DIPTEROCARPACEAE 269 
This is of wide distribution in the Philippines, extending from 
northern Luzon to Mindanao and Palawan. It is almost univer- 
sally known as panao, and this native name is rarely applied to 
any other species and then usually through error. Dzipterocar- 
pus fulvus Blume (1856) and D. velutinus Vidal (1886) are 
exact synonyms. 
Illustrative specimen from Bataan Province, Luzon, July, 1914 
(Merrill: Species Blancoanae No, 147); Rizal Province, Luzon, 
March, 1915 (Merrill: Species Blancoanae No. 910). 
ANISOPTERA Korthals 
Mocanera thurifera Blanco Fl. Filip. (1837) 446 (sp. nov.) =Diptero- 
carpus thurifer Blanco op. cit. ed. 2 (1845) 310 (comb. nov.) ; ed. 3, 
2 (1878) 212, t. 264—=ANISOPTERA THURIFERA (Blanco) Blume. 
Mocanera mayapis Blanco Fl. Filip. (1837) 449 (sp. nov.) =Dipterocarpus 
mayapis Blanco op. cit. ed. 2 (1845) 310 (comb. nov.) ; ed. 3, 2 (1878) 
212—ANISOPTERA THURIFERA (Blanco) Blume. 
This species is common and widely distributed in the Philip- 
pines at low altitudes, ascending in forests to 750 meters. There 
is no valid reason for considering Mocanera mayapis Blanco= 
Dipterocarpus mayapis Blanco other than a synonym of Anisop- 
tera thurifera (Blanco) Blume. The most commonly used native 
names for the species are mayapis and palosapis. 
Illustrative specimen from Umingan, Pangasinan Province, 
Luzon, May, 1914 (Merrill: Species Blancoanae No. 405). 
HOPEA Roxburgh 
Mocanera plagata Blanco FI. Filip. (1837) 447 (sp. nov.) = Dipterocarpus 
plagatus Blanco op. cit. ed. 2 (1845) 311 (comb. nov.) ; ed. 8, 2 (1878) 
212—=HOPEA PLAGATA (Blanco) Vidal. 
This valuable timber tree is widely distributed in the Philip- 
pines, being one of the characteristic species of the primeval 
forest at low and medium altitudes. It is commercially known 
as yacal, and its timber enters the Manila market in large quanti- 
ties. Blanco’s species was erroneously reduced by Fernandez- 
Villar to Shorea reticulata Thwaites, a species that does not 
extend to the Philippines. . . 
Illustrative specimen from Rizal Province, Luzon, November, 
1914, there known as yacal or saplongan (Merrill: Species Blan- 
coanae No. 109). 
SHOREA Roxburgh 
Mocanera polysperma Blanco Fl. Filip. (1837) 448 (sp. nov.) =Diptero- 
carpus polyspermus Blanco op. cit. ed. 2 (1845) 812 (comb. nov.) ; 
ed. 3, 2 (1878) 213=SHOREA POLYSPERMA (Blanco) Merr. (Hopea 
tangili Blume). ; 
This valuable timber tree is widely distributed in the Philip- 
