166 
PACIFIC SCIENCE, Vol. XI, April, 1957 
pericarp crisp, watery, 1. 0-2.0 cm. thick; 
seed loosely attached within, subglobose, 
1. 5-2.0 cm. in diameter; seed coat fibrous, 
brown, 1 mm. thick, adhering closely to the 
rugose surface of the cotyledons; cotyledons 
2, white or greenish, equal or unequal, not 
fused. 
Common name: "Ohia ai,” Mountain 
Apple. 
distribution: Common in the moist 
gulches on the larger islands. Native to the 
Indo-Malayan region, it may now be found 
in cultivation, widely distributed in the tropics 
of the world. 
Specimens examined: 
Hawaiian Islands: Hillebrand and Lyd- 
gate; Mann and Brigham 119; U. S. Explor. 
Exped. (NY). 
Kauai: Waioli Valley, along stream, alt. 
100 m., Feb. 27, 1927, MacDaniels 909 . 
Oahu: Punaluu, stream bank, elev. 800 ft., 
Sept. 28, 1930, St. John 10,581 (NY); Punaluu 
Valley, in dark forest in wet ground at bot- 
tom of Pig God trail, Sept. 2, 1932, Degener 
7,349 ; Waikane-Schofield trail, side of trail, 
1000 ft. alt., Dec. 2, 1951, Wilson 46; Koolau- 
loa, Kaluanui, Sacred Falls Valley 700 ft. alt., 
May 18, 1952, Wilson and Doty 137, 138 , 139, 
and 141; Kipapa Gulch, frequent at bottom 
of gulch, in "koa zone,” Egler 37-421; Kalihi 
Valley, Jan. 1, 1920, Garber 97; Moanalua 
Valley, March 7, 1910, Forbes 1465.0 ; Kaumo- 
kunui Gulch, rich dark wet gulch at 1500 ft., 
April 13, 1936, Degener 11,887 (NY, MICH); 
Waianae Mts.: Makaleha Valley, Jan. 14, 
1929, Neal; Puu Kaupakuhale, 2nd gulch of 
N.E. slope of Puu Kaala, in wood, May 14, 
1933, St. John 13,173. 
Molokai: Mapulehu, April 1910, Rock. 
Maui: Kailua, Haleakala, April 191 1, Rock. 
Hawaii: Hilo, May 1909, Eaurie. 
Eugenia malaccensis was most likely intro- 
duced into the Hawaiian Islands by the Poly- 
nesians. It may be found growing in large 
groves in moist, shaded valleys where it was 
probably originally planted and has subse- 
quently become established. 
2. Eugenia Jambos L., Sp. PL 470, 1753. 
Jambosa Jambos (L.) Millsp., Field Mus. Nat. 
Hist., Bot. Ser. 2(1): 80, 1900. 
Syzygium Jambos (L.) Alston, in Trimen, FI. 
Ceyl. 6 (Suppl.): 115, 1931. 
Tree 6-10 m. tall; branches brown to yel- 
lowish-brown, glabrate, longitudinally ridged; 
leaf scars rounded shield-shaped, 2.5-4 mm. 
wide, pale; stems of leafy branches 3-4 mm. 
in diameter, 4-angled or compressed, becom- 
ing terete in age, glabrous; internodes 1.5-3 
cm. long; leaves 10-20 cm. long, 2.5-5 cm. 
wide, lanceolate or oblong-lanceolate, taper- 
ing to an acuminate apex, base cuneate; mar- 
gin entire; blade coriaceous, above olive- 
green to reddish-green, glabrous, shiny, 
minutely pustulate, below paler, glabrous, 
minutely glandular-punctate; midrib shallowly 
impressed above, elevated below, light yel- 
lowish-green to reddish-green; primary lateral 
veins alternate or opposite, 10-15 on a side, 
5- 15 mm. apart, slightly elevated above, very 
prominent below, straight or slightly curved 
ascending at 140-150°, meeting in an irreg- 
ularly lobed continuous intramarginal vein 
3-5 mm. from leaf margin; the veinlets ob- 
scure above, distinctly raised-reticulate below; 
petiole 5-10 mm. long, 2-3 mm. wide, gla- 
brous, dark reddish-green; racemes terminal, 
6- 10 mm. long, rachis 6-15 mm. long, 3-4 
mm. wide, 4-angled brownish-green to red- 
dish-green, glabrous; pedicels 7-15 mm. 
long, flower single on the pedicels, 3-6 cm. 
long, 6-8 cm. in diameter; calyx tube obconic, 
1-1.5 cm. long, 7-10 mm. wide, elevated 
above ovary, narrowed into a short pseudo- 
stalk, glabrous or sparsely puberulous, mi- 
nutely glandular-punctate, green or yellow- 
green, subtended by 2 caducous, glabrate, 
subulate bracts 0. 8-1.0 mm. long; calyx lobes 
4, persistent, fleshy, unequal, 1 pair 6-8 mm. 
long and 8-9 mm. wide, the smaller pair 4-6 
mm. long, 8-9 mm. wide, below minutely 
glandular-punctate, glabrous or sparsely pu- 
berulous; petals 4, white to greenish-white, 
orbicular to ovate-orbicular, concave, spread- 
