The Philippine Journal of Science, C, Botany. 
VoL. VIII, No. 5, November, 1913 
STUDIES ON PHILIPPINE MELASTOMATACEAE, II 
By E. D. Merrill i 
{From the Botanical Section of the Biological Laboratory, 
Bureau of Science, Manila, P. I.) 
THE TRIBE ASTRONIEAE 
This tribe, chiefly of Malayan and Polynesian distribution, is 
interpreted by Cogniaux ^ as consisting of 5 genera : Astronia, by 
far the largest genus, with about 60 species, extending from trop- 
ical Africa, a single species, to Malaya and Polynesia ; Beccarian- 
thus, a monotypic Bornean genus ; Pternandra, with 5 species in 
the Malay Peninsula and Archipelago; Kibessia, with 16 species 
in the Malay Peninsula and Archipelago; and Plethiandra, a 
monotypic Bornean genus. To this must now be added the 
very distinct Philippine genus Astrocdlyx, and the less strongly 
marked one Everettia. The genus Beccarianthus is, by the de- 
scription of a second species, extended to the Philippines. Both 
the genus Kibessia and Pternandra have been credited to the 
Philippines, but on erroneously localized or erroneously deter- 
mined material. 
KEY TO the genera 
1. Stamens very numerous, about 65 1. Astrocalyx 
1. Stamens few, 8 to 12, twice as many as the petals. 
2. Flowers small; filaments short; anthers thick, broadly hatchet-shaped, 
introrse; stigma capitellate 2. Astronia 
2. Flowers large; filaments elongated; anthers narrowly linear; stigma 
punctiform. 
3. Leaves 3-nerved 3. Everettia 
3. Leaves 5- or 7-nerved 4. Beccarianthus 
1. ASTROCALYX Merrill 
ASTROCALYX CALYCINA (Vid.) comb. nov. (Plate XL) 
Astronia calycina Vid. Rev. PI. Vase. Filip. (1886) 136; Cogn. in 
DC. Monog. Phan. 7 (1891) 1095. 
Astrocalyx pleiosandra Merr. in Philip. Journ. Sci. 5 (1910) Bot. 203. 
Luzon, Province of Laguna, For. Bur. 22312 Mariano (leaf specimen 
only). For. Bur. 20361 Tabat (leaf specimen only). Bur. Sci. 8983 Fox- 
' Associate Professor of Botany, University of the Philippines, Manila, P. I. 
*DC. Monog. Phan. 7 (1891) 1092. 
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