CLASS XVI. ORDER X. 
59 
corolla falcate, bending back the apex of the banner; germ sheathed at the 
Dase; legume coriaceous, many-seeded, (ground-nut.) 
Amphicar''''pa. Calyx bell-form, 4-toothed, obtuse, and naked at the base ; 
petals oblong, banner broader, close pressed upon other petals, sub-sessile ; stig- 
ma capitate; legume flat, stipid; seeds 2 to 4. (wild bean-vine.) 
RoBi^NiA. Calyx small, bell-form, 4-cleft, upper division 2-parted; banner 
large, reflexed, roundish ; legume compressed, elongated, many-seeded; seeds 
compressed, small, (locust-tree.) ^. 
Galac'tia. Calyx 4-toothed, with 4 bracts at the base ; petals oblong, standard 
incumbent; anthers oblong ; stigma obtuse ; germ on a naked stipe; legume 
terete, many-seeded. 
Vexilla'ria. Calyx surrounded at the base by 2 longer bracts, 5-cleft; corolla 
resupinate; standard large, covering the wings; style dilated at the apex; 
legume linear, compressed, straight, 2-valved, many-seeded, (butterfly-weed.) 
Astrag'^alus. Keel obtuse ; legume more or less completely 2-celled ; lower 
suture inflexed. (milk vetch.) 
Galega. Calyx with subulate teeth, nearly equal ; standard large, roundish, 
pubescent without, reflexed, spreading ; legume compressed, linear, many- 
seeded, (goat's rue ) 
Medica'go. Keel of the corolla deflected from the standard; legume com- 
pressed, spiral, (lucerne clover.) 
Colu'tea. Calyx 5-cleft with the keel obtuse; style bearded on its back 
through its whole length ; legume inflated, opening on the upper suture at the 
base, (bladder senna, bush locust.) Ex. 
GLYcyRRHi'zA. Calyx tubular, equal 5-parted, spurred at the base; standard 
erect, the sides reflexed; wings spreading ; legume ovate; flowers in a raceme, 
(liquorice.) S. 
OxYTRo'pis. Keel mucronate; legume with the upper suture inflexed. (S*. 
Indigo'fera. Calyx spreading ; keel with a subulate spur both sides ; legume 
linear, small, terete or quadrangular, (indigo.) S. 
B. Legume without transverse divisions or partitions ; seeds few ^ or single. 
Melilo'tus. Flowers racemed; calyx tubular, 5-toothed; keel simple, shorter 
than the wings and banner; legume rugose, longer than the calyx, or about as 
long, (melilot clover.) 
Trifo'lium. Flowers sub-capitate; legume included in the calyx, not opening 
by valves, 1 to 4-seeded ; leaves always ternate. (clover.) 
Psora^lea. Calyx 4-cleft, lower segments elongated ; legume the length of 
the calyx, 1-seeded, beaked. S. 
C. Fruit or loment in several joints, or in a single-seeded piece. 
Hedys'^arum. Calyx 4-cleft; keel of corolla transversely obtuse; loment 
many-jointed; joins 1-seeded, truncate, compressed, generally hispid; plants 
mostly with ternate leaves, (bush clover.) 
Lespede'za. Calyx 5-parted, 2-bracted, divisions nearly equal: keel obtuse; 
legume 1-seeded ; leaves always ternate. (bush clover.) 
w^Eschynom^'ene. Calyx 5-cleft, upper lip 2-cleft, lower lip 3-cleft ; stamens in 
2 equal sets; loment compressed, one suture straight, the other lobed. 
Stylosan'^thes. Calyx tubular, very long, bearing the corolla ; loment 1-2- 
jointed, hooked. 
Ci'cER. Calyx 5-parted, of the length of the corolla, 4 upper divisions resting 
on the banner; legume turgid, 2-seeded. (chickpea.) Ex. 
ZoR^NiA. Calyx inferior, bell-form, 2-lipped; banner cordate, revolute; an- 
thers half oblong, half globose; loment jointed, hispid. S. 
Coronil'la. Calyx 2-lipped ; petals with claws ; loment teretish, jointed flow- 
ers in umbels ; seeds generally cylindric. (coronilla.) Ex. 
Sesba^nia. Calyx 5-toothed ; legume terete jointed. Ex. 
D. Stamens united in one set. 
Amor^'pha. Calyx somewhat bell-form, 4 or 5-cleft ; banner ovate, concave; 
wings and keel 0; legume 1 or 2-seeded, falcate, (false indigo.) 
Lupi'n'js. Calyx 2-lipped ; anthers, 5 oblong and 5 roundish ; legume cori- 
aceous, torulose. (lupine.) 
Crotala'ria. Corolla with the banner cordate, large keel acuminate, the 
membrane formed by the united filament, has a fissure on. the back ; style curv- 
ed ; legume pedicelled, turgid, (rattle-box.) 
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