218 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
sericeous with brown lustrous hairs, the margin plane or revolute; racemes 
densely flowered, pedunculate, 6 to 8.5 em, long, forming a panicle 20 to 30 
em. long, the branches ferruginous-tomentose, the flowers solitary or fasciculate, 
short-pedicellate; calyx 8 mim. long, densely tomentose, the lobes deltoid, ob- 
tuse or acutish, about 2 mm, long; petals glabrous, long-clawed; standard 17 
mm. long, the blade suborbicular, 11 mm. wide, deeply retuse at the apex, sub- 
truncate at the base, the claw 5 to 6 mm. long; blades of the wings oblong, 
9 mm, long, 3 mm. wide, rounded at the apex, produced at the base into a 
rounded auricle, the claw 6 mm. long; keel peta!s similar to the wings in size 
and form; stamens diadelphous, the filaments 10 to 14 mm. long; ovary long- 
stipitate, glabrous, 1 or 2-ovulate. 
Type in the U. 8, National Herbarium, no. 888479, collected at Catemaco, 
Veracruz, Mexico, altitude 300 meters, April 26, 1894, by E. W. Nelson (no. 
424). Also collected at Lalana (Chinantla), Puebla, July, 1844, by H. Galeotti 
(no. 3464). 
The only other species of Andira found in Mexico is A. jamaicensis (W. 
Wright) Urban, a widely distributed plant with glabrous, acute or acuminate 
leaflets, much smaller flowers, and pubescent ovary. 
Galeotti gives the vernacular name as “ macayo.” 
Picramnia pistaciaefolia Blake & Standl., sp. nov. 
3ranches very slender, flexuous, brownish gray, puberulent when young; 
leaves 8 to 18 cm. long, the rachis slender, puberulent; leaflets 19 to 23, short- 
petiolulate, the upper ones opposite. the lower ones smaller and alternate, the 
lowest pair borne at or near the base of the rachis, the blades ovate-rhombic 
or the lowest rhombic-oval, 1 to 8.5 em. long, 0.6 to 1.2 em. wide, very oblique 
at the base and obtuse to acuminate, subabruptly obtuse-acuminate at the apex, 
thin, minutely puberulent when young, glabrate in age; panicles slender, 15 
to 20 cm. long, the staminate ones spiciform, the pistillate racemiform, the 
rachis puberulent; sepals 3, about 1 mm. long, ovate or ovate-oval, obtuse, 
puberulent outside; petals 3, ligu’ate, slightly longer than the sepals; stamens 
8, twice as long as the petals; fruit (immature) obovoid, about 1 em. long and 
6 mm. in diameter, 
Type in the U. 8. National Herbarium, no. 842534, collected at Cafetal San 
Rafael (Cerro Espino), Oaxaca, Mexico, altitude 800 meters, October 28, 1917, 
by B. P. Reko (no, 8452). The type material consists of a fruiting branch. 
Specimens in flower were obtained on Cerro de Huatulco, Oaxaca, altitude 900 
meters, August 28, 1917, by Doctor Reko (no. 3360). 
In the key to the species of Picramnia in the North American Flora‘! this 
plant would run at once to P. antidesma Swartz, a species widely different from 
the present one in the size, form, and texture of the leaflets, and in the size 
of the flowers. Picramnia pistaciaefolia seems to be different also from any 
of the Mexican species described by Tulasne, which are only mentioned as 
doubtful in the North American Flora. 
Doctor Reko states that the vernacular names are “ramon” and “ lentiseo,” 
Rhus barclayi (Hemsl.) Standl, 
Rhus terebinthifolia barclayi Hemsl, Biol. Centr. Amer. Bot. 1: 219. 1880, 
This is distinguished sufficiently from R. terebinthifolia Schlecht. by the long 
petiolules of the lateral leaflets. The pubescence on the lower surface of the 
leaflets, too, is much less dense, and consists of long, straight, stiff, rather 
slender hairs. In R. terebinthifolia the lateral leaflets are nearly sessile, and 
*25: 235, 1911. 
