APOCYNACEAE 311 
five or more pairs, narrow, lanceolate, entire, glabrous, subses- 
sile; with the further information that it was a shrub a yard 
or more in height, growing in Cebu, the leaves fragrant, 3 to 
4 inches long, half an inch wide, and locally known as layo. A 
comprehensive botanical exploration of Cebu may yield material 
and data by which the species can be interpreted. It is cer- 
tainly not Alyxia odorata Wall. where it was placed by Fernandez- 
Villar. 
CERBERA Linnaeus 
CERBERA MANGHAS Linn.; Blanco FI. Filip. (1837) 125; ed. 2 (1845) 
89; ed. 3, 1 (1877) 161. 
Elcana seminuda Blanco Fl. Filip. ed. 2 (1845) 584 (gen. et sp. nov.) ; ed. 
3, 3 (1879) 267=CERBERA MANGHAS Linn. 
Blanco’s description of Cerbera manghas is very poor, but 
apparently applies to the Linnean species. Fernandez-Villar re- 
duced Elcana seminuda to Cerbera lactaria Ham.—Cerbera odol- 
lam Gaertn.—Cerbera manghas Linn., and there is scarcely any 
doubt but that this is the correct disposition of it. The only 
possible objection to the reduction is Blanco’s statement that his 
material was from Angat, Bulacan Province, Luzon, a place well 
in the interior, while Cerbera manghas Linn. normally grows 
only near the seashore. Cerbera manghas Linn. is the only 
Philippine species known to me that conforms at all with Blanco’s 
description. Cerbera manghas Linn. was based on an actual 
specimen collected by Osbeck in Java, but he included a literature 
reference to Tabernaemontana in the original description. Vale- 
ton [Ann. Jard. Bot. Buitenz. 12 (1905) 245] separates the 
eastern Malayan form from that of India and western Malaya, 
calling the former Cerbera lactaria Ham., and the latter C. 
odollam Gaertn. The Philippine form is all apparently refer- 
able to Cerbera lactaria Ham., as interpreted by Valeton, but 
I cannot distinguish it from C. manghas Linn. Along the sea- 
shore throughout the Philippines. 
Illustrative specimen from Taytay, Palawan, May, 1913 
(Merrill: Species Blancoanae No. 318). 
THEVETIA Linnaeus 
- > Gerbera thevetia Linn.; Blanco FI. Filip. (1837) 125 (thebethia); ed. 2 
(1845) 89; ed. 3, 1 (1877) 162, t. 45=THEVETIA PERUVIANA 
(Pers.) Merr. in Philip. Journ. Sci. 9 (1914) 130 (Cerbera peruviana 
Pers. Syn. 1 (1805) 267; Thevetia nereifolia Juss. ex Steud. Nomencl. 
ed. 2, 2 (1840) 680). 
The Linnean species was correctly interpreted by Blanco, but 
unless the combination Thevetia thevetia (Linn:) Millsp. be 
