228 FLORA OF TEXAS. 



half the length of tube ; legumes oblong, somewhat in- 

 flated ; abruptly curved in the middle, sessile. — Dricmmond. 



**** stipules cohering neither with each other nor with the petiole ; flowers in dense 

 spikes or heads ; legumes straight ; root annual. 



A. LEPTOCARPUS, Gray and Torrey. Stem about a foot 

 long, with somewhat spreading branches; leaflets A!' -b" 

 long, a little hairy on the midrib beneath, glabrous above ; 

 flowers purplish blue, -J-' long; calyx clothed with ap- 

 pressed dark-colored hairs ; vexillum broadly ovate ; keel 

 broad obtuse, with a narrow furrow along the back. — 

 Drummond. 



A. REFLEXUS. Steyn 1° or more in height, slender, 

 branched; leaflets y long, usually truncate and emargin- 

 Site;floivers \' long, purplish ; vexillum narrow, elongated ; 

 keel obtusely roseate, much longer than the wings; legumes 

 y long, somewhat triangular. (Gray and Torrey.) — Drum- 

 mond. 



***** stipules cohering neither with each other nor th£ petiole ; flowers purple or 

 white • legumes curved ; root annual. 



A. TRICHOCARPUS, Gray and Torrey. Stem 18°-20° 

 high, branched from the base; leaflets ^'-b"\ongj pubes- 

 cent with appressed hairs beneath ; floivers ^ long, blue ; 

 ovary glabrous ; legume 8"-10" long and I5' wide, slightly 

 curved toward the base, with a short abrupt point; seeds 

 somewhat truncate. — Drummond. 



VICIA, Tourn. Vetch or Tare. 



Calyx tubular, 5-cleft, the two upper teeth usually short- 

 er; style filiform, hairy at the apex or on the side facing 

 the keel ; legume 2-many-seeded, 2-valved ; seeds orbicular ; 

 cotyledons thick. — Slender climbing herbs ; leaves pinnate ; 

 the petiole terminating in a tendril ; stipules mostly semi- 

 sagittate ; floivers axillary. 



