GRAMINEAE 59 
ENHALUs L. C. Richard 
Vallisneria sphaerocarpa Blanco Fl. Filip. (1837) 780 (sp. nov.); ed. 2 
(1845) 538; ed. 3, 3 (1879) 186—=ENHALUS ACOROIDES (Linn. f.) 
Rich. (2. koenigti Rich.). 
In shallow water of sheltered bays along the seashore through- 
out the Philippines. Blanco’s species is not listed in Index 
Kewensis. 
Illustrative specimen from Taytay Bay, Palawan, May, 1913 
(Merrill: Species Blancoanae No. 383). 
OTTELIA Persoon 
OTTELIA ALISMOIDES Pers.; Blanco Fl. Filip. (1837) 461; ed. 2 (1845) 
821; ed. 3, 2 (1878) 230. 
Ottelia ensiformis Blanco op. cit. 460 (sp. nov.) 320; 229=OTTELIA 
ALISMOIDES Pers. 
Ottelia alismoides Pers. is exceedingly variable in vegetatiee 
characters, depending largely on the depth of the water in which 
the plant grows. Blanco certainly correctly interpreted the 
species, but I can see no valid reason for considering his O. 
ensiformis other than a habitat form of Persoon’s species. It 
is common and widely distributed in the Philippines in stagnant 
pools and slow streams at low altitudes. 
- Tllustrative specimen from Umingan, Pangasinan Province, 
Luzon, May, 1914 (Merrill: Species Blancoanae No. 92). 
GRAMINEAE 
ZEA Linnaeus 
ZEA MAYS Linn.; Blanco FI. Filip. (1837) 686; ed. 2 (1845) 476; ed. 3, 
3 (1879) 90, t. 279. 
The Linnean species was correctly interpreted by Blanco. 
The species is cultivated throughout the Philippines, having 
been introduced from Mexico at an early date by the Spaniards. 
The common type found in the Philippines is the one distributed 
herewith. | 
Illustrative specimen from Manila, Luzon, January, 1915 
Meret: Species Blancoanae No. 793). | 
coix Linnaeus 
Coix lachryma Linn.; Blanco Fl. Filip. (1837) 688 (C. lachrima); ed. 2 
(1845) 478; ed. 3, 3 (1879). 92, t. 188=COIX LACHRYMA-JOBI Linn. 
This very characteristic species is common and widely dis- 
tributed in the Philippines. It is certainly an introduced plant, 
but also certainly of prehistoric introduction. 
Illustrative specimen from Manila, Luzon, October, 1913 
(Merrill: Species Blancoanae No. 269). 
