32 THE GESNERACE^E OF THE MALAY PENINSULA. 



Endemic on rocks. This is the biggest species of 

 Didymocarpus and the most woody one known to me. 

 It is also peculiar in having the two lips of the corolla 

 mouth pressed together, quite like those of a snapdragon 

 (Antirrhinum). 



2. D. sulphurea, n. sp. 



A shrubby creeper 6 to 10 feet long. Stem pubes- 

 cent branched with long internodes. Leaves opposite 

 but very unequal, one 3 inches long by f-1 inch wide, 

 the opposite one ^-f inch long ^--^ inch wide ovate or 

 lanceolate acute base unequal cuneate margins crenulate 

 dentate, deep green above purple beneath, nerves 6-7 

 pairs elevated on both surfaces, sprinkled all over on 

 both surfaces with short hairs, more hairy on the back. 

 Peduncles axillary filiform 4-6 inches long pubescent, 

 branches at the top two or 3 each bearing as many 

 flowers. Bracts 2 to each pair of flowers ovate glabrous 

 ^ inch long. Sepals elliptic ovate obtuse glabrous. 

 Corolla infundibuliform j inch long glabrous, upper lip 

 short recurved lower one longer. Stamens exsert short- 

 ly, filaments thick pubescent. Style stout. Stigma 

 excavate at the top. Capsule 1^-3 inches long rather 

 thick cylindric acuminate, glabrous. 



Perak, Larut Hills, G-unong Hijau (Scortechini 6a) also 

 on Chabang and G-. Bubu, Gunong Batu Putih (King's 

 Coll. 8059) Wray 219, Bujong Malacca (Ridley 9774). 



Var. breviflora, bracts and sepals narrower acute pube- 

 scent. 



Corolla smaller ^ inch long. Capsule pubescent f inch 

 long. 

 Selangor, Efukit Kutu (Ridley 7582). Endemic. 



3. D. citrina, Ridl.. Journ. Linn. Soc, XXXII, 508. 



A soft weak herb about a foot tall pubescent. Leaves 

 soft ovate or ovate lanceolate crenulate velvety, opposite 

 but unequal largest 2-3 inches long 1^ inch wide, peti- 

 oles -J-3 inches long. Panicles axillary 3 inches long base 



Jour. Straits Branch 



