LEGUMINIFER&. 37 
teeth: fruiting calyces reflexed, with a membranous ovoid tube 
and curved teeth; barren calyces produced above the fertile flowers, 
after the corolla has fallen, at first appearing like a tuft of white 
fleshy tapering fibres, which press back the fertile calyces against 
the peduncle—afterwards, 5 points or teeth shoot out from the apex 
of the fleshy fibres, representing the calyx-teeth. Petals very long 
and narrow, cohering so as to form a tube; standard very slightly 
spreading, streaked with purple lines; wings shorter than the 
standard, but longer than the keel. Pods globular, compressed, 
with a single dark brown shining seed. Plant pale bright-green, 
very hairy. 
This plant is remarkable for the pods being generally matured 
beneath the ground. At first both the peduncles and flowers are 
erect, i.e. parallel to the prostrate stems; but after flowering, the 
peduncle bends at the extremity, so that its apex is directed ver- 
tically downwards. At this time the growth of the barren calyces 
presses back the spreading fertile ones, until these are so much 
reflexed as to be parallel to the peduncle in a direction contrary to 
their original one, with their mouths directed away from its apex, 
and consequently towards the sky: preserving this direction, they 
bury themselves in the earth, and become rooted beneath the surface 
by the filaments issuing from the apex of the head, while the reflexed 
barren calyces protect the pods in their passage downwards. 
Subterranean Trefoil. 
French, Z'réfle Souterrain. 
Section II].—LAGOPUS. Koch. 
Heads of flowers sub-globose, oblong, or cylindrical. Flowers 
numerous, sessile or sub-sessile. Pedicels without bracts at the 
base. Calyx not becoming vesicular in fruit, with a more or less 
conspicuous callous ring in the throat, or a circle of hairs; calyx- 
teeth generally ciliated, equal, or the lower one largest. Corolla 
purple, rose, white, or ochreous, persistent, marcescent, usually 
shrivelling. Pod sessile within the calyx, 1-seeded. 
SPECIES IL—TRIFOLIUM PRATENSE. Linn. 
Pirate CCCXLVII. 
Rootstock branched, producing tufts of leaves, and straight, 
erect or somewhat decumbent, slightly branched or simple stems. 
Leaves distant, with oval or elliptical leaflets, only those of the lower 
leaves notched at the apex, finely denticulate on the margins, or 
nearly entire. Stipules membranous, with numerous nerves which 
anastomose near the margin, adnate for two-thirds their length, with 
