PL ex. cal. 63. LEG UMINOSiE. 366. Trifolium. 59& 
3. Trifolium suffocatum . Buried trefoil. 
Head roundish, sessile, lateral and terminal ; calyx-teeth 
lanceolate, acute, recurved, longer than the corolla ; legu- 
men 2-seeded. 
Trifnlium minimum supinum, Rail Hist. Pl. 1,992. 
Trifolium suffocatum, Lin. Mant. 2, 276. 
Sandy sea-shores ; annual; June and July. 
Stem short, tortuous; petioles long; leaflets blunt; sti- 
pules membranaceous, broad, divaricating ; flowers sessile, 
glomerated; corolla white. — Leaves alone appear above the 
sand. 
c. Calyx villous or hirsute , not inflated after flowering ; co- 
roll a- tube very long ; standard deciduous ; flowers white 
or reddish ; fruit covered with a hardened central invo- 
lucrum. 
4. Trifolium sulterraneum. Underground trefoil. 
Head villous, 4 or 5 -flowered ; coma or involucrum cen- 
tral, reflected, stiff, stellate, covering the fruit. 
Trifolium pumilum supinum, flosculis longis albis. Rail Syn. 327,2. 
Trifolium subterraneum, Lin. S. P. 1080. 
Sandy and gravelly places ; annual ; May. 
Stem prostrate, depressed, spreading; leaves hairy; sti- 
pules ovate, lanceolate; peduncles in fruit deflected into the 
ground ; calyx tubular; teeth hairlike, nearly equal ; corolla 
slender, white; legume n 1 -seeded. 
d„ Trifolium. Calyx villous or hirsute , not inflated cflter 
flowering; corolla l-petaled ; flowers spiked, perennial. 
5. Tr folium pratense. Meadow trefoil. 
Spike close, ovate ; four of the calyx-teeth equal ; corolla 
unequal ; stipules ovate, awned ; leaflets ovate, scarcely cut ; 
stem ascending. 
Trifolium pratense purpureum, Raii Syn. 328. 
Tri folium pratense, Lin. S. P. 1082. 
Marie grass. Purple clover. Honeysuckle trefoil. 
Fields and pastures; perennial; May to September. 
Stem rather branchy ; leaves nearly bald, ribs purplish 
and anastomosing near the margin ; spike solitary, sessile ; 
calyx 10-ribbed ; standard longer than the wings. 
(3. sativum. Stems many, lar'ge, more upright; leaflets 
oblong, oval, hairy ; peduncles mostly in pairs. 
Broad clover. 
y. album. Flowers cream-colour. 
