A NEW GENUS OF MYRSINACEAE FROM THE 
PHILIPPINES 
By Eimer D. MERRILL 
Director and Botanist, Bureau of Science, Manila 
APOIA genus novum 
Flores hermaphroditi, 5-meri. Sepala imbricata, usque ad 4 
connata, subcoriacea, epunctata. Petala usque ad 4 connata, im- 
bricata, per anthesin patentia, epunctata. Antherae 5, disco 
petalis adnato insidentes, quam petalis multo breviores, basifixae, 
rimis longitudinaliter subintrorsae dehiscentes, staminodeis bre- 
vibus alternantibus. Ovarium glabrum, ovoideum, 2-loculare, 
loculis 1-ovulatis, ovulis a basi erectis; stylo cylindrico, brevi. 
Fructus ellipsoideus, baccatus, breviter mucronatus, 2- vel 1- 
spermus. Semen ellipsoideum vel plano-convexum, albumine 
laevi, endocarpio crustaceo. Arbor glabra, epunctata, foliis al- 
ternis, integris vel leviter undulatis, petiolatis, glabris, petiolo 
apice 1- vel 2-appendiculato-glanduloso. Inflorescentiae axillares, 
paniculatae, multiflorae, flores spicatim dispositae, bracteolatae. 
APOIA MACROCARPA (Elm.) comb. nov. 
Discocalyx macrocarpa (Elm.) Leafl. Philip. Bot. 8 (1915) 2781. 
The form described by Elmer as Discocalyx macrocarpa is 
represented by three collections from Mount Apo, Davao District, 
Mindanao, Elmer 11867, 10660, 105538, of which two are in flower 
and one is in fruit. The species occurs in primary forests at 
altitudes from 750 to 1,100 meters, and is locally known to the 
-Bagobos as pamaluyan. 
The original description is very long, yet several very im- 
portant characters are not mentioned, these being the presence 
of staminodes alternating with the stamens; the 2-celled ovary, 
each cell with a single basal ovule; and the often 2-seeded fruit. 
The peculiar appendiculate-glandular petiole character is men- 
tioned although this is not emphasized. At the junction with the 
lamina each petiole is provided with one, or more usually two, 
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