168 'J'he Philippine Journal of Science 1917 
& Edano, September 9, 1916, on forested slopes at medium altitudes, locally- 
known to the Balugos as taratapak. 
The alliance of this species is manifestly with Plectronia gynochthodes 
Baill. (P. umbellata K. Sch.), from which it is readily distinguished by 
its differently shaped, very coriaceous leaves and by the prominent glands 
in the axils on the lower surface. 
PLECTRONIA SU BSESSI LI FOLIA sp. nov. 
Frutex circiter 2 m altus, glaber, ramis teretibus, ramulis 
plus minusve compressis; foliis coriaceis vel subcoriaceis, bre- 
vissime petiolatis, ellipticis ad obovato-ellipticis, usque ad 9 cm 
longis, basi acutis, apice obtusis ad latissime et obscure acumina- 
tis, in siccitate olivaceis vel brunneo-olivaceis, nitidis, nervis 
utrinque 5 vel 6, subtus prominentibus, in axillis prominente 
glandulosis ; fructibus axillaribus, pedicellatis, solitariis vel 
subsolitariis, obconicis, truncatis, circiter 7 mm longis, promi- 
nente longitudinaliter 8-carinatis. 
A glabrous erect shrub about 2 m high, the branches terete, 
grayish, the branchlets more or less compressed, sometimes sul- 
cate, brownish-olivaceous, smooth. Leaves coriaceous or sub- 
coriaceous, elliptic to obovate-elliptic, brownish-olivaceous and 
shining when dry, 7 to 9 cm long, 3.5 to 4.5 cm wide, base acute, 
apex obtuse to very broadly and obtusely acuminate; lateral 
perves 5 or 6 on each side of the midrib, prominent on the 
lower surface, somewhat ascending, slightly curved, scarcely 
anastomosing, prominently glandular in the axils, the secondary 
nerves and reticulations obsolete; petioles 2 mm long or less; 
stipules ovate-lanceolate, acuminate, 4 mm long. Fruits axillary, 
solitary or rarely two on a very short peduncle, yellow when 
mature, dark brown when dry, obconic, truncate, about 7 mm 
long, with eight prominent longitudinal keels especially promi- 
nent at the tip of the fruit, narrowed below, the pedicels about 
5 mm long. 
Luzon, Ilocos Norte Province, Burgos, Bur. Sci. 27205 Ramos & Edano, 
March 2, 1917, in thickets at low altitudes. 
In appearance this species approximates Plectronia obovatifolia Merr., 
but is easily distinguished by its more numerous lateral nerves. The tur- 
binate, truncate, prominently keeled fruits are most characteristic, the keels 
being evident in the very youngest fruits. 
IXORA Linnaeus 
IXORA ILOCANA sp. nov. 
Frutex parvus, erectus, glaber, ramis ramulisque teretibus; 
foliis oblongis, chartaceis, breviter petiolatis, usque ad 6 cm lon- 
gis, acutis vel minute acuminatis, basi acutis, nervis utrinque 
circiter 12, tenuibus, anastomosantibus ; stipulis circiter 3 mm 
longis, e basi ovatis longe tenuiter caudato-acuminatis ; infruc- 
