CONVOLVULACEAE 325 
areas of the Philippines at low altitudes. By Fernandez-Villar 
it was reduced to Ipomoea angustifolia Jacq. 
Illustrative specimen from Angat, Bulacan Province, Luzon, 
December, 1914 (Merrill: Species Blancoanae No. 679). 
Chironia capsularis Blanco FI. Filip. (1837) 102 (sp. nov.) =Chironia 
lanosanthera Blanco op. cit. ed. 2 (1845) 71 (nom. nov.); ed. 3, 1 
(1877) 132, t. 261, f. 1=MERREMIA NYMPHAEIFOLIA (Blume) 
Hallier f. 
This species was reduced by Fernandez-Villar to Ipomoea 
peltata Choisy, to which Merremia nymphaeifolia Hallier f. is 
very closely allied. The latter, however, has yellow, not white 
flowers. It is locally abundant and of very wide distribution 
in the Philippines at low and medium altitudes. 
Illustrative specimen from Los Banos, Laguna Province, 
Luzon, November, 1915 (Merrill: Species Blancoanae No. 952). 
Convolvulus distillatorius Blanco Fl. Filip. (1837) 95 (sp. nov.); ed. 2 
(1845) 70; ed. 3, 1 (1877) 130=MERREMIA DISTILLATORIA 
(Blanco) comb. nov. (Merremia similis Elm.). 
This species was reduced by Fernandez-Villar to Ipomoea 
paniculata Linn.=Stictocardia campanulata Merr. in Philip. 
Journ. Sci. 9 (1914) Bot. 133; S. tiliaefolia (Desr.) Hallier f., 
a species that occurs in the Philippines but one to which Blanco’s 
description does not apply. The plant described as Merremia 
similis Elm. Leafl. Philip. Bot. 1 (1908) 335 agrees in all respects 
with Blanco’s description and occurs in the Visayan Islands 
from whence Blanco secured his specimens. It extends north- 
ward to Tayabas and Laguna Provinces, Luzon. Blanco’s name 
is here accepted for the species. 
Illustrative specimen from near Malicboi, Tayabas Province, 
Luzon, December, 1914, comm. D. L. Topping (Merrill: Species 
Blancoanae No. 728). 
OPERCULINA S. Manso 
Convolvulus maximus Blanco FI. Filip. (1837) 91; ed. 2 (1845) 67; ed. 3, 
1 (1877) 127, non Linn. f., nec Rach Hea =OPERCULINA TUR- 
PETHUM (Linn.) S. Manso: 
Ipomoea reptans Llanos Frag, Pl. Filip. (1851) 55; F -Vill. & Naves in 
Blanco Fl. Filip. ed. 3, 4* (1880) 39, non ‘Poir. =OPERCULINA 
TURPETHUM (Linn.) S. Manso. 
Ipomoea ventricosa Llanos op. cit. 56, 40, non G. Don =OPERCULINA TUR- 
PETHUM (Linn.) S. Manso. 
These reductions were made by Fernandez-Villar (Ipomoea 
turpethum R. Br.—Operculina turpethum S. Manso), and they — 
are certainly correct. _Operculina turpethum S. Manso is com- 
