32 Mr. J. Miers on the genus Pteroglossis. 
This plant seldom exceeds a height of 15 or 18 inches: it has 
a stronger and more woody stem, and may easily be distinguished 
from the former species by its radical leaves, which are of thicker 
texture, broader in proportion, shorter and more elliptic, with 
short obtuse teeth, and not deeply divided with acute incisures, 
as in S, picta: the radical leaves, including the attenuated pe- 
tiole, are 34 inches in length, the limb being 2} inches long and 
11 Imes broad. 
PTEROGLOSSIS. 
Among the very curious and interesting plants collected by 
Bridges in the vicinity of Coquimbo, is one that will constitute a 
new genus, near Salpiglossis. It is a plant with pinnatifid leaves, 
only in a few of the lower axils, those above being reduced to a 
linear form; its ascending stems are widely diffuse im many 
spreading dichotomous branchlets, which are very slender and 
terete ; the leaves at each axil are gradually diminished to the 
size of very short linear bracts, which support a few solitary one- 
flowered peduncles. The corolla, though smaller, has much the 
shape of that of Salpiglossis, with didynamous included stamens, 
and it possesses the peculiar estivation of the Salpiglossidee. 
The most remarkable feature consists in the unusually broad ex- 
pansion of its stigma, which hoods the lower pair of stamens, 
somewhat after the manner of Nierembergia, its winged appen- 
dages being quite membranaceous, decurrent for some length 
upon the style, and marked with numerous parallel radiating 
nervures, which terminate in its lacerated or crenulate margins. 
The name above proposed is derived from zrepov, ala, and 
yAodooa, lingua, because of its broadly winged stigma. 
Preroctossis (gen. nov.).—Calyx tubulosus, subcylindricus, 
breviter 5-dentatus, 10-nervis, dentibus acutis. Corolla in- 
fundibuliformis, tubo imo coarctato, hine ventricoso, 15-striato, 
limbo expanso, inequaliter 5-lobo, sub-bilabiato, lobis omni- 
bus emarginatis, superior longiori et latiori, zestivatione reci- 
procativa*. Stamina 4, didynama, inclusa, postica longiora ; 
filamenta dilatata, apice angustata. Anthere ovate, 2-lobe, 
imo divaricate, apice sine connectivo in sinu apicifix, rima 
marginali dehiscentes. Ovarium disco carnoso sub 2-lobo im- 
positum, stipitatum, 2-loculare, placentis centralibus disse- 
pimento adnatis, multiovulatis. Stylus apice dilatatus, in- 
flexus. Stigma bialatum, emarginatum, superne carinatum, 
infra planum, glandula viscoso in sinu notatum, alis latis, 
membranaceis, in stylum longe decurrentibus, radiatim nervo- 
sis, margine sublaceratis, staminibus inferioribus amplecten- 
* Ann. Nat. Hist. 2nd Ser. iii. p. 172. 
