COLLECTED BY MR. WEIR. 191 
pruinosis, maulipe inclusis, glabris; ovario glauco-pruinoso, 
е glabro pulvinato suffulto.—Prov. San Paólo (Weir, No. 
_ This is a небе species, differing from C. difficilis in its more 
obtuse and more opaque leaves, in its calyx less acutely dentate, in its 
larger and deeper coloured corolla. It is near C. analoga, but its 
leaves are not polished on both sides, and its nervures are not of a 
deep red colour. Its branches are slender, its internodes are 8 to 4 
inches apart, the petioles, divaricated at nearly a right angle, are 1 inch, 
and the petiolules 8 lines long; the leaflets are 33 inches long, 24 inches 
broad. The young branchlets, as well as the azillar y racemes, issue from 
an imbricately bracteated tuft, the usual characteristic of the genus. The 
inflorescence is racemose, the main peduncle being only 1 inch long, 
the opposite 1-flowered pedicels are 4 lines long, with two braets in the 
middle, showing they are normally 3-flowered; the calyx is 4 lines long, 
the corolla, including the border, is 21 inches long. 
12. Cypista, sp., sine foliis—Prov. San Paólo (Weir, 54). 
The genus Cydista was proposed by me for a distinct group of 
plants, of which the Bignonia equinoctialis, Linn., is the type. Its 
numerous species are all climbing plants, distinguished by panicles of 
large showy flowers, of a rose colour, or of a delicate purple, or nearly 
white, generally marked with darker stripes; һе tube, often inclining to 
а yellowish hue, is plicated longitudinally on the dorsal side. The 
branches are generally slender, more or less acutely four-angled, with 
distant axillary nodes, which are tumid or much dilated. The leaves 
seen а pair of acute bractiform stipuloid leaflets, enclosing a tuft of 
persistent imbricated scales, out of which each nascent flowering branch- 
let is produced. The inflorescence is axillary, in simple racemes, or 
8-chotomous panicles: the calyx is rather small, tubular, with an entire 
denticulate, or somewhat bilabiate margin: the stamens seldom exceed 
half the length of the tube of the corolla: the ovary is cylindrical, 
smooth, or lepidote, and seated on a very small disk. The capsule is 
long, linear, much compressed, with flat coriaceous valves having 
slightly tumid margins ; it seeds are large, imbricated, fixed in a single 
series along each margin of a thin parallel dissepiment ; they have gene- 
rally an opaque and somewhat coriaceous wing, which is a characteristic 
feature. Some of its species are— 
1. CyDISTA MQUINOCTIALIS: Bign. idem. мат: D.C. 1. в, 
s. Schomb., p Guiana, 
"pese, 1570 Rio Negro. 
. CYDISTA AMGNA, n. 8р. в. Jussieu San Domingo. 
3, CYDISTA SPECTABILIS : Bign. idem. Vahl. Symb. D. с. 1.с.155. 
. в, Schomb,, 1838 Guiana. 
4, CYDISTA SARMENTOSA: Bign. idem,, Bertol. D.C. 1. c. 155. 
Y. s. Нівая Cent, Amer. 
