THE AROIDS OF BORNEO. 171 



C. Lingua, Engler. Sarawak (Beccari). Rejang Sibu (Haviland 

 3129). 



Endemic. 



C. auriculata, Engler. Sarawak (Beccari). 

 Endemic. 



C. spathulata, Engler. Sarawak (Beccari). 

 Endemic. 



Typhonium. 



Small aroids usually weeds of cultivation. 



T. trilobatum, Schott. Sarawak (Beccari). Bail, (Ridley). 



T. motley anum, Schott. Borneo (Motley). 



Amoephophallus. 



Engler records only one species of this genus from Borneo, 

 but there are doubtless more. They are seldom met with in 

 flower, I found two in leaf. 



A. giganteus, Bl. Sarawak (Beccari), 

 Distrib. Java. 



Ariscema. 



A. umbrina, n.sp. Root stock short with numerous woolly roots. 



Leaves 4 or 5 ; young ones ovate acuminate entire 3 

 inches long, 1^ wide ; older ones trifid lobes oblong or 

 lanceolate acuminate, 5 inches long 1^ inch wide, 

 base narrowed into a petiolule ^ mch long, tip acute 

 with a slender awl-shaped point J inch long, side 

 lobes macquilateral nearly sessile, nerves 3 or 4 pairs 

 joining an intramarginal one, petiole 5 inches long, all 

 light green. Peduncle 7 inches long, spathe tube green 

 l^inch long, limb ovate 1-1^ inch long, tipped with a 

 slender point ^ inch long, deep brown spotted with 

 light green. Spadix appendage filiform 2 inches long 



B. A. Soc, No. 44, 1905, 



