Trifomum. LEGUMINOSiE. 315 



calyx tuhiilixr-rampanulato, ijlabrous ; the teeth nearly equal, trianofiilnr-fiiibu- 

 late, shorter llian tlie tube; vexilkini broadly obovate, tlin-e tiincs the b'tiirtli 

 of the calyx ; legume 4-5-seeded. — Ton\ ! in ann. lye. Ntic- York, 1. ]>. '^b. 

 t. 3,/ 4. 



On James' Peak, Rocky Mountains, /?r. James! — If Plant 1-2 inches 

 hi<Th. Leaflets marly halt an inch Ions'. Flowers about ^ of an inch in 

 lenijth, purple ? Vexilluui broadly obovate. — Aearly allied to T. uuiliorum 

 iind T. exiuiium. 



-I— 11. T. dnsyphylhtm : densely ctes])itosc ; caudex short and thick, branch- 

 ing above; leaves, peduncles, and calyx canesoently silky with brownish 

 hairs ; leaflets 3. lanceolate or oblong-lanceolute, acute or acuminate, tntire ; 

 stipules membranaceous, lanceolate, subulate-acuminate; head globose, many- 

 flowered, on a \ox\g radical j)eduncle ; teeth of the calyx subulate-setaceous, 

 nearly equal, longer than the tube and half as long as the corolla ; legume 3- 

 4-seeded. 



Suumiitof the Rocky Mountains, Dr. James! — U Plant 3-4 inches hicjh. 

 Caudex mostly subterranean. Leaves ou slender petioles, half the lengtii of 

 the peduncle. Head of flowers an inch in diameter: corolla purple; the 

 vexillum ovate, covering the wings and the keel. 



12. T. megacephabim (Nutt.) : hairy ; stem ascending ; leaflets 5-7, ob- 

 long-cuneiform, raucronate, spinubse-denticulate; stipules large, foliaccous, 

 ovate, spinulose-serrate ; head of flowers (very large) ovate-globose ; calyx 

 with a very short tube ; the teeth setaceous, very long, but shorter than the 

 corolla ; vexillum large, broad below and lolded round the other petals ; le- 

 gume stipitate. Hook. — Nalt.gen.2. p. 105; DC. prodr. 2. p.20i; Hook. 

 Ji. Bor.-Am. 1. p. 132. Lupinaster macrocephalus, Pursh, Jl. 2. p. 479, t. 23. 



Head-waters of the Missouri, Lexris ; and on moist elevated ground near 

 the sources of the Oregon, Douglas. April-May. — 1i About a foot high. 

 Leaves on long petioles. Flowers nearly 2 inches long. Teeth of the calyx 

 silky-plumose. Corolla ochroleucous; the keel purplish. Stamen-tube coales- 

 ccnt below with the wings and keel. Legume 2-see.ded. 



-A 13. T. reflp.xum (Linn.): pubescent; stem ascending or decumbent; 

 leaflets obovate or obovate-oblong, sometimes emarginate, crenulate-serrulate ; 

 stipules foliaceous, ovate-lanceolate, acuminate ; heads of flowers subumbel- 

 iate, dense ; calyx hirsute, parted nearly to the base ; the teeth subulate, half 

 as lono^ as the corolla ; vexillum broadly ovate ; legume 3-5 seeded. — Mich.v. ! 

 fl. 2. p. 59 ; P7irsh, fl. 2. p. 447; Ell. sk. 2. p. 282 ; DC. prodr. 2. p. 201 

 "(not of Waldst. ^- lut. ^ DC. I. c. p. 197) ; Hook. hot. mag. t. 3171. T. 

 Pennsvlvanicum, IVnid.? ; DC.l.c.7 



Meadows, and alluvial soils, North Carolina ! to Florida, & Western States ! 

 to Louisiana! and Texas! April-June. — (l) ? Stem 12-18 inches high. 

 Heads of flowers larger than in Red-Clover : ^peduncles about twice as long 

 as the head. Flowers handsome : vexillum rose-rt d, wings and keel white. — 

 Buffalo Clover. 



14. T. stolonifermn {VLvihl.) : glabrous; stem creeping, with short axilla- 

 ry erect flowering branches; leaflets broadly obcordate, crenulate-denticulate ; 

 stipules membranaceous, ovate-lanceolate, acuminate, foliaceous ; heads of 

 flowers loose, umbellate ; calyx nearly glabrous; the teeth twice as long as 

 the tube, subulate, less than half the length of the corolla ; legume 2- (rarely 

 3-) seeded. — Muhl. cat. p. 70 ; Eaton, man. ed. 7. p. 564 ; Beck, hot. p. SO. 



Fields and open woods, Kentucky ! Ohio, Missouri ! &c. May-June. — 

 11 Stems G-10 inches long, several from one root. Leaflets of the flowering 

 branches 6-10 lines wide. Heads an inch or more in diameter Flowers 

 white: vexillum a little tinged with purple, obovate. — Allied to the preceding 

 s'pecies.-^ Running Buffalo Clover. 



