SUPPLKMENT.— LEGUMLNCSyE. 691 



ovate, acuminata, half as lone; as tlie loaflets; heads broadly ovale, o hi use, 

 on lono: pt'dtiiiclfs; flowers sessile; ealyx densely clothed with silky hairs; 

 the teetii long, si'taeeous, slraif;ht, nearly c(|ual, as hmg as the curolla. — 

 Hook. (^' Am.! hot. Becchei/, .sujrpl. j>. .'J.'JO. 



California, Douglas! — A larcer and stonier plant than the preceding; ilie 

 stipnles i to } of an inch in length; the heads more than an inch long. Co- 

 rolla apparently purple. Hook, t^- Arn. — We fear this may prove to be only 

 a luxuriant variety of T. Macra-i. 



8. T. longipes. — Oregon, Douslas! 



13. T. rt'Jle.ru7n.— K\cl. syn. T. Pennsylvanicum, IVilUL, which, from 

 the specimen in his herbarium, may, we think, be referr<;d to T. medium. 

 We do not find suflicient proof of its American origin. 



20 (a). T. macrocali/x (Hook.): slightly hairy; stems ascending, slender; 

 leaves on slender petioles; leaflets obovate-cuneiform, retuse, serrulate; sti- 

 pules ovate-lanceolate; heads rather few-flowered, subglobose, on long pe- 

 duncles; flowers at length deflexed, pedicellate ; calvx broad, persistent, reti- 

 culated, very deeply bilabiate; the lower lip minute, linear-subulate; the 

 upper 4-cleft, nearly as long as the persistent and scarious corolla; vexillum 

 and wings laciniate-dentioulate at the apex; the keel very small ; legume 

 7-9-seeded, ciliate above. — Hunk. ! ic. pi. t. 275. 



Texas, near Bexar, Berlandier I — A singular species, apparently annual, 

 about a span or sometimes nearly a foot high. Flowers large in projjortion, 

 brown when dry: vexilkmi sessile, broadly ovate; the sides deflexed, so as 

 nearly to cover the other petals. — A very singidar species. 



22. T. variegalum. — Oregon, Dow g-/as .' — To var. /J. add syn. T. melan- 

 anthum. Hook. Sf Am. ! hot. Beechcy, supjjl. p. 331. — A larger plant than 

 the T. variegatuin, with the flowers apparently dark jjurple throughout ; 

 perhaps a distinct species. 



23. T. fimbriatum. — This, with T. spinulosum, Doiis^l. and our T. hetero- 

 don (which w'ould be the most appropriate name liir the species) with its 

 varieties, are all forms of one s])ecies. This view is tfiken by Hooker, who 

 (in hot. Beccliey, suppl.) has characterized several varieties. 



25 (a). T. microdon (Hook. & Arn.) : glabrous, somewhat decumbent, 

 branching; leaflets obcordate, sharply serrate ; stipules ovate, acuminate, 

 entire; involucre hemispherical, many-cleft, nervose, rather shorter than 

 the dense head ; the segments 3-5-clelt, spinulose-serrate ; teeih of the 

 calyx very short, triangular-ovate, acute, ciliate-serrulate; legume obliquely 

 obovate, 1-seeded. Hook. Sf Am.! hot. misc. 3. p. 180, if hot. Beechey, 

 suppl. p. 330, /. 79. 



California, Douglas ! — Stems a foot or more in length. Also a Chilian 

 species. 



25 {h). T. ohlusijlorum (Hook.): pubescent; stem elongateil ; leaflets 

 obovate-lanceolate, spinulose-denticulate; sti])ules lanceolate, deeply incised, 

 the teeth spinosc ; peduncles axillary, twice the length of the leaves; involu- 

 cre small, rather flat, reticulated, incisely spinose, one-third the length of the 

 rather large and loose head ; teeth of the calyx subulate-si)inose, entire, as 

 long as the tube, much shorter than the corolla; vexillum obi use, somewhat 

 toothed at the apex, ovary obliquely obovate, 1-2-seeded. Hook. ic. pi. t. 

 281 ; Hook. <.V -'^>''^- ^^'' Beechey, suppl. p. 331. 



California, Douglas. — A foot or more high. Corolla long, pale, with a 

 dark spot on the keel. Wings very narrow, almost as long as the vexillum. 

 Flowers large in proportion to the involucre. Hook, t^ Arn. 



