over. 

 Cal. with 5, nearly equal, acute segments, nearly as long as coroUa. Seeds 2-6. Annual slender 

 Herbs. Lts. numerous, small. L. ending in a tendril, p. 106. 



199. PISUM. Style ascending, 8-edged. Stigma longitudinal, downy. Upper Div. of 

 Cal. shorter. Smooth Herbs, viith large, leaf-like stipules. L. tendrilled. Lts. few. p. 107- 



200. LATHYETJS. Style ascending, flattened vertically. Stigma downy, on dilated upper 

 half of style. Upper Div. of Cal. shorter. Herbaceous, climbing plants. L. tendnlled. Lts. 



fewi^-Zpair). L. Nissolia «»^ L. Aphaca /2«2;e «o ii!*. p. 107. 



201. OROBUS. Style ascending, straight, terete, channeled above. Stigma downy, lon- 

 gitudinal. Upper Teeth of Cal. shorter and deeper. Erect Herbs. L. without tendrils, p. 109. 



C Legume, more or less perfectly, longitudinally 2-celled. One Sta. separate. L. pinnate, 



with an odd Lt. 



185. OXYTKOPIS. Leg. with valves turned in on the upper sutui'e, or on both. Keel 

 with a protruding cusp. Herbaceous. Fl. in spikes. Leg. sometimes inflated, p. 97. 



186^ ASTRAG-ALUS. Leg. with valves turned in on the lower suture. Keel obtuse, 

 without a cusp. Perennials, very various in appearance; a few of them woody a7id spinous. 

 p. 97. 



187. BISEE.E.ULA. Leg. flat: the sides united by a narrow sept. Margins dentato- 

 sinuate. Fl. small, purplish, hi ovate spikes. Spike-stalks shorter than L. p. lOO. 



D. Legume transversely divided {except in Onobrychis, which has only one division, and Secu- 

 rigera, where there is a continued, connected margin). L. simple in Scorpiurus; in the other 

 genera pijinate, with an odd Lt. 



188. SCOKPIUEUS. Leg. revolute, longitudinally furrowed. Cal. in 5 equal segments. 

 Keel divided at base, acuminate. Annual Herbs. L. quite entire, attenuate. Slip, mem- 

 branous, p. 100. 



189. COROKTILLA. Leg. round, nearly straight. Upper Teeth of Cal. nearly united. 

 Pet. with long claws. Keel acuminate. Fl. in umbels, p. 100. 



193. SECURIGERA. Leg. flat : joints connected by a continuous margin. Cal. 2-Hpped. 

 Pet. with long claws. Keel acuminate. Herbaceotcs ; with the habit of Coxow^a. p. 101. 



190. AETHROLOBIXTM. Leg. nearly round : joints truncate at each end. Keel small, 

 obtuse. Cal. with 5, nearly equal teeth, without leafy bracts. Smooth Herbs. Slip., if any, 

 opposite to L. p. 101. 



