Uncaria.'] LXXV. RUBIACEJE. (J. D. Hooker.) 31 



Branches slender. Leaves 2-3 by l-2 in., red-brown and quite opaque when 

 dry ; nerves about 5 pair, very slender ; petiole slender, base rounded, rarely sub- 

 cordate. Peduncles $-1 in., slender, pubescent ; bracts orbicular. Heads f in. diam. ; 

 calyx villous, lobes very distinct and almost orbicular ; corolla ^ in., very slender. 

 Capsules ^-f in., twice as long as the filiform pedicels, rusty-puberulous, A very 

 distinct species, easily recognised by the broad thin quite glabrous wrinkled (when 

 dry) leaves with faint nerves, the 2-fid stipules, small flowers, calyx, and very slender 

 capsules. It is one of the 6 species included under Wallich's U. Grambier (n. 6103), 

 and under letter B. is called ' U. Gambler et U. ovalifolia, Boxb. Hb. 1824.' I do not 

 find the peduncles to be ' axillary and terminal, compound,' as described by Eoxburgh. 



11. U. dasyoneura, Korth. Verh. Nat. Gesch. Sot. 169; branches 4- 

 angled glabrous, leaves elliptic obtusely acuminate narrowed into the rather 

 long petiole shining above, nerves 4-5 pair strong with scattered hairs beneath, 

 stipules entire, peduncles short all axillary bracteate about the middle, flowers 

 subsessile, calyx shortly 5-toothed, corolla puberulous. Miq. Fl. Ind. Sat. ii. 

 143. U. elliptica, Br. in Wall Cat. 6104, A. in part, B. 



PENANG, Porter, Phillips. MALACCA, Griffith (Kew Distrib. 2756, U. brevispina ?), 

 Maingay (Kew Distrib. 827/2, U. acida). SINGAPORE, Lobb (No. 331). 



Leaves very uniform, 3-3 5 by 2-2| in., coriaceous, dark brown, veins very faint 

 beneath ; petiole f in. Peduncles generally shorter than the petioles ; bracts ovate- 

 lanceolate, glabrous. Heads 1 in. diam. ; calyx shortly tomentose, limb a small very 

 shortly toothed cup; corollas slender. Capsules slender, 1 in., on filiform pedicels. 

 There are three plants under Wallich's 6104 A., of which this is the principal ; 

 No. 6104 B., from Herb. Finlay&on (probably from Siam), has rather more obovate 

 leaves. 



VAR. Thwaitesii ; leaves sometimes almost glabrous beneath, flowers and fruit more 

 tomentose and ferruginous. U. Gambier, Thwaites Enum. 138, not of Roxburgh. 

 Ceylon ; at Colombo, &c., in the central provinces, alt. 3000 ft. 



*** Calyx-tube very short, lobes oblong or linear or filiform, corolla glabrous 

 or pubescent. 



12. U. Gambier, Roxb. Fl. Ind. i. 517 ; leaves ovate or ovate-lanceolate 

 ohtusely subcaudate or acuminate glabrous on both surfaces, base rounded or 

 acute not glaucous beneath, nerves 5 pair, peduncles all axillary bracteate in 

 the middle flowers pedicelled, calyx-lobes oblong, corolla-tube puberulous lobes 

 white silky externally and with a white beard within. Korth. Verh. Nat. Gesch. 

 Sot. t. 34; Wall. Cat. 6103, A. E. 0. in part, and 6107 (U. macrophylld) in 

 part ; Hayne Arzn. Gesch. x. t. 3. ? Nauclea Gambier, Hunter in Trans. Linn. 

 Soc. ix. 218, t. 22 ; Fleming in Asiat. Researches, xi. 187. 



HAB. MALACCA, PENANG, and SINGAPORE (wild or cultivated). DISTRIB. Java, 

 Sumatra. 



It is impossible to pronounce, from the descriptions of Eumph and Hunter, what 

 they intended by their ' Grambier.' I have assumed that Koxburgh's is the right 

 plant, both from his accuracy, and because I find that Maingay's specimens marked 

 as ' the cultivated plant of commerce ' agree both with Koxburgh's description and 

 with the specimen in Wallich's Herbarium (6103 A.), which bears Koxburgh's ticket 

 of Gambier. Its characters are, in addition to those given above, leaves coriaceous, 

 4-5 by 2-2 in., always glabrous beneath except small tufts of hairs in the nerve- 

 axils, hardly shining above; stipules entire; peduncles rarely more than an inch 

 long; heads 1^ in. diam.; calyces tomentose; corollas \ in. long with the orbicular 

 white silky lobes contrasting strongly when dry with the dark tube, the lobes inside 

 bearded towards the base with white hairs (rarely absent); and glabrous fusiform 

 capsules in. long on short pedicels. The tuft of white hairs on the corolla-lobes is 

 not represented in Koxburgh s Icones, though described by him. 



