Ipomoed.J xc. convolvulace<e (baker and uendle). 197 



and younger peduncles with yellow tomenfcum. Leaves large, orbicular- 

 cordate, sharply acuminate, entire, dull green above and glabrous 

 except on the pubescent nerves, silvery silky below even in the adult, 

 4| in. long and nearly as broad ; petiole 4 in. long in a not fully grown 

 specimen. Peduncles axillary, rigid, robust, terete, about 1 h lin. thick 

 and <S in. long, terminating in corymbose many-flowered dichasia pass- 

 ing into contracted monochasia ; corymb 4 in. in diam. Bracts in the 

 monochasia distichous, linear-lanceolate, like the sepals silvery silky on 

 the outside, the lowest 7 lin. long, scarcely exceeding 1 lin. broad. Sepals 

 lanceolate tapering upwards, the three outer larger, 1\ lin. long to 2^ 

 lin. broad. Corolla funnel-shaped, 2 in. long, about ljin. broad, bear- 

 ing on the outside scattered spreading stiffish grey hairs ; miclpetaline 

 areas bounded by strong nerves, and with a conspicuous median nerve. 

 — -Rivea kituiensis, Hallier f. in Engl. Jahrb. xviii. 156, and Dammer 

 in Engl. Pfl. Osfc-Afr. C. 834 as to the Usambara specimen. 



IVIozamb. Dist, German East Africa : Usambara; Nyika, Hoist, 415. 



Near /. kituiensis, from which it is distinguished by the silvery silky covering 

 on the back of the leaves and bracts, and the broader sepals. (Hallier, I.e., says it 

 is also distinguished by the conspicuously shorter corolla, but the corolla in tlie 

 specimen from Kilimanjaro (Volkens, 460) which he refers to I. kituiensis is only 

 2 in. long.) 



144. I. chrysospermaj Hallier f. in Ann. Istit. Rot. Roma, vii. 

 234. An erect (?) shrub with robust terete rough ochre-coloured 

 branches, which, except the young shoots, are glabrous. Leaves large, 

 orbicular-cordate, obtuse, palmately 7-nerved at the base, green above, 

 with dense adpressecl grey pubescence beneath, 4^ in. long, 4| in. broad ; 

 petiole robust, densely grey-pubescent, 1% in. long, bearing a black 

 wedge-shaped nectary on each side at the apex. Peduncles solitary at 

 the leaf-scars, crowded almost in an umbel below the new branches, 

 robust, corymbose, reaching with the branches a length of 4| in., 

 repeatedly dichotomous, jointed at the scars of the fallen lower flowers ; 

 flowering branchlets bearing like the bracts and sepals an adpressed 

 ijrey tomentum, fruiting branchlets almost glabrous like the branches. 

 Upper flowers only remaining, solitary and subsessile at the joints of 

 the peduncles ; bracts and bracteoles deciduous, resembling and equal 

 to the sepals, grey tomentose on the outside. Sepals equal, linear- 

 lanceolate, about \ in. long, scarcely 1 lin. broad. Corolla (young) 

 with tube coloured (?) limb pale, grey pubescent on the outside, 

 except on the commissural segments ; midpetaline areas bounded by 

 strong nerves. Capsule subtended by the reflexed persistent sepals, 

 globose, glabrous, very closely and minutely striate, ochre-coloured, 1\ 

 lin. long, 4-valved, the 4 cells each 1-seeded; valves thick testaceous- 

 woody ; seeds trigonous, \ in. long, with a tawny silky covering much 

 longer on the two lateral angles. 



Wile Land. Somaliland; near Bunas, in dry gravelly places, Miva, 1438 

 partly. 



Very near I. kituiensis, but distinguished by tiie much smaller bracts and 

 sepals. 



