the young branches, petioles, and peduncles very strigose ; stipules ovate,
striate, persistent; pinna; about 5 pairs ; leaflets 10-14 pairs, oblong-linear,
nearly glabrous; peduncles very long, solitary; heads oblong when old;
legumes broad, very hispid, 2-3-jointed, the lower margin sinnate, or often
by abortion 1-jointed.
Banks of streams, &c. Tampa Bay, also in East Florida, Dr. Leavenworth
! Banks of the Mississippi, Louisiana, Dr. Carpenter! Dr. Hale !
Arkansas, Dr. Leavenworth! Texas, Drummond! (2nd Coll. 157, 158,
159.) July-Aug.—Stems extensively procumbent, occasionally armed with
a very few short recurved prickles : no prickles at the base of the petioles:
the branches, petioles &c., and sometimes the lower surface of the leaves,
very densely strigose with long whitish scaly hairs; when old, glabrous or
sparsely strigose. Leaflets obtuse, scarcely mucronate, inequilateral, slightly
falcate, Peduncles 5-6 or sometimes 10 inches long. Heads at first globose;
the flowers rose-color. Petals, especially when rather-old, minutely muricate
towards the summit externally. Legumes when of three joints oblong and
rather indistinctly jointed, when single-jointed ovate, oblique.—Allied apparently
to M. humilis, H. B. Sy K.
t Doubtful Species.
2. M. geminata (DC.): stems diffuse and, with the petioles, aculeate;
leaves bipinnate, the pinnas 2-pairs, the leaflets 15-20 pairs; heads axillary,
geminate. D C. prodr. 2. p. 426.
Western coast of North America, Mocino (ic. ined.) Head like that of
M. pudica. Fruit unknown. DC.—There is probably some mistake concerning
the locality of this plant. We know of no Mimosaeeous plant
indigenous to the Pacific coast within the limits of this work.
62. SCHRANKIA. Willd. spec. 4. p. 1041; DC.prodr. 2. p. 443.
Flowers polygamous (perfect and staminate). Calyx urceolate, minute,
5-toothed. Petals united in an infundibuliform 5-cleft corolla. Stamens
8-10, or rarely 12, distinct or cohering at the base. Legume muricate-
echinate, dry, 1-celled, somewhat 4-sided, 4-valved by the separation of a
large replum from the (thinner and smaller valves,) many-seeded.—Perennial
prickly herbs, with bipinnate sensitive leaves. Stems procumbent, or
ascending. Flowers (rose-color or purplish) in spherical heads: peduncles
axillary, solitary or in pairs.-
1. S. uncinata (Willd.) : stem 5-8-grooved or angled: pinna 6 pairs;
leaflets numerous, elliptical, reticulated with elevated veins beneath; heads
mostly solitary, on peduncles mostly shorter than the leaves; legumes oblong
linear, with a short acuminate point, very densely echinate, as long as or
often shorter than the peduncle; seeds elliptical.— Willd.! spec. 4. p. 1043 ;
Pursh,Jl. 1. p. 305; DC. 1. c. ? Mimosa Intsia, Walt. Car. p. 252. M.
horridula, Michx.! fl. 2. p. 254; Vent, choix. t. 28.
Dry sandy soil, Virginia to Florida! Missouri! Louisiana! Arkansas!
and Texas ! May-July.—Stem (2-4 feet long) petioles, and peduncles thickly
armed with strong uncinate prickles. Heads of flowers mostly rather
large; the peduncles sometimes 2-3 inches long. Legumes about 2 inches in
length, teretish, 4-7 usually ripening in each head.
2. S. angustata: stem 5-8-grooved or angled; pinnae 4-6 pairs; leaflets
numerous, linear-elliptical, obscurely veined; heads solitary or in pairs, on
short peduncles ; legumes linear, long and slender, subulate-attenuate at the
apex, armed with rather scattered prickles, 3-4 times the length of the peduncle
; seeds linear-oblong.—S. uncinata, Ell. sic. 2. p. 158. (at least in
part, ex spec.!)
With the preceding, S. Carolina! Georgia! Texas, Drummond!—A more
slender species than S. uncinata, with smaller and weaker prickles,«smaller
heads, which are very frequently geminate,' the leaflets not at all reticulated,
the subulate and sparsely armed pods about 4 inches long, very slender, the
peduncle usually about an inch in length.—Dr. Pickering seems first to have
distinguished these two species, having labelled specimens of the preceding,
in the herbarium of the Academy of Natural Sciences, S. reticulata; but are-
ference.to Willdenow’s work clearly showsthat S. uncinata was wholly founded
on this plant: that author notices the reticulated leaflets, and describes the
peduncles as very long, and the fruit densely muricate. De Candolle has
probably confounded the two species, since he states the legumes to be longer
than the peduncles. Perhaps our S. angustata is the same with S. distachya,
DC. of New Spain, which is founded on a drawing by Mogino.
63. DARLINGTONIA. DC. in ann. sci. nat. 1825, Sf mem. Leg. t. 66.
Flowers perfect. Calyx campanulate, 5-toothed. Petals 5, distinct.
Stamens 5, distinct: style filiform : stigma minute, infundibuliform. Legume
lanceolate, dry; compressed, membranaceo-coriaceous, 2-valved, 4-6-
seeded. Seeds obovate-oval, compressed, with a very slender funiculus.—
A perennial nearly glabrous unarmed herb. Stipules setiform. Leaves bipinnate
; the pinnae and leaflets numerous. Flowers white, in axillary pedunculate
heads ; the legumes capitate or crowded.
D. brachyloba (DC. 1. c.)
a. Illinoensis: pinnae 6-11 pairs, with a gland between the lowest pair only;
stems somewhat diffuse; legumes slightly falcate.—D. brachyloba, DC.! 1.
c. Sf prodr. 2. p. 443. Mimosa Illinoensis, Michaux ! jl. 2. p. 254. Acacia
brachyloba, Willd. spec. 4. p. 1071.
0- intermedia: pinnae 9-14 pairs, with a gland between the lowest pair
only; stem stouter, more striate-angled; legumes*as in var. y.—D. intermedia,
Torr.! in ann. lyc. NewYorlc. 2. p. 181,
y. glandulosa: pinnae 10-14 pairs, with a gland at the base of each ; stem
stout, striate-angled; legumes falcate, a little narrower, numerous in- a dense
head.—D. glandulosa, DC.! l.c. Mimosa glandulosa, Michx.! 1. c. Acacia
glandulosa, Willd. 1. c.
Prairies and banks of rivers, a. Illinois! Kentucky & Louisiana! also Florida,
Dr. Chapman! 0. & y. South Western States! to Arkansas! & Texas!
June—Aug.—Stems 1—3 feet high. Leaflets very small, linear, somewhat
mucronate. Legumes an inch or less in length, somewhat intercepted between
the seeds, sometimes by abortion 1-2-seeded.—We find no essential
difference between the more southern form (D. glandulosa, DC.) and D.
brachyloba, except that the heads ripen a greater number of pods, which are
a little narrower and more falcate than in the latter form, and even this character
seems not to be constant.
64. DESMANTHUS. Willd. spec. 4. p. 1044 ; Kunth, Mim. etc. p. 115.
Flowers polygamous (perfect and neutral). - Calyx campanulate, 5-toothed.
Petals distinct and oblong-spatulate, or sometimes united, occasionally want