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EUPHORBIACEAE 931 
ippines. Fernandez-Villar reduced it to Euphorbia laevigata 
Vahl, a synonym of E. atoto Forst. 
Illustrative specimens from Pasaquin, Ilocos Norte Province, 
Luzon, and from Punta de Azufre, Batangas Province, Luzon, 
October and November, 1916 (Merrill: Species Blancoanae Nos. 
997, 1040). 
Euphorbia parannaquensis Blanco FI. Filip. ed. 2 (1845) 286 (sp. nov.) ; 
ed. 3, 2 (1878) 165—=EUPHORBIA SERRULATA Reinw. 
Blanco’s specimens were from the town of Parafiaque im- 
mediately south of Manila, and Fernandez-Villar was correct 
in reducing it to Reinwardt’s species. It is widely distributed 
in the Philippines at low and medium altitudes, occurring in 
fallow lands and in open grasslands at low and medium altitudes. 
Illustrative specimen (a topotype) from Paranaque, Rizal 
Provinee, Luzon, October, 1914 (Merrill: Species Blancoanae 
No. 510). 3 
Euphorbia capitata Lam.; Blanco Fl. Filip. (1837) 411=EUPHORBIA 
HIRTA Linn.; Blanco op. cit. ed. 2 (1845) 286; ed. 3, 2 (1878) 166. 
Blanco correctly interpreted Lamarck’s species and in the 
second edition correctly reduced it to the Linnean one. The 
species is more commonly known as Euphorbia pilulifera Linn., 
but this is a synonym of Euphorbia hirta Linn., the latter having 
page priority. It is very common and widely distributed at 
low altitudes in the settled areas of the Philippines; certainly 
an introduced weed. 
Illustrative specimen from Manila, Luzon, October, 1913 (Mer- 
rill: Species Blancoanae No. 549). 
Euphorbia pentagona Blanco FI. Filip. (1837) 418; ed. 2 (1845) 287; ed. 3, 
2 (1878) 168, non Haw. =EUPHORBIA NERIIFOLIA Linn. 
This species is occasionally found in cultivation, but is not a 
native of the Philippines. The trunk and larger branches are 
terete, the younger branchlets stout and 5-angled, the angles. 
much more prominent in dried than in living material. Its 
common Tagalog name is sov0-soro or sorog-sorog. 
Illustrative specimen from Manila, Luzon, January, 1915 
(Merrill: Species Blancoanae No. 823). 
EUPHORBIA TIRUCALLI Linn.; Blanco Fl. Filip. (1837) 412 (tiracull) ; 
ed. 2 (1845) 287; ed. 3, 2 (1878) 167, t. 210. 
The Linnean species was correctly interpreted by Blanco. It 
is locally abundant in some towns in the Philippines and is 
widely distributed in the Archipelago; certainly a purposely in- 
troduced plant. In fifteen years residence in the Philippines 
