}fater{als for a Flora of the Malayan Peninsula. 25 



adpressed, finely attenuated, pale liairs on the upperside of the blades, 

 rarely almost quite glabrous. Stem slender, terete below, more or less 

 quadrangular upwards. Leaves of a pair similar in shape, but unequal in 

 size, ovate to ovate-lanceolate, long acuminate, symmetrical or slightly 

 asymmetrical and rounded at the base, acutely and coarsely toothed, 

 thinly membranous, dark- or pale-green, the larger 1-2 in. by '4-1 in., 

 distinctly 3-, rarely 4-5-nerved from the very base, very faintly pin- 

 nate-nerved higher up ; petioles very slender, reaching 1*5 in. in length, 

 purple. Cymes 1-6-flowered, almost pseudo-umbellate ; peduncle *5-l 

 in. long, like the slender pedicels purple or crimson, the latter •25-*3 in, 

 long. Calyx campanulate-oblong to ovoid-oblong, about '15 in. long ; 

 teeth distinct, triangular. Petals elliptic, apiculate, 'S-'SS in. long, 

 glabrous, rose-coloured. Anthers lanceolate-acuminate, acute or sub- 

 obtuse, •12-'13 in. long. Stigma capitate. Fruit trigonous, obconical, 

 •23-*27 in. long, smooth ; valves "23 in. broad. Benn. PI. Jav. Rar. 211, 

 t. 44 ; Naud. in Ann. Sc. Nat. ser. 3, XV, 324 ; Miq. Fl. Ind. Bat. I, 

 563. Triana in Trans. Linn. Soc. XXVIIT, 76 ; C. B. Clarke in Hook, 

 f. Fl. Biit. Ind. VIII, 536. Stapf in Trans. Linn. Soc. 2nd Ser. IV, 

 J 56 ; Cogn. in DC. Mouogr. VII, 502 ; Stapf in Ann. Bot. VI, 301. 



Perak; Scortechini 312! Kunstler 722! Wray 427! on Gunong 

 Batru, 4500 ft., Wray 273 ! 406. Malacca ; Mt. Ophir, Maingay 2582 ! 

 DiSTRiB. Sumatra, Java, Borneo. 



Var. hirsuta, Stapf and King. Leaves hairy on both sides ; hairs 

 copious at least above, longer, wavy or curled, less adpressed than in the 

 type ; blades -often very small (06 in. by 0*3 in.) ; flowers solitary. 



Perak ; Scortechini 790 ! Larufc, top of Gunong Bubu, 5000-5300 

 ft., Kunstler 7406 ! Wray 3841 ! 



6. SONERILA PLACCIDA, Stapf and King. An erect or ascending, 

 usually branched herb, '5-1 ft. high, with a very fine, furfuraceous, dark 

 rusty and often scanty indumentum in the lower part and on the under- 

 side of the leaves (at least on the nerves), otherwise glabrous. Stem 

 quadrangular. Leaves of a pair similar, equal or unequal in size, oblong 

 or oblong-elliptic, subacute or subacuminate at both ends, or the tips 

 obtuse, sometimes decurrent at the base, entire or nearly so, symmetrical 

 or more or less asymmetrical, thinly membranous, dark- or light-green 

 and often spotted with white circular or elliptic spots above, whitish 

 green beneath, 2-4 in. by •75-l'75 in., pinnate-nerved, distinct side-nerves 

 usually 3 on each side, the others like the tertiary nerves very faint or 

 quite obscure ; petiole up to "6 in. long, often very short, slender. 

 Cymes terminal and axillary, short, few- to 9-flowered, peduncled, 

 peduncle very slender, "75-1 in. long; pedicels very slender, •08-*15 in. 

 long. Calyx slender, obconical to oblong, •13-"15 in. long, rose-coloured, 

 teeth triangular, very short and broad. Petals oblong, acute, "15 in, 



433 



