BIADELPHIA. DECANDRIA. 103 
; upon a very long peduncle; bractes broad and acuminate, 
y deciduous; carina very short; legume gibbous, and trans- 
versely rugose. Has. In Carolina and Florida, also com- 
mon in the open forests of Ohio, Kentucky and Tennessee. 
i Perennial. Stem about 12 to 18 inches high, grooved 
} and minutely strigose. Stipules cauline, linear, acumi- 
nate; leaves ternate, without glands, a little pubescent, 
| central leaflet conspicuously petiolaie. Spikes or racemes 
| in fruit S or 4 inches long, common peduncle 4 to 6 
inches. Flowers pale yiolet, pedicellate, erect. Calix 
pubescent, almost equally 5-cleft and strongly veined, 
without glands. Wings (or lateral petals) more than twice 
j the length of the carina. Legume I-seeded, naked and 
transverse, the length of the calix; persistent style ator 
pinate. The entire absence of glands, the minuteness 
: the carina, and the fruit, decide this plant to be a Melilotue, 
referred by Clayton; it is 
link to Psoralea. 
to which genus it was long ago 
at the same time the tin 
An European genus, with a few species indigenous te 
Barbary and the Levant. 
vered by the calix, 2 to 4 
; Herbaceous; leaves ternate, rarely digitate; stipules ad- 
nate to the base of the petiole, flower in 7. pratense mo- 
nopetalous. = 
iis Speoues. 1. T. referum. 2. repens. Cultivated and natu- 
—-,. ralized. 3. carelintanum. 4. microcephaiim. Pu. In Cali- 
fornia. 5. pratense. Cultivated and naturalized. 6. pennsyl- 
vanicum. 7. arvense. Native. 8. agrurtum. 9. procum- 
bens. ‘Fhese 2 last are naturalized. 10. involweratum. 
1}. * megacephalum. 
p. 479. t. 23. “Teaflets 
very long, stipules cuneate, incisely 3-tooth 
Near the 
T. Lupinaster appear to possess any single generic cha- 
racter distinct from Trifolium. There can surely be no 
2 generic character in leaves; but even here ot Pinon 
altogether wanting, as many genuine species of Trifolium 
_ occasionally produce more than 3 leaffets. a, 
A genus of near 80 species, principally indigenous to 
