396 SPECIES BLANCOANAE 
mon and widely distributed in the Philippines in the settled 
areas at low altitudes and is readily recognized among all the 
Philippine Convolvulaceae by its winged stems, a character men- 
tioned by Blanco and by Llanos in the three descriptions cited 
above; the descriptions otherwise agree with Operculina tur- 
pethum S. Manso. 
Illustrative specimen from Antipolo, Rizal Province, Luzon, 
December, 1914 (Merrill: Species Blancoanae No. 554). 
HEWITTIA Wight & Arnott 
Convolvulus hederaceus Blanco Fl. Filip. (1837) 90; ed. 2 (1845) 66; ed. 
3, 1 (1877) 124, non Linn. =HEWITTIA SUBLOBATA (Linn. f.) O, 
Ktze. (H. bicolor Wight). 
This species is common and widely distributed in open grass- 
lands throughout the settled areas of the Philippines at low and 
medium altitudes. Blanco’s description, although short, unmis- 
takably applies to Hewittia sublobata O. Ktze. 
Illustrative specimen from Manila, Luzon, January, 1915 
(Merrill: Species Blancoanae No. 698). 
JACQUEMONTIA Choisy 
Convolvulus valerianoides Blanco FI. Filip. (1837) 90 (sp. nov.) =Convol- 
vulus boerhaavioides Blanco op. cit. ed. 2 (1845) 67 (nom. nov.); ed. 
3, 1 (1877) 125=JACQUEMONTIA PANICULATA (Burm. f.) 
Hallier f. (Breweria valerianoides F.-Vill.). 
In Index Kewensis Convolvulus valerianoides Blanco is reduced 
to Evolvulus alsinoides Linn., and C. boerhaavioides Blanco, 
which was merely a change of name for C. valerianoides, to Bre- 
weria valerianoides F.-Vill., as a distinct species, following 
Fernandez-Villar. The species is, however, the widely distri- 
buted Jacquemontia paniculata (Burm.) Hallier f. 
Illustrative specimen (topotype of Blanco’s species), from 
Punta Santiago, Batangas Province, Luzon, February, 1915 
(Merrill: Species Blancoanae No. 822). 
HYDROPHYLLACEAE 
HYDROLEA Linnaeus 
Hydrolea arayatensis Blanco Fl. Filip. (1837) 211 (sp. nov.) —HYDROLEA 
ZEYLANICA (Linn.) Vahl; Blanco op. cit. ed. 2 (1845) 148 (zeila- 
-. nica); ed. 3, 1 (1877) 266. 
Nama jamaicensis Blanco Fl. Filip. (1837) 211; ed. 2 (1845) 148; ed. 3, 
1 (1877) 266, non Linn. =HYDROLEA ZEYLANICA (Linn.) Vahl. 
The species that Blanco described as new, Hydrolea arayat- a . 
ensis, in the first edition of his Flora de Filipinas, he correctly — 
reduced in the second edition to H. zeylanica (L.) Vahl. The 
