238 XLVI. ROSACEA. 
SuzporpER 3—MIMOS E &. 
Sepals and petals valvate in sestivation, subregular. Stamens 5—200. 
Embryo straight.—Leaves abruptly pinnate or bipinnate. 
38. MIMOSA. 
. G7. pos, a buffoon; the leaves seems sporting with the hand that touches them. 
Flowers 2 $d: % Calyx 5-toothed; corolla 0, or 5-toothed ; sta. 
4—15; legume separated into l-seeded joints ; f like the perfect, but 
without ovaries or fruit—% Hbs. and shrubs, natives of tropical Amer. &c. 
M. pupica. Sensitive Plant—wSt. prickly, more or less hispid; lvs.-digitate- 
pinnate; pinne 4, of many (20 or more) pairs of linear leaflets—Native of Bra- 
zil. Stem shrubby, about a foot high. Leaflets about 3” long, very numerous. 
Flowers small, capitate—It is occasionally cultivated for the interest excited 
by its spontaneous motions,—the leaves bending, folding, and apparently shrink- 
ing away from the touch of the hand. . 
39. SCHRANKIA. Willd. 
In honor of Francis de Paula Schrank, a German botanist. 
Flowers § &; calyx minute, 5-toothed; petals united intoa funnel- 
shaped, 5-eleft corolla; stamens 8—10,distinctor monadelphous; legume 
echinate, dry, 1-celled, 4-valved, many-seeded;—%4 Prickly herbs. St. 
procumbent. Lws. sensitive, bipinnate. Els. in spherical heads, purplish. 
S. unciwara. Willd. (Mimosa horridula. Michx.) Sensitive Brier. 
St. angled, grooved; pinne 6—8 pairs; //ts. numerous, minute, elliptical, 
reticulated beneath; Ads. solitary, on peduncles shorter than the leaves; leg. 
very densely clothed with prickles.—Dry soils, Clark Co., Mo. Mead, and 
Southern States. Stem 2—4f long, and with the petioles and peduncles armed 
With short, sel prickles turned downwards. Leaflets about 2” by }#’. Pedun- 
cles 2—3/ long, heads }—3/ diam. May—Jl. 
40. DARLINGTONIA. DC, 
In honor of Hon. Wm. Darlington, of Penn., author of Flora Cestriea, &c. , 53 
Flowers % ; calyx campanulate, 5-toothed; petals-5, distinet; sta- 
mens 5, distinct; style filiform; stigma minute, funnel-shaped; 
legume lanceolate, dry, 2-valved, 4—6-seeded—% Unarmed and gla- 
brous herbs. Lvs. abruptly bipinnate ; lfts. very numerous. Fs. white, in 
axillary, pedunculate heads. 
D. pracnyLtéza. DC. (Desmanthus. Benth.) 
a. Illinoensis. T. & G. (Mimosa Illinoensis. Michz.) Pinne 6—11 
pairs, with a gland between the lowest pair only; stems numerous, diffuse ; leg. 
slightly faleate——Prairies and bottoms, Ill. to La. Stems 2—3f high, simple, 
striate. Leaves 2—4/ long. Leaflets linear-oblong, subfalcate, obtuse at each 
end, 24” by 3”. Legumes crowded, 3/long. Jn. Aug.—This genus is reduced 
by Bentham to Desmanthus, Willd., but there are numerous genera based on 
less important distinctions than this; e. g. Vicia and Lathyrus. 
Orpver XLVIII. ROSACEA. 
Trees, shrubs or herbs. Leaves alternate. 
Stipules usually large or conspicuous, sometimes none. 
Fis. regular, commonly showy, rarely dicecious. ; 
7 
Cal.—Sepals 5, rarely fewer, united, often reinforced by as many bracts. ’ 
Cor.—Petals 5, regular, rarely wanting, inserted on the disk which lines the orifice of the calyx. 
Sta. 00, usually numerous, arising from the calyx, distinct. ; 
Ova. superior, 1 or several, distinct, 1-celled, often coherent to the sides of the calyx and each other. 
Styles distinct or united. Fruita drupe, pome, achenia or follicle. f , 
This order, as here constituted, consists of three suborders, which by Lindley are regarded as separate 
orders; viz. Amygdalee@, Pome and Rosace@ proper, to which is added Chrysobalane@, not represented 
in this flora. The genera and species in each suborder are estimated by Lindley as follows: 
Chrysobalanew, 11 genera, 50 species. 
oe 0 
Amyegdalee, 5 ; ll 
Pomee, 16 : 200. ** 
Rosacew proper,50 ‘“ 6% “ 
ital: ~ “RES eee 
