DIADELPHIA— DECANDRIA. Trifolium. 301 



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

 roundish, thin, containing a solitary seed. 



6. T. ochrolcucum. 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. Sijst. Nat, ecL 12. v. 3. 233. Syst. Veg. 



ed. 14. 689; sijn. wrong, mild. v. 3. 13/2. Fl. Br. 784, Engl. 



Bot.v. 17. t. 1224. Curt. Lond. fasc. 6. t. 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. PI. Select. 1 9. 

 T. squarrosiim. Linn. Sp. PL \0S2; excludim^ the synonyms. WUld. 



t;. 3. 1370. 

 T. n.378. Hall. Hist. V. 1.164. 



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

 T. lagopoides annuum hirsutum, pallide luteum seu ochroleucum. 



Moris. V.2. 141. sect. 2. t. 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 leafiets ; 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 Jicads, each on a 

 hairy stalk, between tlie two uppermost leaves. Keel strictly 

 of one petal. G//. cylindrical, deej)ly furrowed, with slender, 

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

 the lengtli of the rest, giving the whole iiead, when in seed, a 

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

 noticed by Knglisli botanists ; so that when found in a culti- 

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

 thought a newsj)ecies, but proved on comparison the 7'. s(/uar- 

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

 gume membranous. Seeds solitary, yellow. 



The synonym of Fuclisius, Hist. t. 818, and /( . 172, cited in 77. 

 Dr. belongs to the foreign 7'. montanum. 



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

 does it appear to possess any valuable pro|)erties. 'i'lie herbage 

 is very sparing, and not hLsting. I suspect tlie plant to be an- 

 nual, that being tiic true reason why Mr. (.'urtis could never 

 preserve it in his garden. 



