PITTIER—PLANTS FROM COLOMBIA AND CENTRAL AMERICA. 243 
minutely white-dotted above, distinctly white-scaly beneath. Panicles once 
branched, erect, 9 to 12 cm. long. many-flowered, the rachis angulate, densely 
scaly. Flowers sparse, orange yellow; calyx articulate upon the ovary, cam- 
panulate, stipitate, densely scaly without, villous-tomentose within, principally 
at the insertion of the stamens, the limb about 10 mm. long, the lobes 3.5 mm. 
long, triangular, acute; petals spatulate-oblong, acute, glabrous, 2 mm. long, 0.8 
to 1 mm. broad; stamens 8, the filaments about 2.5 cm, long, the anthers oblong ; 
disc glabrous within, the free margin 4-sinuate, densely long-villous; ovary 
fusiform, 4-angled, substipitate, densely scaly, about 4 mm. long; style slender, 
glabrous, apiculate, slightly surpassing the stamens. Fruit about 16 mm. long 
and 18 mm. in diameter across the wings, these glabrous, more or less densely 
scaly. Seed single, linear-fusiform, glabrous. 
Type from between Acapulco and Venta del Ejido, Mexico. 
OTHER COLLECTIONS : 
Mexico: Mazatlin, flowers, January to March, 1902, C. A. Purpus 366. 
Vicinity of Acapulco, fruits, May 5, 1895, Palmer 397. 
4, Combretum phaenopetalum (Donn. Smith) Pittier, sp. nov. 
Combretum farinosum H. B. K. var. phaenopetalum Donn. Smith, Bot. Gaz. 
28: 7, 1897. 
A climbing vine, the branchlets glabrous, more or less quadrangular toward 
the ends. Leaves subcoriaceous, the petioles canaliculate, scaly-pubescent, 
6 to 8 mm. long, the blades ovate to elliptic, rounded and short-attenuate at the 
base, acutely acuminate at the apex, 9 to 13 cm. long, 3.5 to 5.5 cm. broad, 
minutely dotted above, paler, reticulate, and white or brownish-scaly beneath. 
Panicles sparingly branched, the spikes 2 to 8 cm. long, the rachis scaly and 
brownish-pubescent; calyx funnelform, narrow, stipitate, about 1 cm. long, 
brownish-scaly without, sparsely pilosulous within, the lobes triangular, sub- 
acute, 2.2 mm. long; petals ovate, apiculate, glabrous, 1.6 to 1.8 mm. long, 
0.8 to 0.9 mm. broad; stamens 8, glabrous, the filaments about 16 mm. long, 
the anthers ovate; dise glabrous inside, the sinuate margin sparsely villous; 
ovary substipitate, scaly, about 38 mm. long; style much longer than the stamens. 
Samara brownish-scaly. 
Type in the U. S. National Herbarium, no. 952374 collected near Nentén, 
Department of Huehuetenango, Guatemala, flowers and fruits, December, 1895, 
by E. W. Nelson (no, 3534). 
OTHER COLLECTIONS : 
JUATEMALA! Cubilquitz, Alta Verapaz, flowers, February, 1900, von Tiirck- 
heim (J. D. Smith, no. 7621). Santa Rosa, Department of Santa Rosa, 
flowers, November, 1892, Heyde & Lua (J.D. Smith, no. 41738). 
This shrub is sufficiently well marked tc be elevated to specific rank. At all 
events, it can hardly be considered a variety of C. farinosum, from which it 
departs in its short petioles, larger leaf blades, shorter floral spikes, the rachis 
of which is covered with a mixture of scales and brownish pubescence, much 
narrower calyx, with shorter lobes and very sparsely villous within, smaller, 
ovate petals, disc sparsely villous on the margin, and style exceeding the 
stamens about 7 mm. 
5. Combretum polystachyum Pittier, sp. nov. FIGuneE 99. 
A climbing vine, the stems subquadrangular, scaly toward the ends. Leaves 
coriaceous, the petioles semiterete, deeply canaliculate, densely white-scaly, 
0.8 to 1 cm. long, the blades ovate to elliptic-oblong, rounded and attenuate at 
the base, acute or short-acuminate at the apex, 4 to 8 em. long, 2 to 5 em, 
broad, white-scaly and punctulate above, paler and more densely white-scaly 
beneath. Panicles 30 to 45 cm. long, with 6 to 8 or more pairs of opposite 
