86 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
ceous, velvety outside, glabrous inside. Corolla broad, 10 to 11 mm. long, 5 or 6 
lobed, pubescent outside, the margins minutely ciliate or denticulate ; lobes ovate, 
equal in length to the tube, rounded at the tip. Staminodes 5, 3.5 to 4 mm. long, 
papillose, linear, rounded-obtuse at the end, alternating with and one-third shorter 
than the corolla lobes. Stamens 5, 2 to 3.5 mm. long, glabrous, inserted a little lower 
than the staminodes; filaments short, attenuate at tip; anthers extrorse, ovate or 
ovate-elliptic, slightly emarginate at base. Pistil about 10 mm. long; ovary rounded, 
6-celled, densely hairy; style smooth; stigma obtuse, hardly distinct from the style. 
Fruits fusiform, 1-seeded, 10 to 12 cm. long, 4 to 5 em. in diameter, rounded at base 
with the persistent, 5-parted calyx attached, attenuate and rounded-obtuse at the 
tip (and often with a lateral stigmatic spot). Skin thick, leathery, smooth, yellow; 
pulp mealy, sweet, edible, the color and consistence of the yolk of a hard-boiled egg. 
Seed fusiform, 4 to 5 cm. long, 1.5 to 2 cm. in diameter, apiculate at the hilum end, 
light brown and polished outside the umbilical area, this broad, elliptic-elongate, 
neither impressed nor salient, whitish and almost smooth. 
Description based on the fine Costa 
Rican specimens sent by Mr. O. Jimé- 
nez Luthmer (no. 513). 
Mexico: The species was originally 
described from this country upon spee- 
imensor notes obtained from Cervantes 
by Bonpland. The fruit and seed are 
described and figured here probably 
for the first time. Safford (MSS. notes) 
reports it from Mexico City, Guana- 
juato, Oaxaca, Morelos, Guadala- 
Fia, 87.—Floral details of Lucwma salicifolia. a, Opened jara, and Michoacan. Tt is doubtful 
corolla with stamens and staminodes; 2, pistil, Whether L. palmeri Fernald, a scrubby 
Scale 3. form collected in Acapulco, is really 
distinct. 
Costa Rica: Occasionally cultivated in the valley of San Jose, but never met with 
in a wild condition. 
Panama: Vicinity of Penonomé, Province of Coclé, in the zone below 300 meters, 
flowers, between February 23 and March 22, 1908, R. S. Williams 56 (U. 8. National 
Herbarium, no. 677891). 
There is no indication as to the presence or absence of the species in the northern 
and middle part of Central America, but it is very likely to be met with in that inter- 
vening region. 
COMMON NAMES: Mexico—Central Mexico and Guanajuato, zapote borracho; Oaxaca 
and Morelos, zapote amarillo; Guadalajara, mamey de Cartagena; Michoacan, huicwmo 
(Safford), Costa Rica, zapotillo, siguapa, and canistel, the latter probably from 
“canisté,”? the Maya name for Lucuma multiflora. 
This species seems to vary as to pubescence, number and disposition of flowers, etc., 
the only really constant characters being those shown by the fruit and seed. In the 
absence of these it is likely that several forms of L. salicifolia have been described as 
distinct species. 
FXPLANATION OF PLATES 55,56.—From photographs taken by C. B. Doyle of alcoholic material from 
Costa Rica. 
