PITTIER—PLANTS FROM COLOMBIA AND CENTRAL AMERICA. 85 
Fruit varying from subglobose to ovoid, always pointed at the apex, and sometimes 
also at the base, 9 to 10 cm. long, 6.5 to 8 cm. in diameter, 1 or 2-seeded; skin thin, 
smooth, olive green, more or less covered with russet dots or lines. Seeds 4.5 to 6 
cm. long, 2.3 to 8.7 cm. in diameter, olive-shaped, pointed at both ends, apiculate 
near the hilum end of the umbilical area, distinctly carinate, light brown and pol- 
ished; umbilical area obovate-elongate, broader at the hilum, reddish and almost 
smooth. 
Type in the U. S. National Herbarium, no. 860323, collected at Cobain, Alta Vera- 
paz, Guatemala, August 6, 1910, by O. F. Cook (no. 214). Besides the type sheet 
there is a second sheet in the National Herbarium of the same collection, and another 
from near the Finca Sepacuité, Alta Verapaz, March 26, 1902, Cook & Griggs 183, 
with a photograph (no. 184). 
CoMMON NAMES: Guatemala, ingerto. Costa Rica, zapote. Honduras, zapotillo 
calenturtente. 
This species, which curiously enough seems to have hitherto escaped the attention 
of botanists, is closely related to Achras mammosa, differing, nevertheless, by the 
smaller leaves, downy and white beneath, the smaller 
and differently shaped sepals, the shorter staminodes 
and stamens, the latter with broadly ovate anthers, 
and above all the comparatively small, green, and thin- 
skinned fruit and the smaller, ovate seed. Morelet? 
calls it Lucuma salicifolia, but there can be no possi- 
ble confusion with that Mexican species of Humboldt 
and Bonpland. 
Calocarpum viride is known so far only from Guatemala 
(where it seems to be rather frequent in Alta Verapaz), 
from Honduras, and from Costa Rica. It is likely to 
be found in all the intervening region. The common 
name “‘ingerto” suggests some kind of crossing, or the 
result of budding, but there can be no doubt as to the Fic. 86.—Floral details of Calocar- 
tree being a good representative of thegenusCalocarpum. Pum viride. a, Sepals, exterior 
The fruit is superior in quality to the common zapote and interior; 6, staminades; ¢, 
; , stamens; d, pistil. All scale 3. 
the flesh not being so fibrous and being free from the 
squashy flavor that characterizes the latter. It seems to keep pretty well and the 
skin, although thin, is not easily broken in transportation. The ingerto is often 
seen in the markets of Guatemalan towns and seems to be a favorite with the 
people; it is rarer in Costa Rica. 
EXPLANATION OF PLATES 52-54.—All from photographs taken by G. N. Collins in Guatemala, except 
54, A; this from one taken in Washington by C. B. Doyle. All natural size, except 54, B. 
Lucuma salicifolia H.B. K. Nov. Gen. & Sp. 3: 241. 1818. 
Puates 55, 56. Fiaure 87. 
Richardella salicifolia Pierre, Notes Bot. Sapot. 20. 1890. 
Section Rivicoa. A small tree, about 8 meters high and 25 cm. in diameter (R. 8. 
Williams in sched.). Young twigs sparsely pubescent. 
Leaves alternate, crowded at the ends of the branchlets, petiolate, entire, perfectly 
glabrous. Petioles 1 to 1.5 cm. long, broadly canaliculate. Leaf blades 9 to 18 cm. 
long, 3 to 4 cm. broad, lanceolate, acute at the base, narrowing into an obtuse tip, 
light green above, paler beneath. Margin slightly revolute. Nervation distinct on 
both faces, more salient beneath, 14 to 15 primary veins on each side of the costa. 
Flowers green (Williams) or white, solitary or geminate in the axils of the leaves. 
Pedicels 9 to 12 mm. long, pubescent. Sepals 5, 5 to 6 mm. long, free, ovate, coria- 
1 Morelet, P. M. A. Voyage dans l’Amérique centrale, 1’Ile de Cuba et le Yuca- 
tan 2: 152. 1858-75. 
