316 The Philippine Journal of Science lais 



ARALIACEAE 

 ACANTHOPHORA genus novum 



Calycis margo 5- vel 6-dentatus. Petala 5 vel 6, imbricata, 

 acuta vel obtusa, basi lata afRxa. Stamina 5 vel 6; filamenta 

 filiformia; antherae ovoidae, in alabastro inflexae. Discus con- 

 vexus. Ovarium 5- vel 6-loculare; styli 5 vel 6, erecti, a basi 

 distinct!; stigmata terminalia, parva. Fructus ovoideus, in sic- 

 citate obtuse 5- vel 6-angulatus. — Frutex alte scandens aculeis 

 parvis armatus. Folia ampla, alterna, tripinnata. Umbellulae 

 paniculatae. Pedicelli sub flore articulati. Floras hermaphro- 

 diti. 



ACANTHOPHORA SCANDENS sp. nov. 



Frutex scandens, ramis et paniculis et foliis ad petiolo rhachi- 

 busque primariis et secundariis et ad costa subtus spinis numero- 

 sis parvis recurvatis armatis; foliis amplis, tripinnatis, usque 

 ad 1.5 m longis; foliolis numerosis, ovatis ad ovato-lanceolatis, 

 acuminatis, submembranaceis, 7 ad 14 cm longis, basi rotundatis 

 vel subcordatis, margine spinuloso-dentatis ; paniculis terminali- 

 bus, amplis, usque ad 1 m longis; umbellulis numerosis, circiter 

 20-floris, pedunculatis ; floribus 5- vel 6-meris, petalis imbricatis. 



A scandent, sparingly branched, aculeate vine, sprawling over 

 thickets, the stems about 2.5 cm in diameter, these, the petioles, 

 primary and secondary leaf-rachises, petiolules, midribs of the 

 leaflets beneath, and the inflorescences armed with short, stout, 

 sharp, scattered but numerous, recurved spines, otherwise 

 entirely glabrous. Leaves alternate, 1 to 1.5 cm long, triangular 

 in outline, at least tripinnate, the lower primary pinnae long, 

 the upper ones gradually shorter; petioles stout, aculeate, the 

 lower 6 to 8 cm split on the upper side and with 1 cm wide 

 wings (stipules) which surround the stem at the base, the lower 

 ultimate divisions of the leaf odd-pinnate, the upper ones trifo- 

 liolate. Leaflets ovate to elliptic-ovate or ovate-lanceolate, sub- 

 membranaceous, 7 to 14 cm long, 3 to 5 cm wide, the apex 

 strongly acuminate, the base broad, rounded or subcordate, the 

 margins rather finely spinulose-denticulate, glabrous and some- 

 what shining, the midrib beneath and more rarely also on the 

 upper surface with few, scattered, recurved spines; nerves 5 to 

 7 on each side of the midrib, rather prominent, anastomosing; 

 petiolules 3 to 10 mm long. Panicles terminal, ample, pinnately 

 compound, up to about 1 m in length, the branches alternate, 

 opposite, or somewhat whorled, the primary ones up to 40 cm 

 in length. Umbels numerous, racemosely arranged on the ulti- 

 mate branchlets, each about 20-flowered, their peduncles 1 to 



