500 Matenals for a Flora of the Malayan Peninsula. 



tic, compressed ; the pericarp fleshy, pale and covered with rusty setrf, 

 1-celled, 1-seeded, '65 to '8 in. long. 



Perak : King's Collector, Nos. 3315, 3770, 4868, 6549, 6933 : Scot- 

 techini, No. 2043 ; Wiay, No. 4168. 



This plant is known to the Malay population of Perak as the source 

 of Minyak Plang, a dark brown viscid oil which is in great repute for the 

 cure of certain skin diseases. An interesting note upon the plant and 

 its oil by Mr, E, M. Holmes of the Pliaimaceutical Society of London 

 is to be found in the Journal and Transactions of that Society, Vol. 

 LII, p. 389. The stigma in this species, prior to dissection, appears to 

 be sub-globular with a central groove ; and it is only after careful 

 maniputation that it is seen to be bent on itself. Some specimens of 

 this were by mistake issued from the Calcutta Herbarium under the 

 name Microstemon officinale, Holmes. 



12. Rhus, Linn. 

 Trees or shrubs, often with an acrid juice. Leaves alternate, simple 

 or 1-3 foliolate or pinnate ; leaflets entire or serrate. Floivers small, in 

 terminal and axillary panicles, polygamous. Calyx small, 4-6-parted, 

 persistent ; the segments unequal or equal, imbricate. Petals 4-6, equal, 

 spreading, imbricate. Stamens 4, 5, 6, or 10, inserted at the base of the 

 disc, free ; filaments subulate ; anthers short, imperfect in the 9 flower. 

 Ovary sessile, ovoid or globose, 1-celled : styles 3, free or curved, short 

 or long; stigmas simple or capitate; ovule pendulous from a basal 

 funicle. Drupe small, dry, compressed ; stone coriaceous, crustaceous 

 or bony. Seed pendulous from the funicle, testa membranous, coty- 

 ledons flattish ; radicle hooked, short, superior. — DiSTruB : about 114 

 species, mostly exti-a-tropical in both hemispheres, a few Malayan, some 

 from tropical Africa. 



Rhus Perak ensis, Scortechini MSS. A glabrous shrub climbing 

 to the extent of 15 to 40 feet. Leaves 8 to 12 in. long, unequally pin- 

 nate ; leaflets in rather distant pairs, opposite, thinly coriaceous, oblong, 

 shortly and bluntly acuminate, entire ; the base slightly oblique, 

 rounded or sub-cuneate ; main nerves 16 to 20 pairs, sub-horizontal, 

 rather prominent on the lower surface ; length 2'5 to 3'5 in., breadth 

 1 to 1"4 in. ; petiolules '1 to "15 in., the terminal one "3 or '4 in. 

 Panirles axillary and terminal, longer than the leaves, pedunculate, the 

 branches i-ather short, beai'ing the flowers on small ultimate racemes. 

 Flowers numerous, less than "1 in. in diam., on short minutely bracteo- 

 lulate pedicels. Calyx with 5 unequal oblong blunt spreading segments. 

 Pttals longer than the calyx, elliptic, blunt, pinnately nerved. Stamens 

 5 ; anthers broadly ovate, dorsifixed. Drupe compressed, obliquely reni- 

 form, orbiculai*, broader than long, glabrous, 2 in. across. 



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