102 PULSE FAMILY. 



*- - Flowers flesh-color or whitish with a purplish spot, in a very soft silky head. 



T. arv^nse, RABBIT-FOOT or STOXK C. Erect, silky-downy, especially' 

 the oblong or at length cylindrical grayish heads or spikes, the corollas almost 

 concealed by the plumose-silky calyx ;" leaflets narrow. 



# Larger, rose-red -flowered Clovers, cult, from Europe for fodder, or running 

 wild : fiends thick and dense : corolla tubular, withering away after flouoei'- 

 ing : flowers sweet-scented, in summer. ^ 



T. prat^nse, RED C. Stems ascending ; leaflets obovate or oval, often 

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

 by 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 cult, from Europe, with spreading or running 

 stems, and mostly pale or ivhite flowers (remaining and turning brownish in 

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

 fl. spring and summer. 



T. refl6xum, BUFFALO C. Wild S. and. especially W. : somewhat 

 downy, with ascending stems G' - 12' high, obovate-oblong finely-toothed leaf- 

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

 calyx-teeth hairy, and pods 3-5-secded. (T) 



T. Stolonil'erum, 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. Carplinianum, CAROLINA C. Fields and pastures S. : a little downy, 

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

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

 calyx-teeth. If. 



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. 2/ 



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. ^ 



* Heads crowded in a corymb, leafy-bracted : fl. late in autumn. 



P. COrymbbsilS. 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 : fl. summer. 



P. violaceus. Prairies W. : smoothish or pubescent, l-2 high, with 

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

 and hoary calyx. 



P. carneilS. Dry barrens S. : smooth, with branching stems, 5-7 linear 

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

 brous calvx. 



P. cahdidllS. Prairies W. & S. . smooth, 2 -3 high, with 7-9 lan- 

 ceolate or linear-oblong leaflets, long-pedmicle.d spikes, with awn-pointed bracts, 

 and white* flowers. 



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



11. DALE A. (Named for an English botanist, Thomas Dale.) There arc 

 many species S. \V. hevoiul the Mississippi. 



D. alopecuroides. Alluvial river banks W. & S. ; with <3rect stem 

 1 - 2 high, smooth leaves of many linear-oblong leaflets, and \vhitish binail 

 flower* in a dense silky spike, in summer. (D 



