LEGUMINOSsE. 



217 



1. Lathyrus. Calyx campanulate, 5 -cleft. Style flat, dilated 

 above, ascending, pubescent, or villous on the inside next the stamen. 

 V 



L. PALUSTRIS (Marsh VetcJi). Glabrous ; stem ascending, winged; 

 leaves 4-6-foliate ; leaflets narrow-oblong, sessile ; stipules minute ; pedun- 

 cles axillary, 3-5 flowered ; flowers light purple ; legumes broad-linear, 

 compressed. In meadows, 1-2 feet high. June. 



2. Pisum. Calyx-segments leafy ; 2 upper shortest. Banner re- 

 flexed. Stamens 10, in 2 sets, 9 and I. Style compressed. Legume 

 oblong, many-seeded. 



P. SATIVUM (Pea). Glaucous, smooth ; stem nearly simple, climbing ; 

 leaves 4-6-foliate ; leaflets ovate, entire ; stipules ovate, semi-cordate at base ; 

 flowers large, white, 2-5 on axillary peduncles. A cultivated plant, 2-5 feet 

 high, climbing by its tendrils. May-June. 



3. Phaseolus. Calyx campanulate, 5-toothed, 2 upper teeth more 

 or less united. Keel, together with the stamens and style, spirally 

 twisted. Legume linear, or falcate, more or less compressed. 



1. P. VULGARIS (Bean). Stem twining ; leaflets ovate, acuminate ; 

 racemes solitary, shorter than the leaves ; pedicels in pairs ; legume pendu- 

 lous. Cultivated in gardens. 



2. P. MULTIFLORUS (Scarlet Pole-Bean). Stem twining ; leaflets ovate, 

 acute ; flowers large, scarlet, very ornamental, in solitary racemes ; pedicels 

 opposite ; legumes pendulous ; seeds reniform. Cultivated. 



4. Apios. Calyx 2-lipped ; standard broad, reflexed ; . stamens 

 diadelphous. Pod many-seeded, y. 



A. TUBEROSA (Ground - Nut). Sterti twining; leaves 5-y-foliate ; 

 leaflets ovate-lanceolate, entire ; flowers dark purple, of a peculiar leathery 

 appearance. The root bears numerous nutritious tubers. Low grounds 

 and thickets. July-August. 



5. Wistaria. Calyx campanulate ; upper lip with 2 short teeth. 

 Banner with 2 callosities. Wings and keel falcate. Legume many- 

 seeded, y. 



W. FRUTESCENS (Common Wistaria}. Stem long, climbing; leaves 

 o/-i3-foliate ; leaflets ovate-lanceolate, acute, slightly pubescent ; racemes 

 long, pendulous, with large, colored bracts ; flowers lilac-colored. Common 

 in cultivation. May. 



6. Amphicarpaea. Calyx tubular, campanulate, 4, sometimes 5- 

 toothed ; segments nearly equal. Petals oblong. Banner with ap- 

 pressed sides. Stigma capitate. Ovary stipitate. Legume flat, 2-4 

 seeded. Flowers of two kinds. 



A. MONOICA ( Wild Pea-vine']. Stem slender, hairy, twining ; leaves 

 pinnately trifoliate ; leaflets ovate, acute, smooth ; upper and perfect flowers 



