Sapotaceae. 
This species, which is a tree 25 to 30 feet high, has a rather broad round crown, 
and pale glaucous, terete, glabrous branches: The tree differs from S. sand- 
wicense mainly in its pale yellow sessile fruits, in its single unisexual flowers, and 
very pale glabrous foliage. It was discovered by the writer during the month 
of November, 1910, on the Island of Maui, southern slopes of Mt. Haleakala, on 
the lava fields of Auahi, district of Kahikinui, elevation 3000 feet. It grows in 
company with Alectryon macrococcus, Pelea multiflora, Pterotropia dipyrena and 
Siderorylon sandwicense, as well as with another Sideroxylon with perfectly 
globose, orange-colored fruits which are smaller than in the species in question, 
and may be described as follows: 
Var. aurantium Rock var. nov. 
(Plates 156, 157, 158.) 
_ Leaves elliptical-ovate to linear-oblong, acuminate or rounded at the apex, covered 
with a bronze-colored tomentum underneath, pale green and dull above; flowers single; 
5 0 five 
fruits perfectly sessile deep orange-colored, globose, 2 to 2.5 em in diam., one to 
seeded, seeds smaller than in the species, enclosed in a thick pergameneous pyrena. 
This variety is a medium-sized tree, of different habit than the species, with 
Straight ascending branches. The biggest tree the writer observed on the lava 
fields of Puuwaawaa, North Kona, Hawaii, with trunks of nearly two feet in 
diameter, and clothed in a thick eray very rough bark, while the younger trees 
have a smooth grayish-white bark. The variety occurs on the Island of Hawaii 
in North and South Kona, as well as at Auahi, Maui, and can be distinguished 
at a glance from the species, even at a distance. 
SIDEROXYLON SPATHULATUM Hbd. Fi, Haw. Isl. (1888) 277;—Engl. in Engl. et 
antl Pilzfam. IV. i. (1890) 144;—Del Cast. Ill, Fl. Ins, Mar. Pac. VII. (1892) 
228;—Rock Coll. Haw. Publ. Bot. Bull. 1. (1911) 20.—Sapota sandwicensis var. 8 
Gray Proe. Am, Acad. V. (1862) 328. 
A small stiff-branched tree or shrub 4 to 5 m in height; leaves spathulate or elliptico- 
bl i 2 to 18 mm, rusty- 
cblong, blunt] cuminate, contracting into a g peti 1 
tomentose underneath, thick coriaceous, with the veins little prominent; fl sie 
in clusters o 0 n short pedicels of 2 to ; ealyx an rolla rusty-tomentose 
4mm high, their lobes somewhat acute; stamens inserted at the middle of the oe at 
the base of the lobes, the short filaments slightly reflected, not hair w, the ant a 
“piculate; staminodia broad, half the width lobes; ovary hairy, with short style; 
f range colored and glabrous when mature, cover h a rufous tomentum 
ou i 
when young, 3.5 em long, by little over 2 em wide, conical in outline, with an ac — 
apex, 5-seeded, each seed enclosed in a membraneous yellow pyrena, 20 mm : be 
wide, rounded at both ends grayish-brown, rather dull, linear elongate, cotyledons nearly 
m long and superior, fruit 
ty 
~~] & 
5 
This species is quite common on the Island of Lanai in the valleys of Kai- 
holena and Mahana, as well as on the windward side toward Halepalana, and 
in the Kaa forest. It grows in company with Chrysophyllum S sind datecarieatig 
Bobea Hookeri, Osmanthus sandwicensis, ete. The writer met with this same 
Species on the southern slopes of Mt. Haleakala, on the lava fields of Auahi, at 
an elevation of 2000, near the government road, in company with Reynoldsia 
Sandwicensis, Antidesma pulvinatum, ete. 
391 
