CXXVIII. EUPHORBIAGEjE. 
Ptychopyxis.] 
295 
tomentose. Style-arms 3, short recurved. Fruit often large ovoid 
or pyriform, tomentose woody. Species 5 > Malay Peninsula and 
Sumatra. 
Leaves oblanceolate; nerves depressed above, 
reticulations prominent beneath; fruit large 
wrinkled . . . . • f 1 ) COStata 
Leaves oblanceolate-oblong, smooth above; reticu- 
culate beneath; fruit with long processes . . ( 2 ) P. caput-mcdusse 
Leaves smooth obovate large, not reticulate; fruit 
wrinkled.. • (3) P- Kmgn 
Leaves smooth narrow lanceolate; fruit small 
smooth.(4) P- angustifolia 
(1) P. costata Miq. FI. Ind. Bat. Suppl. 402; Hook. Ic. PI. 
t. 1703; Hook. fit. F.B.I. v. 455. 
Small tree about 40 ft. tall, stem 12 to 18 in. through, branchlets 
tomentose. Leaves crowded at ends of branches oblanceolate 
acuminate, glabrous above except the tomentose midrib, closely 
hairy on the midrib and more sparsely on the nerves, 17 pairs, 
elevate beneath, transverse nervules conspicuous beneath; 9 in. 
long, 2 in. wide; petioles thick, -25 in. long, tomentose. Male 
flowers densely tomentose terminal panicles, 3 in. long, about 8 
together. Flowers numerous shortly pedicelled, buds globose 
brown tomentose. Bracts linear-oblong, longer than pedicels. 
Sepals white inside elliptic or oblong. Stamens numerous shorter. 
Female flowers on separate trees in dense clusters on the stem, 
*5 in. through, tomentose. Bracts as in males. Sepals -25 in. 
long. Fruit ovoid beaked with the enlarged style, pale green densely 
tomentose (tomentum bright brown when dry) transversely wrinkled, 
x*5 in. long and wide. Hab. Woods and forests up to 2500 ft. 
altitude. Singapore, Garden Jungle; Chan Chu Kang; Bukit 
Mandai. Malacca (Griffith); Bukit Bruang (Holmberg); Sungei 
Hudang. Perak, Maxwell's Hill, Thaiping Hills; Larut (Kunstler). 
Dislrib. Sumatra. Native names : Kaliah Toah; Medarah. 
(2) P. caput-medusge Ridl. Mallotus ? caput-medusae Hook. 
fit. F.B.I. v. 443. _ 
Tree 80 to 100 ft. tall, stem 3 to 4 m. through. Leaves cori¬ 
aceous oblanceolate to oblong, tip round, base narrowed blunt, 
above glabrous, beneath shortly hairy; nerves elevate, about 
12 pairs, transverse nervules numerous elevate beneath; 6 to 
9 in. long, 3 to 3-5 in. wide; petioles stout tomentose, *5 to 1 in. 
long. Male flowers unknown. Female flowers in dense woolly 
racemes 1*5 in. long on the branches; pedicels short and thick. 
Sepals 5 to 7, ovate lanceolate woolly. Ovary ovoid woolly on 
an annular disc. Style arms stout recurved 3. Capsule globose, 
2-celled, 1-5 in. through, thickly covered with tomentose processes, 
thick at the base and narrowing upwards, *25 in. long. Seeds 
oblong, smooth, back rounded, *75 in, long. Hab. Forests. 
