MIMOSACEAE | ^ 657 
3. L. microphylla (Dryand.) Britton. Stem with rather slender curved prick- 
les: blades of the leaflets narrowly elliptie to var ee 3.5-7 mm. long: 
upper peduncles mostly shorter than the leaves: pod mostly 9- oA E long, 
much Pads than the peduncle: seed fully 4 m m. one "LS. angus .& 
angustata Britton M. microphylla Britton] —Dry oe a a 
du aie, Fla. to Tex., Tenn., and Va.—Spr.—fal 
4. L. angustisiliqua Britton & Rose. Stem with weak rather distant prickles: 
. lon edu h 
blades of the leaflets od oe 2.5-3.5 mm. long: peduncles shorter than 
the leaves: pod 6- . long, nearly ‘or quite as ad as the peduncle: seed . 
about 3 mm. long. — Pinelands, S pen. Fla.—All year 
5. L. manii Small Stem and leaflets as in L. microphylla: ape 
peduncles mostly longer than the leaves: pod mo ue 3.5-8 em. long, about a 
long as the peduncle or somewhat longer: seed fully 3 mm. long. [S. gina 
eee Chapm. |—Pinelands, Coastal Plain, Fla. to to Tex. and N. C.—Spr 
9. MIMOSA L. Shrubs or trees, or herbs, usually prickly. Leaves 2- 
pinnate: leaflets few or numerous, often sensitive. Spikes globose or cylindric. 
Calyx-lobes minute. Petals united to the middle or above it, or rarely distinct. 
Filaments distinct or nearly so., Pods clustered, flat, jointed.—About 325 spe- 
cies, mostly natives of warm and tropical regions.—Spr.-sum. or all year S. 
Peduncles shorter than the leaves: stamens as ay as the d with pune: 
like bristles in the margins, the faces glabro pudic 
gee as long as the leaves or longer: aa mens twice as 
as the corolla-lobes: pod bristly- pubescent all over. 2. M. strigillosa. 
dica L. Plant usually partly woody, the branches with loosely spread- 
hairs, pata Sani hirsute: leaves with 2 approximate pairs of pinnae 
ing 
or rarely with a single pai ; leaflets mostly 
6-12 mm. long, pen is ' appressed stiff era. Lui, | í 
hairs: spike rose-purple: calyx minute: See is 
ae about 3 mm. long: pod mostly 1-2 Nea 
mm RENAN 
long, 3 
ei between the joints: seed 2-2. 
long.—Waste-places, cult. grounds, and road- 
= sides, Coastal x" iur to Tex. Nat. o 
trop. Am.— (WW. I., Mex., C. A., 8. A., O. W 
2. M. strigillosa T. & G. Plant herbaceous, 
the branches i appressed hairs: leaves 
with 5-8 pairs'of pinnae; leaflets smaller 
than those of M. pudica, with minute hairs 
or glabrous: spike deep-pink: calyx nearly 
: about 2 mm. 1 
0.5 mm. long: corolla ut on j 
pod mostly 2-3 cm. long, 5 as mm. wide, sometimes slightly sige dA, on the 
central suture, about long.—Stream- banks, ha eks, pinelands, and 
meadows, Coastal Plain pur rarely adj. provinees, Fla. to "Tex., wee and 
Ga.— (4 fex.) 
10. NEPTUNIA Lour. Perennial unarmed diffuse, prostrate, or floating 
plants. Leaves 2-pinnate: leaflets numerous, small. Spikes globose or ellipsoid, 
yellow or came yellow. Calyx-lobes shorter than the tube. Petals distinct 
or partly united. Filaments distinct or nearly so. Ovary short-stipitate. Pod 
oblique, ara only slightly so—About 10 species, natives of America, 
Asia, and Australia. 
a deltoid : pod-body somewhat rhombic-elliptic, usually very iequilateral, 
metimes curved, pubescent. 1. N. lutea. 
42 
