52 The Philippine Journal of Science wis 



bluish-green, when dry oblong-cylindric, apiculate, about 4 cm 

 long, 1.5 to 2 cm in diameter, somewhat exserted from the calyx, 

 the calyx-lobes ovate, acute, about 1.5 cm long. 



Luzon, Ifugao Subprovince, Mount Polis, Bur. Sci. 17938 McGregor, 

 February 15, 1913. 



A species somewhat resembling and manifestly closely allied to Fagraea 

 longiflora Merr., from Mount Banajao, Luzon. It differs, however, in its 

 somewhat exserted fruits and in its vegetative characters, the leaves of the 

 two being entirely different in shape. 



APOCYNACEAE 



ALYXIA Banks 

 ALYXIA REVOLUTA sp. nov. 



Frutex scandens, glaber, ramis crassis, quadrangulatis ; foliis 

 quaternatis, anguste obiongis, crassissime coriaceis, usque ad 18 

 cm longis, obtusis, basi acutis et plus minusve decurrentibus, 

 margine valde revolutis, supra olivaceis, nitidis, subtus glaucis; 

 nervis lateralibus numerosis, supra obscureis, subtus obsoletis; 

 petiolo 3 ad 4 cm longo; infructescentiis axillaribus, solitariis, 

 ramosis, 3 ad 4 cm longis; fructibus ellipsoideis, circiter 1.4 cm 

 longis, apiculatis, vel dispermis et in medio constrictis. 



A scandent glabrous shrub, the branches stout, distinctly 4- 

 angled, up to 1 cm in diameter, the ultimate parts 4 to 5 mm 

 in diameter, the internodes 4 to 8 cm long. Leaves 4-nate, very 

 thickly coriaceous, narrowly oblong, 13 to 18 cm long, 3.5 to 5 

 cm wide, obtuse, base acute and usually somewhat decurrent, the 

 margins very prominently revolute, the midrib very prominent, 

 the upper surface olivaceous, shining, the lower glaucous ; lateral 

 nerves numerous, slender, obscure on the upper surface, obsolete 

 on the lower ; petioles very stout, 3 to 4 cm long. Cymes axillary, 

 solitary, their peduncles 1 cm long or less, the branches usually 

 3, short, the bracteoles persistent. Fruits ellipsoid, when fully 

 mature black or dark-purple, the immature ones yellowish-brown 

 when dry, about 1.4 cm long, somewhat wrinkled, stipitate, apic- 

 ulate, 1-seeded, or sometimes constricted in the middle and 2- 

 seeded. 



Luzon, Tayabas Province, Mount Cadig, Bur. Sci. 25515 Yates, December 

 12, 1914, in the mossy forest, altitude at least 800 meters. 



A most characteristic species, readily distinguished by its narrowly 

 oblong, very thickly coriaceous, stiff leaves which are glaucous beneath, 

 the nerves here obsolete, but especially by the very strongly revolute mar- 

 gins. Its alliance is with Alyxia sibuyanensis Elm. 



