DIADELPHIA— DECANDRIA. Trifolium. 309 



taller than the leaves. Heads o^ flowers small, solitary, erect. 

 Pet. rose-coloured, small and slender. Cal. 2-lipped, downy j 

 the upper side, after flowering, becoming greatly enlarged, mem- 

 branous, reticulated, inflated, and bent downward, terminating 

 in 2 teeth, and assuming a blood-red colour, so that the whole 

 head, in that state, much resembles a Hautboy Strawberry. Le- 

 gume roundish, small in the bottom of the calyx, containing 

 2 seeds. 

 Cattle eat the herbage, but its produce is late and inconsiderable. 



***** Standards deflexed, dry and memhranous. 

 16. T. pi'ocumbejis. Hop Trefoil. 



Heads oval, many-flowered. Standai'd finally deflexed, fur- 

 rowed. Stems spreading or procumbent. Common foot- 

 stalk longest at the base. 



T. procumbens. Linn. Sp. Pl.\mS. inild. v. 3. ]3S3. Fl.Br.792 



and \ 403. Comp. ed. 4. ]24. Engl. Bat. v. \4. t. 945. Hook. 



Scot. 2\9. Grev. Edin. 1 62. Fl. Dan. t. 796. Ehrh. Herb. 93. 

 T. agrarium. Huds. 328. Curt.Lond.fasc.3.t.4b. Mart. Rust. 



f. 121. 

 T. n. 363. Hall.Hist.v.l. 159. 

 T. pratense luteum, capitulo lupuli, vel agrarium. Rail Syn. 330. 



FailLFar. 196. f. 22./. 3. 

 T. pratense luteum foemina, flore pulchriore, sive lupulino. Bauh. 



Hist.v.2.38\.f. 

 T. agrarium luteum, capitulo lupuli majus. Moris, v. 2. 142. sect. 2. 



t.\3.f.l. 

 Lupulinum. Riv. Teirap. Irr. t. 10. f. \. 



In dry gravelly fields and pastures. 



Annual. June, July. 



Root short, but strong and woody. Stems sjireading widely, part 

 of them procumbent, the central one, if not cropped by cattle, 

 according to the Rev. Dr. Beeke's observations, erect, but this 

 I have seldom been able to verify ; they are leafy, hairy, but 

 little branched, from 4 to 10 or 12 inches long ; round below ; 

 angular above, where they turn more or less upwards. Leaf- 

 lets obovate, notched, toothed, veiny, smooth, a little glaucous. 

 Common footstalks smooth or a little hairy, various in length, 

 but always longer than the partial stalk of the central leaflet. 

 Stipidas half-ovate, acute, entire, ribbed, often fringed. Heads 

 axillary, solitary, ovate, or roundish, erect, on partly hairy stalks, 

 which are angular, not very stout, often reaching beyond the ad- 

 joining leaf. Fl. about 50. Cal. a little hairy, bell-shajed, with 

 very unequal, direct, awl-shaped teeth. Pet. bright yellow, 

 turning tawny as the seed ripens, all permanent ; standard finally 

 deflexed, dilated, strongly furrowed, dry and membranous, shel- 



