186 THE AROIDS OF BORNEO. 



R. elliptica, n. sp. 



Leaf elliptic coriaceous apex mucronulate base rounded 

 6-7 inches Jong 3-2^ wide nerves very numerous and fine, 

 primary nerves no stronger than secondary ones, petiole 

 5-6 inches long, narrowly sheathed to the base of the 

 blade. Peduncle about 1 inch long, spathe 3-4 inches long 

 i inch thick boat-shaped cuspidate, cusp ^ inch long. 

 Spadix stout sessile. Pistils rounded at the top obscurely 

 hexagonal, stigma round sunk. 



Sarawak Bau ( Ridley > Allied to R. Maingayi, and 

 R. pteropoda Teysm. Endemic. 



R. Jlumi?iea, n. sp. 



Stem creeping ^ . inch through. Leaves elongate 

 lanceolate gradually acuminate narrow base acuminate 

 12-15 inches long 1-1^ wide midrib prominent, primary 

 nerves very numerous about 20 pairs, transverse nervules 

 conspicuous on the back, petiole slender 3-4 inches long 

 sheathing only at the base, knee | inch, long. The blade 

 bent at an angle with the knee. Peduncle 2-J inches long 

 slender, spathe 1-| inch long boat-shaped cuspidate cusp 

 | inch long. Spadix as long as the body of the spathe, 

 cylindric ^ inch thick pistils very small T X F inch across 

 rounded 6 angled. Stigma slightly elevated pulvinate. 



British North Borneo. At Bongaya, creeping on rocks 

 over hanging the Labuk river (Ridley). Endemic. 



Species with Pinnztifid Leaves* 



R. ffuegetii, Schott. Sarawak, (Beccari). Distrib. Malay 

 Peninsula. 



R. maxima, Engler. Bull. Soc. Tosc.di Rt. 1879,269. Sarawak 

 (Beccari). Distrib. New Guinea. 



U. Beccai'ii, Engler. Sarawak (Beccari). Distrib. Malay Penin- 

 sula. 



Jour. Straits Branch 



