186 



LEGUMINOS^. LXX. Trifolium. 



peduncles ; involucre cup-shaped, truncate, veiny, and toothed, 

 length of flowers ; stipulas ovate, short ; calyxes membranous, 

 the segments setaceous, S-5-parted, length of corolla. 1/. H. 

 Native with the two preceding species. Flowers purplish. 



Cup-bearing Trefoil. PL prostrate. 



57 T. involucra'tum (Willd. spec. 3. p. 1372.) plant quite 



of Europe. T. hispidum, Desf. atl. 2. p. 200, t. 209. f. 1. 

 Flowers rose-coloured. Plant hairy. 



Far. ft, ptctuin (Ser. mss. m D. C. prod. 2. p. 196.) leaflets 

 denticulated, spotted with red. T. pictum. Roth, cat. 2. p, 201. 

 Savi, obs. trif. p. 27. 



Far. y, pygmce'um (Ser. 1. c.) stems .almost simple ; head 



smooth; stems straight, erect ; petioles long ; upper leaflets ob- solitary, terminal. Native of the Pyrenees, about Prades. 

 long-linear, sharply-toothed; stipulas membranous, narrow, linear, Hairy Trefoil. Fl. July, Aug. Clt. 1817. PI. -2- to 1 foot, 



very acute ; heads pedunculate, hemispherical, girded by an or- 64 T. polyce'phalum (Ser. mss. in D. C. prod. 2. p. 196.) 



bicular, toothed involucrum ; bracteas bifurcate, but multifid ac- plant hairy, prostrate ; leaflets cuneate-obovate, entire ; stipulas 

 cording to Kuntli ; segments of the calyx setaceous, longer than lanceolate, the cauline ones free ; heads of flowers very numer- 

 ous, ovate ; calyx very hairy, the segments nearly equal and 

 flexile, shorter than the corolla ; vexillum length of corolla; le- 

 gume villous, 2-seeded ; seeds cordate-reniform. 1/ . G. Na- 



the tube, and much shorter than the corolla ; ovary stipitate, 5- 

 G-ovulate. 0. H. Native of Mexico, near Valladolid, at the 



height of GOOO feet. H. B. et Kunth, nov. gen. amer. 6. p. 



'i02. Kunth, pi. legum. 186. t. 53. Flowers purplish. Stigma tive of the Cape of Good Hope. Perhaps T. lanatum of Thunb. 



prod. 136. 



Many-headed Trefoil. PL prostrate. 

 65 T. PAuciFL6RUM(d'Urv. enum. pi. arch. p. 94.) stems trail- 

 ing, villous, much branched at the base; petioles very long; 

 lated ; stipulas broad, lanceolate, cuspidate ; calyxes bractcate, leaflets cuneated, very much dilated at the apex, usually emar- 

 the teeth awned and equal, shorter than the corolla; heads of ginate, entire ; stipulas scarious, ciliated, subulate at the apex; 



small, oblique, rather linear, obtusely papillose. 



Involucraicd Trefoil. PL 1 foot. 



58 T. MUCRONA TUM (Willd. herb, ex Spreng. syst. 3. p. 208.) 

 stem ascending, 1 -leaved; leaflets linear, mucronate, serru- 



flowers roundish. %, H. Native of New Spain, 

 il/wcrowa/e-hafletted Trefoil. PI. ascendin^x. 



spikes solitary or twin, few-flowered, on short peduncles ; 

 calyxes villous, the segments setaceous, and shorter than the 



59 T. microce'fhalum (Pursh, fl. amer. sept. 2. p. 478.) stem corolla. ^ . H. Native of Turkey, near Constantinople. Flowers 

 ascending, pubescent ; leaflets obovate, emarginate, denticu- purple. 



Few- flower edTveioW. PI. trailing. 



66 T. HuMBo'i.DTii (Spreng. syst. 3. p. 213.) heads some- 

 what umbellate, 8-flovvered ; calyxes hairy, at length deflexed, 

 the teeth lanceolate, shorter than the corolla ; stipulas oblong- 

 lanceolate, nerved ; leaflets obovate-roundish, denticulated, 



lated; stipulas ovate, acuminated ; heads of flowers small, few- 

 flowered, on long peduncles ; flowers sessile in the heads ; leaf- 

 lets of involucrum ovate, awned ; calycine segments awned, 

 length of corolla. '2;, H. Native of North America, on the 

 banks of Clark's river, and of California. Flowers pale-purple. 



Small-headed Trefoil. PL 1 foot. 



CO T. pa'llidum (Waldst. et Kit. pi. rar. 1. p. S5. t. 3Q.) 

 stems diffuse ; leaflets ovate-roundish, denticulated ; stipulas 

 pilose, broad, setaceous at the apex; heads of flowers globose, 

 rather hispid, hardly pedunculate ; calycine segments setaceous, 

 pilose, unequal, shorter than the monopetalous corolla ; seeds 

 ovate, compressed, yellow, globose. ©. H. Native of Hun- 

 gary, in meadows and corn-fields. This plant is nearly allied 

 to T. j^ratense^ but the heads are smaller, the flowers are white, 

 and the vexillum is emarmnate. 



nerved. 0. H. Native of Quito. T. pauciflorum, Willd. herb. 



Humholdt's Trefoil. PI. prostrate. 



67 T. Ciierle'ri (Lin. amcen. 4. p. 286.) stem procunibent; 

 leaflets obcordate, nearly entire ; stipulas broad, ending each in 

 a linear incurved point ; heads globose, hispid, sessile : stipulas 

 roundish; calycine segments hispid, longer than the corolla; 

 seeds ovoid, compressed. ©. H. Native of the south of Europe. 

 Savi, obs. trif. p. 23.— Barrel, icon. 859. Desf. ath 2. p. IS!"- 

 Flowers white. 



Cherler's Trefoil. Fl. May, June. Clt. 1750. Ph procuni- 



clu' 



P« /^-flowered Trefoil. Fl. Ju. Jul. Clt. 1803. PL diffuse, bent. 



61 T. DiFFu'suM (Ehrh. beitr, 7. p. 165.) plant soft, villous, 68 T. sph^roce'piialon (Desf. fl. atl. 2. p. 201. t. 209. ex 



and glaucous ; stems diffuse ; leaflets ovate-lanceolate, obtuse or sive of the synonyme of Barrelier,) stems diffuse; leaflets obcor- 



refuse; stipulas narrow, ending in a linear-lanceolate acumen ; date or obovate ; stipulas lanceolate, acute ; heads of flowers glo- 



heads of flowers ovate, rather hispid ; calycine segments seta- bose, hispid, sessile, involucrated ; calycine segments setaceous, 



ceous, very villous, straight, equal, shorter than the monopeta- longer than the corolla. 0. H. Native of the north of Africa* 



lous corolla ; legume circumcised, 2-seeded ; seeds bay-co- 



Mascar. Flowers white. Plant villous. 



loured, irregularly obcordate. ©. H. Native of Hungary, in Round-headed Trefoil. Fl. June, July. Clt. 1820. PL \ f*^^' 



sandy places, and about Paris. Wuldst. et Kit. hung. 1. p. 40. 69 T. rotundifolium (Smith, fl. grsec. t. 747.) stems simple 



t. 50. T. cihosum, Thuill. fl. par. ed. 2. p. aSO. Flowers pur- ^"" " " " 



pie. Perhaps a variety of T. hirtum. 



diffuse ; leaflets nearly orbicular, toothed, hairy ; calyx very 



halrj^, longer than its teeth, which are short, lanceolate, and up" 



right : heads of flowers globose, terminal, with lanceolate brac- 



62 T. heteropiiy'llum (Tratt. arch. 1. p. 26. with a figure,) teas. ©. H. Native of the Morea. Corolla twice the lengfD 



^# 



Fl. July, Aug. Clt. 1801. PI. 1 foot. 



stems procumbent, diflfuse, very straight, lower leaflets obcor- 

 date, upper ones ovate or lanceolate ; stipulas ovate, awned ; 

 heads of flowers globose, solitary, dense; calycine segments 

 nearly equal, about equal in length to the tube of the monope- 

 talous corolla. 



%. H. 



iEtscher 



Flowers red. 



Farlahle-lcavcd Trefoil. PI. procumbent. 



63 T. ii/rtum (All. auct. p. 20.) stem erect; leaflets ob- 

 ovate, cuneated, nearly entire ; lower stipulas narrow, each end- 

 ing in a long acumen, upper ones short, and very broad ; heads 

 of flowers nearly globose, hispid ; calycine segments very lono-, 

 about equal in length to the corolla, hardly unequal ; seeds 

 large, regularly ovate, very blunt. Q. H. Native of the south diffuf 



of the calyx, elegantly variegated with pale purple and ^^'"l^r 

 its petals distinct ; germ hairy. The whole plant clothed wrt 

 white hairs. 



Bound-leaved Trefoil. Fl. Mav, July. PI. ^ foot. 



70 T. GLOBosuM (Lin. spec. 1081.) plant very villous; stem 

 diffiise, slender, branched; leaflets obovate-cuneiform, som^ 

 what denticulated ; stipulas lanceolate, nerved ; heads of ^o^ve 



orolla 



globose, villous, stalked ; the superior calyxes destitute o ^ 

 seeds egg-shaped, compressed, large, black. 0- H. Nativ 



corolla, the lower ones about equal in length to the coro » 



Svria, Arabia, and Italy. Savi, obs. trif. p. 16. Flowers ^vhite. 

 G/oio.^e-headed Trefoil. Fl. June, Aug. Clt. 1713. *• 



* foot. 



se 



1 



» 2 



