ASCLEPIADACEAE 315 
_ CALOTROPIS R. Brown 
Asclepias gigantea Willd.; Blanco Fl. Filip. (1887) 207; ed. 2 (1845) 146; 
ed. 3, 1 (1877) 262, t. 258=CALOTROPIS GIGANTEA Dryand. 
This species is of local occurrence in the Philippines, appar- 
ently always planted. It is certainly not a native of the Archi- 
pelago, but a purposely introduced one. 
Illustrative specimen from Manila, Luzon, April, 1914 
(Merrill: Species Blancoanae No. 221). 
SARCOSTEMMA R. Brown 
Cynanchum viminale Blanco Fl. Filip. (1837) 203; ed. 2 (1845) 143; ed. 
3, 1 (1877) 257 (Cinanchum), non Linn. =SARCOSTEMMA BRUNO- 
NIANUM W. & A. 
Blanco’s material was from Punta de Azufre, Batangas Prov- 
ince, Luzon, and the species is now known from Corregidor and 
the Bataan coast, both points north of Batangas. Fernandez- 
Villar erroneously considered that Blanco’s interpretation of 
Cynanchum. viminale Linn.—Sarcostemma viminale R. Br. was 
correct, but the Linnean species is confined to South Africa. 
The species is at least the Philippine form figured by Vidal 
Sinopsis Atlas t. 68, f. H as Sarcostemma brunonianum W. & A., 
and the one represented by recently collected specimens so 
distributed. 
Illustrative specimen from Punta de Azufre, Batangas Prov- 
ince, Luzon, (a topotype) October, 1916, abundant in thickets 
near the sea (Merrill: Species Blancoanae No. 1004). 
GYMNEMA R. Brown 
Asclepias daemia Blanco Fl. Filip. (1837) 208; ed. 2 (1845) 146; ed. 3, 
1 (1877) 263, t. 402 (as Bidaria inodora Dene.) non Forsk.=GYM- 
NEMA TINGENS (Roxb.) W. & A. 
Blanco’s description is very imperfect, but I am satisfied to 
follow Fernandez-Villar in this reduction as the description, so 
far as it goes, applies to this species. Gymnema tingens occurs 
near Manila and is widely distributed in the Philippines at low 
and medium altitudes, although nowhere abundant. 
Illustrative specimen from Maragondong, Cavite Province, 
Luzon, October, 1914 (Merrill: Species Blancoanae No. 150). 
SARCOLOBUS R. Brown 
Asclepias peregrina Blanco FI. Filip. (1837) 207 (sp. nov.) ; ed. 2 (1845) 
146; ed. 3, 1 (1877) 262=SARCOLOBUS PEREGRINUS Schltr. 
Blaneo’s specimens were from Bauang, Batangas Province, 
Luzon, the plant growing in swampy places near the seashore; 
about Manila Bay it grows in thickets bordering the mangrove 
swamps, well within the influence of salt water. It was reduced 
