Polyura.] LXXV. RUBIACEX. (J. D. Hooker.) 77 
bearded ; lobes 5, short, obtuse, valvate in bud. Stamens 5, in the middle of the 
tube, filaments subulate; anthers shortly 2-fid at both ends. Ovary 2-celled ; 
style filiform, puberulous, stigmas 2 obtuse; ovules numerous, on subglobose 
placentas inserted on the middle of the septum. Capsule small, subglobose, sep- 
ticidal, 2-celled, many-seeded. Seeds obtusely angled, testa crustaceous ; embryo 
minute in fleshy albumen. 
1. P. geminata, Hook, f. in Ic. Pl. t. 1049, Ophiorhiza ? geminata, 
Wall. Cat, 6237. 
Kuasa Mrs., alt. 2-4000 ft., Hamilton, Gomez, Ee, Mitsumi Hits, Griffith. 
Whole plant 4-10 in. high, simple or branched from the base, pubescent. Leaves 
2-4 in., elliptic-oblong or -lanceolate, obtuse or obtusely acuminate; petiole long or 
short, often winged; nerves many, very spreading, often red-brown when dry ; stipules 
filiform. 
25. OPHIORRHIZA, ZL. 
Erect creeping or decumbent small herbs, rarely undershrubs. Leaves usually 
elliptic-lanceolate ; stipules caducous. Flowers white pink or greenish, secund 
on the branches of axillary or terminal dichotomous cymes; bracts or bracteoles 
various or 0. Calyx-tube short; lobes 5, small, persistent. Corolla tubular or 
funnel-shaped ; lobes 5, short, valvate in bud, back often winged, often also with 
a fold in the sinus. Stamens 5, inserted on the tube; anthers linear. Disk very 
large, 2-lobed. Ovary 2-celled ; style filiform, stigmas broad or linear; ovules 
many, inserted on basal ascending placentas. Capsules coriaceous, compressed, 
obcordate, girt in the middle by the calyx-tube, the crown dehiscing by 2 broad 
gaping valves; placentas divaricating, many-seeded. Seeds minute, angled, testa 
crustaceous; embryo clavate, in fleshy albumen.—DrsrRrs. Species about 50, 
tropical Asiatic, with a few Australian and Polynesian. 
A very difficult genus; the characters taken from the position of the stamens on 
the corolla-tube, the hairiness within of the latter, the length and smoothness or 
hairiness of the style, and the form of the stigma, have not been made diagnostic, as 
being probably sexual to a very great degree. 
* Bracteoles 0, or if present very narrow and caducous, falling away before the 
capsules &re fully formed. Corolla usually under 3 in. long (except in O. Wal- 
lichii). The species of this group are very closely allied indeed and difficult of 
definition. 
1. O. Mungos, Linn. ; erect, glabrous, or stem petioles cymes and leaf 
nerves {beneath puberulous, stipules small, cyme-branches subumbellate very 
spreading, bracts 0, calyx-teeth very short, corolla glabrous rounded at the tip 
in bud 4 in., mouth not dilated, lobes very short obtuse keeled at the back. 
Gaerin. Fruct. i. t. 55; Roxb. Fl. Ind. i. 701; W. & A. Prodr. 404. 
East Mrs. and Assam, ascending to 2000 ft. BIRMA, TENASSERIM, ANDAMAN 
and Njcoman Istanps. Mts. of the WESTERN PENINSULA and CEYLON.—DISTRIB.. 
Sumatifa, Java. 
A guffrutescent herb. Leaves 2-5 by 1-2} in., very thin, elliptic or elliptic-lanceo- 
late, long-acuminate, narrowed into the petiole. Cymes 1-8 in. diam., flat-topped, 
_— s or pubescent. Corolla white. Capsules "i in. diam., pedicelled.—The fol- 
owing) varieties may be referable to O. Harrisiana. 
Var. nemorosa, Thw. Enum. 139 (sp.); leaves elliptic or obovate-lanceolate, 
rounded with 1-2 long points, cymes fewer-flowered tomentose or glabrate.— 
. angustifolia, The. Enum. 140 (sp.); leaves narrower, calyx-teeth longer, 
corolld}tube shorter.— Ceylon. 
