102 PULSE FAMILY. 



H- 1- Flowers Jiesh-cohr or whitish wUhifltVVlish spot, in a very soft silky head. 

 T arvense, Rabbit-foot or Stone C. Erect, silky-downy especially 

 the oblono' or at length cylindrical grayish heads or spikes, the corollas almost 

 concealed by the plumose-silky calyx ; leaflets narrow. 



« * Larger, rose-red-Jlowered Clovers, cult, from Europe for fodder, or rtmnirtg 

 wild: heads thick and dense: corolla tulmlar, withei-tiig away after flomer- 

 ing : flowers sweet-scented, in summer. % 

 T prat6nse. Red C. Stems ascending ; leaflets oborate or oval, often 

 notched at the end and with a pale spot on the face ; head closely surrounded 

 bv the uppermost leaves. 

 'T medium. Zigzag C, with a zigzag stem, more oblong entire and 

 spotless leaves, and head usually stalked, is rare, but has run wild E., and 

 passes into the last, 



» # * Low, wild Clovers, or one cnll. from Europe, with spreading or nmninq 

 stems, and mostly pale or lohite flon-ers (remaining and taming brownish in 

 fading) on pedicels, in round umbels or heads, on slender naked peduncles : 

 ft,, spring and summer. 

 T. reflexum, Buffalo C. Wild S. and especially "W. : somewhat 

 downy, with ascending stems 6' - 12' high, obovate-oblong tinelj'-toothecl leaf- 

 lets, heads and rose-rod and whitish flowers fully as large as in Red Clover, 

 calyx-teeth hairy, and pods 3-. 5-seedcd. ® ® 



T. stoloniferum. Running Buffalo C. Prairies and oak-openings 

 W. : like the last, or a variety of it, but some of the stems forming runners, 

 leaflets broadly obovate or inversely heart-shaped, flowers barely tinged with 

 purple, and pods 2-seeded. (T) % 



T. Carolinianum, Carolina C. Fields and pastures S. : a little downy, 

 spreading in tufts 5' - 10' high, with small inversely heart-shaped leaflets, broad 

 stipules, and small heads, the purplish corolla hardly longer than the lanceolate 

 calyx-tcctli. '2J. 



T. ripens, White C. Fields, &c. everywhere, invaluable for pasturage : 

 smooth, with creeping stems, inversely heart-shaped leaflets, long and slender 

 petioles and peduncles, narrow stipules, loose umbel-like heads, and white 

 corolla much longer than the slender calyx-teeth. ^ 



10. PETALOSTEMON, PRAIRIE CLOVER. (Name composed of 

 the Greek words for petal and stamen combined.) In prairies, pine-barrens, &c. 

 W. and S. . flowers never yellow. 24 



» Heads crowded in a corymb, leafy-bracted : ft. late in autumn. 



V. COrymbdSUS. In southern pine-barrens ; 2° high, with leaves of 3-7 

 filiform leaflets, and white flowers, the slender teeth of calyx becoming plumose. 



* » Heads or mostly spikes single terminating stems ; ft. summer. 



P. viol^eeus. Prairies W. : smoothish or pubescent, 1° - 2° high, with 

 mostly 5 narrow-Unear leaflets, a short spike even when old, rose-purple flowers, 

 and hoary calyx. 



P. carueus. Dry ban-ens S. : smooth, with branching stems, 5-7 linear 

 leaflets, long-pedunclcd short spikes, flesh-color or pale rose flowers, and gla- 

 brous calyx. 



P. C^ndldUS. Prairies W. & S. : smooth, 2° - 3° high, with 7-9 lan- 

 ceolate or linear-oblong leaflets, long-peduncled spikes, with awn-pointed bracts, 

 and white flowers. 



There are besides one or two rarer species W., and several more far W. & S. 



11. DAIiEA. (Named for an English botanist, Thomas Dale.) Thete are 

 many species S. W. beyond the Mississippi. 



D. alopecuroldes. Alluvial river banks W. & S. ; with erect stem 

 1° - 2° high, smooth leaves of many lineir-oblong leaflets, and whitish small 

 flowers in a dense sHky spike, in summer. © 



