Clematis.] I. ranunculace^ (oliver). 5 



riowers solitary, terminating simple, more or less leafy stems, of 

 1-2 ft. or more. Leaflets 3-1, more or less obovate or linear- 

 oblong I. C. chrysocarpa. 



Flowers loosely cymose. Leaflets 7-1} coriaceous, usually more or 



less ovate, broadly lobed, toothed and incised 2. C. Kirkii. 



Flowers loosely cymose. Leaves various, pinnati- or bipinnatisect ; 



leaflets oblong-cuneate, acutely incised 3. C. Stanleyi. 



Stem climbing. Flowers in terminal or axillary panicles, exinvolucrate. 

 Sepals spreading or reflexed at the time of flowering. 



Leaflets variable, more or less ovate, obtuse or acute, irregularly and 



broadly toothed or lobed, glabrous or pubescent 4. C. Thunbergii. 



Leaflets ovate or ovate-lanceolate, acute or shortly acuminate, denti- 

 culate-serrate or nearly entire, glabrous, rarely hairy below . . 5. C simensis. 



Leaflets ovate, cordate or rounded at base, broadly toothed and lobed, 

 pubescent above, pilose or silky, often with prominent veins in 

 the older leaves, beneath. Axillary panicles equalling or shorter 



than the leaves 6. (7. grata. 



Stem climbing. Flowers axillary, solitary. Peduncles with a 2-leaved 

 involucre, or pair of bracts below the flower. Sepals scarcely 



spreading 7. C. longicauda. 



Stem climbing. 



Calyx campanulate (sepals erect) at flowering 8. C. grandiflora. 



1. C. chrysocarpa, Welw. mss. Erect, 1-2 ft. Branches grooved, 

 pilose or pilose-pubescent, sometimes glabrescent at base. Upper leaves 

 usually 3-foliolate ; lower often 1-foliolate, terminal or solitary leaflet from 

 linear-oblong or oblanceolate to obovate-cuneate, narrowed or more rarely 

 slightly rounded below, often 3-lobate, broadly toothed or subentire, dentate 

 only towards the apex ; teeth mucronulate, silky or sparsely pilose below, thinly 

 pilose, or glabrescent above, 1^^ in. long, 5-15 lines broad. Flowers soli- 

 tary, 1^-4^ in. diam., white ; sepals 4-6, broadly oblong or ovate-subacu- 

 minate, pilose or tomentose-pubescent externally or on both sides. Filaments 

 compressed, ' silky below, much longer than the anthers. Achenes silky- 

 pilose, with long plumose tails. 



Nile Land. White Nile, Petherick ! waste ground, Usni, common (a broader-leaved 

 form), Speke and Grant! 



Iiower Guinea. Huilla, Angola, Dr. ^(?/mY*cA./ 



Heads of fruit in Dr. Welwitsch's specimens, about 4 in. in diam., the tails of the achenes 

 being more or less recurved when dry. Clematis trifida. Hook. Ic. Plant. 79, a Mada- 

 gascar plant, is a near ally of this species. 



2. C. Kirkii, Oliv, Branches shortly pubescent, tomentose at first, at 

 length nearly glabrous. Leaves pinnatisect ; the lower oblong in circum- 

 scription, with about 7 leaflets ; upper with 3 or reduced to a single one ; 

 leaflets coriaceous, more or less ovate 3-lobate and deeply toothed, obtuse ; 

 teeth obtuse, mucronulate ; of the upper leaves, narrow, acute or obtuse, in- 

 cised-dentate, pilose-pubescent beneath, excepting on the principal reticulating 

 veins, at length glabrescent, glabrescent above, H-2-| in. long, |-1| in. 

 broad. Flowers on erect peduncles, about l|-2 in. diam. ; sepals elliptical 

 or ovate-elliptical, obtuse or broadly and obtusely apiculate, thick and coria- 

 ceous, tomentose-pubescent on both surfaces. Filaments pilose below, con- 

 siderably longer than the anthers. Tails of the achenes soon more or less re- 

 curved after flowering. 



