LXXIV. RUBIACE^. 
13 
Uncaria.] 
country. Common. Singapore, Bukit Timah; Toas. Johor, Batu 
Pahat. Pahang, Sungei Jelai (Machado); Sungei Pahang (Watson). 
Malacca, Ayer Panas (Griffith); Durian Tunggul (Derry). Selangor, 
Kwala Lumpur; Semangkok; Perak, Larut and Batang Padang 
(Kunstler). Province Wellesley, Ara Kuda (Curtis); Penang Hill. 
Tringganu, Bundi (Rostados). Distrib. Borneo, Sumatra. 
(6) U. ferrea DC. Prodr. iv. 348; King, l.c. 131. 
Slender climber, hairy all over. Leaves ovate acuminate, base 
round or shortly narrowed, membranous; nerves 8 pairs, slender. 
Fig. 76. — Uncaria sclerophylla. 
elevate; 2-5 to 3-25 in. long, 1*35 to 2 in. wide; petioles -i to -2 in. 
long. Peduncles x in. long. Heads rather lax, 1-5 in. through in 
flower, 2 to 3 in. in fruit. Calyx short-stalked, *25 in. long, silky, 
lobes filiform longer than tube. Corolla -5 in. long, glabrous, 
lobes oblong, dull red. Capsule fusiform pubescent, 75 in. long; 
pedicels as long. Hub. Borders of woods and rivers in the low 
country. Pahang, Kwala Lipis; Kwantan (Foxworthy). Perak, 
road to Kwala Kangsa (Curtis); Larut (Kunstler). Kelantan, 
Kwala Aring (Yapp); Kwala Lebir (Gimlette). Penang (Curtis). 
var. tomentosa King, l.c. 
Leaves coriaceous, whole plant densely red-tomentose. Calyx 
