522 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 
. With narrow scarious margin, weakly 3-veined, rather densely pilose with sev- 
eral-celled spreading hairs chiefly below the middle, the 3 inner similar but 
more broadly scarious-margined, 4 mm. long, nearly or quite glabrous; petals 
5, white, cuneate, bifid to below the middle, 5 mm. long, persistent; stameus 
5, slightly surpassing the pistil; ovary about 22-ovuled; style short, shorter 
than the 3 stigmatic branches; capsule ovoid, obtuse, about 4 mm. long, slightly 
surpassing the sepals, shorter than the petals; seeds blackish brown, bluntly 
muriculate, 1.2 mm. long. 
Type in the U. 8. National Herbarium, no. 602305, collected on the Paraimo 
de la Cristalina, Trujillo, Venezuela, altitude 2,900 meters, October 20, 1910, by 
Alfredo Jahn (no. 111). 
A species of the Drymaria cordata group, apparently nearest the Peruvian 
D. paucifiora Bartl. In that species, known to me only from description, the 
calyx is glabrous and scarcely a line long, the petals are shorter than the se- 
pals, the stamens are 2 or 3, and the capsule is nearly twice. as long as the 
calyx. 
BRASSICACEAE. 
Draba chionophila Blake, sp. nov. PLATE 389. 
Herbaceous perennial; root napiform, densely clothed above with the per- 
sistent leaf bases, 11 em. long or more, 2.5 em. thick above (including the per- 
sistent leaf bases) ; leaves innumerable in a dense basal tuft, narrowly linear- 
subulate or linear, 3 to 5 cm. long, 1.5 to 2.5 mm. wide at base, 1 to 1.5 mm. 
wide above, narrowed to an obtuse apex, sessile, entire, fleshy, flattish, slightly 
grooved on the upper side, glabrous, apparently glaucescent, obscurely 3-nerved 
toward base, nerveless above; stem 12 cm. high, stout (1 em. thick toward 
base), densely branched throughout (the whole plant subglobose), densely 
spreading-pubescent with simple and few-branched whitish hairs about 0.7 
mm. long; branch leaves and bracts subtending the lower pedicels linear- 
subulate, 8 to 15 mm. long; racemes many-flowered, loose below, 3 to 4 cm. long; 
pedicels stout, in fruit wide-spreading, 7 to 11 mm. long, pubescent like the 
stem, the hairs nearly all branched; sepals 4, oval, broadly rounded, 3.8 mm. 
long, 2.6 mm. wide, about 3-veined, pilose with simple and forked hairs along 
middle of back, broadly subscarious-margined ; petals pale yellow (when dried), 
cuneate-obovate, 4.5 mm. long, 2 mm. wide, obtuse; filaments 2.5 mm. long, 
glabrous, with ovate swollen base; ovary glabrous; capsule elliptic, 8 to 9 
im. long, 3.8 to 4 mm. wide, glabrous, 1-nerved and prominulously feather- 
veined on the valves, tipped with a stout style 1.2 mm. long; seeds 6 or 7 
in each cell, 2-ranked, pale brown, minutely papillose, 1.3 to 1.5 mm. long. 
Type in the U. 8S. National Herbarium, no. 602331, collected in snow on the 
Sierra Nevada of Santo Domingo, Mérida, Venezuela, altitude 4,500 meters, 
December 11, 1910, by Alfredo Jahn (no, 136). 
This species belongs either to the section Arbusculae or the apparently 
scarcely distinct section Volcanicae of Gilg, and is at once recognizable by its 
linear-subulate, fleshy, glabrous leaves. The vernacular name is given as 
“ arafa.” 
EXPLANATION OF PLATH 39.--Draba chionophila, from the type specimen. Natural size, 
FABACEAE. 
Bauhinia caudigera Blake, sp. nov. PLATE 40. 
Shrub or small tree, unarmed; branchlets slender, glabrous, grayish ; 
petioles glabrous, 10 to 17 mm. long; leaf blades ovate, 10 to 14 em. long, 3 
* Bot. Jahrb. Engler 40: Beibl. 90: 39. 1907. 
