102 PULSE PAMILT. 



*- 1- Fhwersjksk-color or whitish with a purplish spat, in a very soft sillcy head. 



T. arv6nse. Rabbit-foot or Stone 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 fojdder, or running 



wild : heads thick and dense : corolla tubular, withering away after flower- 

 ing : flowers sweet-scented, in summer. ^ 



T. prat^nse, Bed 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. 



* * * I/no, wild Clovers, or one cult, from Europe, with spreading or running 



stems, and mostly pale or white flowers {remaining and turning brownish in 

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

 fl. spring and summer. 



T, refl^xum, Buffalo C. , "Wild S. and especially W. : somewhat 

 downy, with ascending stems 6' - 12' high, obovate-oblong finely-toothed leaf- 

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

 calyx-teeth hairy, and pods 3 - 5-seedod. ® @ 



T. Stolonlferum, 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. Carolini^num, 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-teeth. ^ 



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, y, 



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



P. C0rymb6su.S. In southern pine-bai-rens ; 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. viol&ceUS. Prairies W. : smoothish or pubescent, 1° - 2° high, with 

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

 and hoary calyx. 



P. C^rueus. Dry barrens S. : smooth, with branching stems, 5-7 linear 

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

 brous calyx. 



P. e&ndidus. 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. DALE A. (Named for an English botanist, Thomas Dale.) There are 

 many species S. W. beyond the Mississippi. 



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

 l°-2° high, smooth leaves of many lineai--oblong leaflets, and whitish small 

 flowers in a dense sillty spike, in summer. (J) 



