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SERTULUM BONTOCENSE. ^^^^P^ 97 
APOCYNACEAE. 
TRACHELOSPERMUM Leraaire. 
Trachelospermum vanoverberghil sp, nov. 
Frutex scandens, glaber; foliis oblongo-ellipticis ad oblongo- 
lanceolatis, nitidis, utrinque aiigustatis, basi acutis, apice acum- 
inatis, usque ad 7 cm longis ; cymis axillaribus terminalibusque, 
longe pedunculatis, paucifloris; floribus circiter 18 mm diametro. 
A slender, glabrous, woody vine 2 to 3 m high, or < ?) longer, 
the branches slender, brown or reddish-brown. Leaves oblong- 
elliptic to oblong-lanceolate, 3 to 7 cm long, 1 to 2.5 cm wide, 
narrowed at both ends, base acute, apex shortly and obtusely 
acuminate, shining, the lower surface a little paler than the 
upper, when young membranaceous, soon becoming chartaceous 
or somewhat coriaceous; nerves 7 to 10 on each side of the 
midrib, rather distant, slender, straight, anastomosing, the 
reticulations lax; petioles about 3 mm long. Cymes mostly 
terminal, sometimes axillary, solitary, few-flowered; peduncles 
slender, 1.5 to 3.5 cm long, trichotomous and 3-flowered, or the 
branches themselves again trichotomous, each branchlet bearing fl 
3 flowers, the pedicels slender, 5 to 10 mm long. Sepals oblong- 
ovate, acute, about 2.5 mm long. Corolla-tube about 5 mm long, 
about 3 mm in diameter in the more or less inflated middle, 
glabrous inside and outside, the lobes spreading, strongly 
obliquely obovate, about 9 mm long, 6 to 7 mm wide, throat naked, 
not villous. Anthers inserted near the middle of the tube, 
included, lanceolate, acuminate, 3 mm long, cells produced at the 
base, adherent to the stigma; style slender, 1 to 1.5 mm long. 
Follicles unknown. Flowers white and pink. 
Luzon, Bontoc Subprovince, Bauco, Vanoverhergh 4^2, 12S0 (type), 
April, 1910, and June, 1911, altitude 1,450 to 1,650 m, in forests and on 
hillsides: Benguet Subprovince, Baguio, Williams 1160, June 22, 1904, 
Bur. ScL 14084 Robinson, May, 1911. I suspect also that Loher S880, from 
Mount Arayat, Province of Pampanga, Luzon, is also referable here, of 
which a small fragment is in our herbarium. It was determined at Kew 
as T rack elos peranum fragrans Hook. f. 
The species above described is allied to Traclielottperinum frayram 
Hook, f., differing from that species especially in its corolla-tube and 
throat being quite glabrous; it is also manifestly allied to T. jaaminoidea 
Lemaire of China, but seems to be sufficiently distinct from that species. 
The only representative of the genus for the Philippines, one species 
previously described, T. philippineme Elm., being a synonym of Micreekiten 
achrieckii Rolfe. 
