CONVOLVULACEAE 321 
Blanco and was thus considered by Fernandez-Villar. It is of 
local occurrence in the Philippines. 
Illustrative specimen from cultivated plants, Los Bajfios, La- 
guna Province, Luzon, March, 1915 (Merrill: Species Blanco- 
anae No. 839). 
LEPISTEMON Blume 
Polemonium obscurum Blanco Fl. Filip. (1837) 103 (sp. nov.) ; ed. 2 (1845) 
75; ed. 3, 1 (1877) 139=LEPISTEMON BINECTARIFERUM (Wall.) 
O. Ktze. (L. flavescens Blume). 
This species is rather widely distributed in the Philippines 
at low and medium altitudes in the settled areas, growing in 
thickets. Wallich’s specific name antedates Blume’s Lepiste- 
mon flavescens by about one year. : 
Illustrative specimen from Pasig, Rizal Province, Luzon, 
January, 1915 (Merrill: Species Blancoanae No. 794). 
CALONICTYON Choisy 
Convolvulus catharticus Blanco FI. Filip. (1837) 94 (sp. nov.) =Convol- 
vulus longiflorus Spreng.; Blanco Fl. Filip. ed. 2 (1845) 69; ed. 3, 
1 (1877) 1830=CALONYCTION ALBUM (Linn.) House. 
Blanco correctly reduced his new species, Convolvulus cathar- 
ticus, to C. longiflorus Spreng. in the second edition of the Flora 
de Filipinas; Sprengel’s species, however, was based on Ipo- 
moea longiflora R. Br., which is a synonym of Calonyction album 
(Linn.) House; see House in Bull. Torr. Bot. Club. 31 (1904) 
591. Fernandez-Villar considered it under R. Brown’s name, 
while I formerly placed it under Ipomoea glaberrima Boj., ap- 
parently a synonym of Calonyetion album House. 
Illustrative specimen from Taal Volcano, Batangas Province, 
Luzon, January, 1917 (Merrill: Species Blancoanae No. 1051). 
Convolvulus muricatus Blanco Fl. Filip. (1837) 92; ed. 2 (1845) 68; ed. 
3, 1 (1877) 127, t. $32, non Linn.=CALONICTYON ACULEATUM 
(Linn.) House (C. bona-nox Boj.). 
This species is common and widely distributed in the settled 
areas of the Philippines at low and medium altitudes, is cer- 
tainly an introduced plant in the Archipelago, and probably 
originated in tropical America. Its nomenclature is rather com- 
plicated, and it has many synonyms. The specific name adopted 
by Doctor House seems to be the oldest valid one for the species. 
Illustrative specimen from Antipolo, Rizal Province, Luzon, 
November, 1914 (Merrill: Species Blancoanae Ne: t7?)...632 
Convolvulus colubrinus Blanco FI. Filip. ed. 2 (1845) 66 (sp. nov.); ed. 
3, 1 (1877) 125, ¢. 315=CALONICTYON MURICATUM (Linn.) Don. 
Fernandez-Villar reduced this to Ipomoea muricata Jacq., — 
151862——21 
