208 A FLORA OF MANILA 
*3. A. sQUAMOSA L. Ates (Sp.-Fil.); Sugar Apple. 
A small tree 3 to 5 m high. Leaves somewhat pubescent when young, 
oblong, obtuse, acute, or obscurely acuminate, 8 to 15 cm long; petioles 1 
to 1.5 cm long. Flowers axillary, solitary, about 2.5 em long; pendulous, 
pubescent, 3-angled, greenish-white or yellowish. Fruit somewhat heart- 
shaped or ovoid, large, fleshy, pale or glaucous when mature, edible, 6 to 
9 em long, the outside roughened by the ends of the carpels. (Fl. Filip. 
pl. 192.) 
Commonly cultivated, fi. most of the year; widely distributed in the 
Philippines and subspontaneous. A native of tropical America, introduced 
in the Philippines at an early date by the Spaniards; now found in most 
tropical countries. 
4. CANANGIUM Baillon 
Trees with rather large leaves, somewhat drooping branches and large 
axillary, fascicled flowers. Sepals 3, ovate, valvate. Petals 6, 2-seriate, 
subequal, long, flat. Stamens linear, anther-cells approximate, extrorse; 
connective produced into a lanceolate, acute process. Ovaries many; ovules 
numerous, 2-seriate. Fruit fleshy, cylindric-oblong, stalked; seeds many, 
the testa crustaceous, pitted. (From the Malay name of one species.) 
Two or three species confined to Malaya, a single one in the Philippines. 
1. C. odoratum (Lam.) Baill. (Cananga odorata Hk. f. & Th.). Ilang- 
ilang (Tag.).— 
A medium-sized to rather large tree, the branches somewhat drooping. 
Leaves oblong-ovate, apex acuminate, base usually rounded 12 to 20 cm 
long, usually slightly pubescent beneath. Flowers very fragrant, greenish, 
soon turning yellowish, pendulous, their pedicels 1 to 2.5 cm long, elongated. 
in fruit. Sepals ovate, pubescent. Petals somewhat pubescent, lanceolate, 
4 to 6 cm long, 0.5 to 1 em wide. Fruit fleshy, oblong-cylindric, green or 
olivaceous, 2 cm long. (FI. Filip. pl. 221, Cananga odorata.) 
Very commonly cultivated in Manila, fl. all the year, the flowers being 
distilled in large quantities for the valuable perfume-oil known as ilang- 
ilang; throughout the Philippines, cultivated and indigenous, ascending 
to at least 700 m in forests. Ava, Tenasserim, and Java; planted in many 
other tropical countries. 
5. UNONA Linnaeus 
Erect or scandent shrubs or trees. Flowers usually solitary, axillary, 
extra-axillary, or leaf-opposed. Sepals 3. Petals 6, 2-seriate. Stamens 
cuneate; anther cells linear, extrorse, top of the connective subglobose or 
truncate. Ovaries numerous; style ovoid or oblong, recurved, grooved; 
ovules usually 5 or 6, 1-seriate. Ripe carpels many, elongated and con- 
stricted between the seeds. (Altered from Anona, another genus of the 
family.) 
Species about 50, tropical Asia and Africa, about 7 known from the 
Philippines; one introduced in our area. 
* 1. U. CHINENSIS (Lour.) DC. (U. discolor Vahl). 
An erect shrub or a small tree. Leaves 8 to 15 cm long, oblong to 
oblong-ovate, apex acuminate, base rounded, nearly glabrous, the lower 
surface, when dry, somewhat glaucous. Peduncles extra-axillary, about 
