DIADELPHIA— DECANDllIA. Trifollum. 301 



into a long tube. Legume in the permanent tube of the calyx, 

 roundish, thin, containing a solitary seed. 



6. T. ochroleucum. Sulphur-coloured Trefoil. 



Flowers in a solitary, terminal, hairy head. Stem erect, 

 downy. Lower leaflets inversely heart-shaped. Lowest 

 calyx-tooth thrice as long as the rest. 



T. ochroleucum. Linn. Syst. Nat. ed. 12. tj. 3. 233. Syst. Veg. 



ed. 14. 689; syn. wrong. Willd. v. 3. 1372. Fl. Br. 784. Engl. 



Bot. V. I7.t.\ 224. Curt. Lond. fasc. 6. <. 49. Mart. Rust. t. 35. 



Dicks. H. Sice. fasc. 3. 9. Afzel. in Tr. of Linn. Soc. v. 1 . 229. 



Jacq. Austr. t. 40. Ehrh. PL Select. 19. 

 T. squarrosum. Linn. Sp. PL 1082; excluding thesynonyms. Willd. 



V.3. 1370. 

 T.n.378. HalLHisLv.\.i64. 



T. pratense hirsutum majus, flore albo-sulphureo. Raii Syn. 328. 

 T. lagopoides annuum hirsutum, pallide luteum seu ochroleucum. 



Moris. V.2. 141. sec^ 2. ^. 12./. 12; separate calyx bad. 



In pastures, fields, and thickets, on a dry gravelly, or chalky, soil. 



Perennial ? June, July. 



Root somewhat branched at the crown. Stems usually several, 

 erect, 12 or 18 inches high, scarcely branched, leafy, round, 

 clothed with numerous, fine, upright, tawny hairs. Leaves re- 

 mote, the two uppermost only opposite ; lower ones on very 

 long stalks, their leaflets small, rounded, inversely heart-shaped ; 

 upper on shorter stalks, with longer and narrower leaflets; all 

 entire, striated, finely hairy, of a darkish green. Stipulas lan- 

 ceolate, simply ribbed, hairy, long and narrow, combined some- 

 times for more than half their length. FL pale sulphur-co- 

 loured, in roundish, dense, solitary, terminal heads, each on a 

 hairy stalk, between the two uppermost leaves. Keel strictly 

 ofonepelal. CaZ. cylindrical, deeply furrowed, with slender, 

 hairy, straight teeth, all unequal, but the lowermost is thrice 

 the length of the rest, giving the whole head, when in seed, a 

 bristly aspect. In this state it seems not to have been much 

 noticed by English botanists j so that when found in a culti- 

 vated field, in autumn, by the late Sir Thomas Gage, it was 

 thought a new species, but proved on comparison the T. squar- 

 rosum, as well as ochroleucum, of the Linnsean herbarium. Le- 

 gume membranous. Seeds solitary, yellow. 



The synonym of Fuchsius, Hist. t. 818, and Ic. 472, cited in FL 

 Br. belongs to the foreign T. montanum. 



T. ochroleucum has not been turned to any agricultural use, nor 

 does it appear to possess any valuable properties. The herbage 

 is very sparing, and not lasting. I suspect the plant to be an- 

 nual, that being the true reason why Mr. Curtis could never 

 preserve it in his garden. 



