94 ON THE FLORA OF BORNEO. 



VITACEAE. 



Ampelocissus, Planchon. 



Ampelocissus pedicellata, sp. nov. § Kalocissus. 



Frutex scandens partibus junioribus et inflorescentiis et 

 petiolis et petiolulis et foliorum laminis costa nervisque ferru- 

 gineo-arachnoideo-villosis ; foliis palmato-pedato-7-f oliolatis, 

 foliolis oblongis, coriaceis, usque ad 20 cm. longis, tenuiter 

 acuminatis, basi plus minusve inaequilateralibus, acutis, vel 

 acuminatis, margine distanter spinuloso-dentieulatis vel in- 

 tegris, nervis utrinque circiter 9 ; inflorescentiis ut videtur 

 longe pedunculatis, racemis nnmerosis, confertis, 2.4 ad 3.5 cm. 

 longis, racemose dispositis; floribus glabris, 4-meris, omnibus 

 breviter pedicellatis ; petalis 2 ad 2.5 mm. longis, oblongis. 



A scandent shrub, the younger parts, inflorescences, 

 petioles, petiolules, and the midrib and nerves on both sur- 

 faces of the leaves densely villous with cobweb-like ferruginous 

 hairs, these in age often pale in color. Leaves apparently 

 long-petioled, the leaflets 7, the three middle ones with petiolules 

 2.5 to 3.5 cm. in length, the two lateral ones on each side 

 on a common branch about as long as the central petiolules, 

 their petiolules 5 to 10 mm. long, the leaflets coriaceous, dark- 

 brown or nearly black when dry, oblong, 15 to 20 cm. long, 

 5.5 to 8 cm. wide, base acute or acuminate, usually more or 

 less inequilateral, apex slenderly and sharply acuminate, mar- 

 gins distantly spinulose-dentate by the excurrent lateral nerves, 

 or subentire ; lateral nerves about 9 on each side of the midrib, 

 very prominent on the lower surface as are the primary reti- 

 culations. Inflorescences apparently long-peduncled, the up- 

 per 15 cm. bearing numerous, spreading-ascending, 2.5 to 3.5 

 cm. long racemes, the common rachis and those of the racemes 

 densely ferruginous-lanate. Flowers numerous, entirely gla- 

 brous, their pedicels 1.5 to 2 mm. long. Calyx about 1 mm. 

 in diameter, the lobes four, rounded, obscure. Petals 4, oblong, 

 obtuse or acute, 2 to 2.5 mm. long. Ovary glabrous, somewhat 

 ellipsoid, the style about 0.6 mm. long. 



Sarawak, without definite locality, Native collector 21fl 

 (Bur. Sci.). 



A most characteristic species at once distinguished from 

 all described forms by its pedicelled flowers. It is suspected 

 that it is the same as the form indicated by Planchon in DC. 

 Monog. Phan. 5 (1887) 414 as "A. sp. nova. Borneo (Beccari, 

 no. 178, in herb. Kew)," but not described by him. 



Ampelocissus tenuis, sp. nov. § Kalocissus. 



Scandens, tenuis, ramulis circiter 1 mm. crassis, partibus 

 junioribus et petiolis et inflorescentiis et foliolis subtus in costa 

 nervisque dense ruf o-lanatis ; foliis pedato-palmato-5-f oliolatis, 



Jour. Straits Branch 



