Materials for a Flora of the Malayan Peninsula. 23 



2. SoNERiLA CALAMiNTHiFOLiA, Stapf and King. An ascending or 

 almost prostrate branched lierb, from a few inches to 1 ft. high, with 

 Teiy minute, spreading liairs all round or along the 2 commissural lines of 

 the stem and branches, or glabrescent below and with scattered, adpressed, 

 short, straight or flexuous hairs on the upper side of the leaves. Stem 

 terete below, quadrangular in the upper part, purple, like the branches 

 slender and often flexuous. Leaves petioled, rarely the uppermost sub- 

 sessile and then sometimes apparently whorled, those of a pair similar 

 in shape and size, symmetrical, oblong to elliptic- oblong, subobtuse, 

 narrowed into the petiole, acutely toothed with the teeth usually mucro- 

 nate and the margin revolate, rather stoutly membranous or almost 

 fleshy, pale-green, purple along the midrib, "S-'S in. by •15-*23 in,, 

 1-nerved or with 1 very fine side-nerve on each side from near the base; 

 petioles •08-"12 in. or less. Cymes terminal, 2-5-flowered, ultimately lax 

 or flowers solitary ; peduncles filiform, '4i-8 in. long ; pedicels very 

 slender, about "08 in. long. Calyx slender, obconical-oblong, •15-*2 in. 

 long; teeth triangular, broad, acute. Petals elliptic, cuspidate, about 

 •33 in. long, pink. Anthers shortly acuminate, •r2-'17 in. long. Style 

 filiform, '2 in. long; stigma punctiform. Fruit oblong, subtrigonous, 

 smooth, •25--3 in. by -OS--! in. 



Perak; Gunong Batu Pateh, 4300 ft., Wray 1022 ! 



3. SoNERiLA htssopifolia, Stapf and King. An erect, simple or 

 branched herb, 6-9 in. high, with two lines of short, curled hairs on the 

 stem and branches, and with whitish, flexuous, longer hairs on the upper 

 side of the leaves. Stem subterete below, quadrangular above. Leaves 

 sessile or petioled, those of a pair similar in shape and size, lanceolate, 

 subacute, cuneate at the base or the uppermost sessile and rounded at 

 the base, symmetrical, minutely and somewhat remotely toothed with 

 very acute or mucronate teeth, membranous, green, pale below, 1-1 "75 

 in. by •J5-'3 in., indistinctly 3-nerved frpm near the base; petioles 

 very variable in length, up to '4 in. long, or 0. Cymes few-flowered, 

 at length lax; peduncles -S-l in. long, very slender, pedicels very 

 slender, •04-*08 in. long. Calyx, very slender, almost cylindric, 

 •24--28 in. by -04 in. ; teeth triangular, mucronulate. Petals elliptic- 

 oblong, acute, '27 in. long, pink. Anthers acuminate, •12-* 18 in. long. 

 Style filiform, about -18 in. long ; stigma subcapitate. JPrniY trigonous- 

 cylindric, slightly obconical at the base, 'o in. by almost *1 in. 



Perak ; Gunong Hijan ; Scortechini 1426 ! 



4. SoNERiLA ERECTA, Jack in Malay Misc. I, 7. A copiously 

 branched herb, 1-1'5 ft. high, more or less hairy with the exception of 

 the inflorescence, hairs flexuous, finely pointed, those of the stem and 

 branches short, along 2 lines, those of the leaves longer, whitish, all 

 over both surfaces. Stem subterete below, quadrangular above, 



431 



