292 MERUILL. 
UMBELLIPERiE. 
# 
DIDISCUS DC. 
Didiscus saniculaefolius (Stapf) Traehymene mniculaefolia Stapf in Trans. 
Linn. Soc. Bot. IT. 4 (1894) 1G7; Hook. Icon. IV. 4 (1805) pL 2308, 
111 open heaths at 2,400 ni. alt, (No. G174), locallj' ahuiiJant, hut found only 
in the opon heaths associated with Gleichcnta, Lycopodium^ Diptcris, Vacc'uiiutn, 
Leptospennum, Jsaehne, Drosera, Patersonia, etc. 
While the ahove specimens differ slightl}' from the description and figure given 
by ^fopf, still I can detect no constant characters by which the Philippine form 
can be distinguished from the Borncan, and without comparison with the type 
material I <lo not care to describe the Halcon plant as a new species. The genus 
\<. new to the Philippine flora, and its discovery is another link in the chain of 
evidence regarding possible previous land connections with Borneo on the one 
hand, and with Australia on the other. Didiscus saniculaefolius was previously 
known only from Mount Kinabalu. North Borneo, being related to the Australian 
/>. hinuilis. Of the genus, about fourteen species are recognized, twelve in Aus- 
tralia, one in Xcw Caledonia and one in Mindoro and Borneo ; of the genus 
Traehymene^ in which the above species w^s placed b^' i^iapfy about twelve species 
are recognized, all the others confined to Australia. 
CLETHE-ACE^ll 
CLETHRA Linn. 
Clethra lancifolia Turcz. in Bull. Soc. Nat. Mose. 36- (186.3) 231. 
In forests at 700 m. alt. (No. 5575) ; also collected by MerrHt in June, 1906 
at 2,200 m. alt. (No. 4455). 
Previously known only from the mountains of Luzon and Negros, 
ElilCACE.F.. 
RHODODENDRON Linn. 
Rhododendron quadrasianum Vid. Kev. PI. Vase. Philip. (1880) 170. 
Terrestrial and epiphytic, mossy ridge-forcsts at 1,350 m. alt. (No. 6158); 
also collected by Mcrritt in forests at 1,000 m. alt. (No. 4455). 
On most of the higher mountains of the Philippines from northern Luzon to 
southern Mindanao. Endemic in tlie Philippines. 
Rhododendron rosmarinifolium Vid. 1. c. 172. 
In open heaths at 2,400 m. alt. (No. 5736). 
Previously known only from the mountains of northern Luzon ; the Halcon 
specimens not quite typical, the leaves shorter and broader than in specimens 
from northern Luzon. This is probably the form reported from "Dulangao" (a 
spur of Halcon) by Rendic, as the Bornean Rhododendron cuneifolium Stapf, and 
appears to be rather intermediate between R. rosmarinifolium and R, cuneifolium, 
but nearer the former. 
GAULTHERIA Linn. 
Gaultheria cumingiana Vid. Phan. Cuming. Philip. (1885) 184. 
Subscandent in ridge forests 1,800 to 2,200 m. alt. (No. 5725). 
Previously known only from the mountains pf Luzon and Formosa. 
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