360 Flora of the Malayan Peninsula. 



Calyx 5-partite ; segments narrow, faintly imbricate. Corolla 2-lipped ; 

 upper lip outmost, erect, concave, 2-fid; lower larger, spreading, 

 3-lobed ; tube cylindric. Stamens 2 ; upper pair alone perfect, sub- 

 included; anthers contiguous, the cells divaricate ; lower pair represented 

 by 2 obtuse, glandular, entire staminodes on corolla-throat. Ovary 

 2-celled ; ovules in each cell numerous ; style slender ; stigma 2- 

 lamellate. Fruit a narrow, exserted, septicidal capsule ; valves 

 separating from the placentiferous septum. Seeds many, small, rugose. 

 — DisTEiB. Species about 10, in tropics of Eastern Hemisphere. 



Leaves sharply, closely, deeply serrate : — 



Leaves sessile ; flowers white or pink ; stems green . . \. B. brachiata. 



Leaves petioled ; flowers purple ; stems reddish . . . . 2. B. reptans. 



Leaves remotely, shallowly serrate, or sub-entire; flowers violet- 

 purple : — 



Leaves narrow-oblong .. .. .. ..3. B. veroniccefoUa. 



^ , , , (Bb. veroniccefoUa, 



Leaves lanceolate . . . . . . . . , " . 



I VAE. verhencefoiia. 



1. BoNNAYA BRACHIATA, Link & Otto, Ic. PI. Sel. I. 25, t. 11. An 

 erect rather rigid herb, 4 to 10 in. high ; branches diffuse divaricate, the 

 lowest decumbent below. Leaves oblong, obtuse or acute, margins 

 thickened and sharply closely deeply serrate with teeth mucronate ; 

 lamina -5 to 1'5 in. long; pedicels rigid about -25 in long ; bracts small. 

 Calyx of 5 nearly free sepals "25 in. long. Corolla white or pink, -25 in. 

 long. Capsule slender, spreading or erect, "5 to "6 in. long. Benth. in 

 Wall. Cat. 3855, Scroph. Ind. 32, and DC. Prod. X. 420 ; Miq. Flor. 

 Ind. Bat. II. 695 ; Hook. f. Flor. Brit. Ind. IV. 284. B. serrata, Griff. 

 Notul. IV. 108. B. pusilla, Benth. Scroph. Ind. 33 ; Wall. Cat. 3861. 

 Cfratiola serrata, Eoxb. Flor. Ind. I. 139, and ed. Carey & Wall. I. 140. 

 Eheede, Hort. Malab. IX. t. 59. 



Singapore : Wallich ! Pahang : Biclley ! — Distrib. India, Indo- 

 China, China, Malaya, Philippines. 



Wallich's Singapore specimen and one of Eidley's from Pahang belong to the form 

 distinguished by Bentham as B. pusilla ; another Pahang gathering (Ridley 2163) 

 consists of genuine B. hrachiata, from which, however, B. lousilla, though separable 

 as a marked form, is hardly separable as a variety. 



2. BoNNAYA REPTANS, Sprcug. Syst. I. 41. A prostrate creeping 

 slender herb with reddish stem, branches and leaves beneath ; branches 

 diffuse spreading often 12 in. long. Leaves in distant pairs, obovate- 

 oblong, obtuse, margins thickened and sharply serrate with mucronate 

 teeth ; base narrow-cuneate passing into a petiole "25 in. long ; blade 

 -75 to 1'25 in. long, -5 in. wide. Floioers opposite in terminal racemes 

 sometimes 3 to 4 in. long ; pedicels rigid, -25 in. long ; bracts small. 



