450 The Philippine Journal of Science 1919 



Philippine form. It is well characterized by its membranaceous, 

 slenderly acuminate, few-nerved leaves. 



TABERNAEMONTANA Linnaeus 

 TABERNAEMONTANA ECARINATA sp. nov. 



Frutex glaber ; f oliis charteceis, olivaceis, oblongis ad oblongo- 

 ellipticis, 7 ad 14 cm longis, apice late obtuseque acuminatis, 

 nervis utrinque 8 ad 10; infructescentiis circiter 6 cm longis, 

 haud ramosis, folliculis 2 gerentibus ; folliculis 2.5 ad 3 cm longis, 

 inaequilateralibus, ecarinatis, apice rostratis; seminibus circiter 

 18. 



A glabrous shrub, the branches slender, terete. Leaves char- 

 taceous, olivaceous, shining, equal, oblong to oblong-elliptic or 

 oblong-lanceolate, 7 to 14 cm long, 3 to 7 cm wide, base often 

 slightly inequilateral, somewhat acuminate, apex broadly and 

 obtusely acuminate; lateral nerves 8 to 10 on each side of the 

 midrib, distinct, anastomosing, the reticulations slender, lax; 

 petioles about 5 mm long. Inflorescences apparently very few- 

 flowered, the peduncles in fruit up to 6 cm long, simple, each 

 bearing a single pair of follicles but usually presenting one or 

 two scars of fallen pedicels. Persistent sepals ovate, about 2.5 

 mm long. Corolla-tube about 12 mm long, the lobes spreading, 

 narrow, about 1.5 cm long. Follicles yellow, 2.5 to 3 cm long, 

 1.5 to 2 cm wide, inequilateral, smooth, not at all keeled, some- 

 what compressed, one side nearly straight, the other semi- 

 circular, apex rather prominently rostrate. Seeds up to 18 in 

 each follicle, irregular, 7 to 8 mm long. 



Luzon, Ilocos Norte Province, between Bangui and Claveria, 

 Bur. Sci. 33022 (type), 33082 Ramos, August, 1918, in forests 

 along small streams at low altitudes. 



This species is strongly characterized by its rostrate, rather 

 many-seeded follicles, which are not at all keeled. In vegetative 

 characters it resembles some forms of Tabernaemontana panda- 

 caqui Poir. but differs entirely in its fruit characters. 



CONVOLVULACEAE 



IPOMOEA Linnaeus 

 IPOMOEA POLYMORPHA R. & S. Syst. 4 (1819) 254. 



Ipomoea heterophylla R. Br. Prodr. (1810) 487, non Ortega, 1800. 

 Convolvulus hrawnii Spreng. Syst. 1 (1825) 612, 

 Convulvulus rohertianus Spreng. op. cit. 5 (1828) 192. 



Luzon, Ilocos Norte Province, Burgos, Bur. Sci. 32945 Ramos, 

 July 25, 1918, in open dry places at low altitudes : Union Prov- 



