THE PHILIPPINE 
Journal of Science 
C. Botany 
VOL. XII MAY, 1917 No. 3 
TWO NEW GENERA AND FOUR NEW SPECIES OF PHILIPPINE 
COMPOSITAE 
By E. D. Merrill’ 
{From the Botanical Section of the Biological Laboratory, Bureau of 
■ Science, Manila, P. I.) 
TWO PLATES 
In view of the facts that the Compositae is a family represented 
in the Philippines and in the Malayan region generally by com- 
paratively few genera and species; that few of the genera are 
confined to this particular region; and that a high percentage 
of the species are manifestly introduced ones here, it is rather 
surprising that our recent collections should present two appar- 
ently undescribed generic types from the Philippines. There are 
recorded to-day from the Philippines about one hundred forty 
species of Compositae, of which but about 35 per cent are en- 
demic. In this family it is now comparatively rare that either 
new species or those previously described from extra-Philippine 
material are discovered in the Archipelago. 
In the present paper I present descriptions and figures of two 
new genera, while for convenience I add the descriptions of two 
other new species in the well-known genus Gynura and record 
two representatives of other genera as new to the Philippine 
flora. The drawings accompanying the present paper were made 
by Mr. J. K. Santos, assistant in the botanical department. Col- 
lege of Liberal Arts, University of the Philippines. 
GUERREROIA genus novum 
{Heliantheae-Coreopsidinae ) 
Capitula heterogama, radiata, floribus radii paucis (4 vel 5) 2 
sterilibus discique ^ fertilibus. Involucrum parvum, bracteis 
2-seriatis, basi brevissime connatis, parum inaequalibus, additis 
149170 
’ Professor of botany, University of the Philippines. 
117 
