fyomcea.] xc. convolvulace^e (baker and kexdle). 195 



areas well-marked, pulverulent-pubescent. Stamens nearly half the 

 length of the corolla. — Schweinf. & Volk. Liste PI. Somalis, 11, and in 

 Ghika, Pays des Somalis, 211; Hallier f. in Ann. Istit. Bot. Roma, 

 vii. 236. 



Nile Land. Somaliland : Adda Galla, James Sf Thrupp ! Golis Range, Miss 

 Edith Cole! .Mrs. Lort Phillips! Wagga Mountain and Bihen. Mrs. Lor/ 

 Phillips ! by the Rivers Jerer, Faf, Salul, and Dajelto, Ghika. Adadle, Keller, 

 231 ; Acaaess, Pivx, 356; Ogaden, Riva, 938; Hale'ma. Eiva, 1578. 



140. I. argyrophylla, Vatke in Linncea, xliii. 510. An erect 

 much-branched shrub, about 1-i ft. high ; branches slender, clothed 

 with silvery tomentum. Leaves crowded, narrowing into a short 

 petiole, lh lin. long ; blade narrowly lanceolate, obtuse, entire, up to 

 1^ in. long, green and glabrous above, densely clothed beneath with 

 silvery silky tomentum, as also are the bracteoles and sepals. Peduncles 

 short, 1 -flowered, silkily tomentose. Bracteoles linear, J in. long. 

 Sepals subequal, 7 lin. long, lanceolate, acuminate. Corolla funnel- 

 shaped, purple, probably 14 in. long ; midpetaline areas of the limb 

 with the characteristic silvery hairs. Capsule ovoicl, obtuse, glabrou- ; 

 seeds dull brown, glabrescent. — Engl. Hochgebirgsfi. Trop. Afr. 346 ; 

 Hallier f. in Sitzungsb. Akad. Wien. Math. -Nat. cvii. 51. Bivea 

 argyrophylla, Hallier f. in Engl. Jahrb. xviii. 157. 



Wile Land. Somaliland : Serut Mountains, near Maid, 5000-6000 ft., 

 Hildehrandt, 1414 ! 



Near /. cicatricosa, Baker, but distinguished by the narrower leaves. 

 Var. glabrescens, Hallier f. in Sitzungsb. Akad. Wien. Math. -Nat. cvii. 51. 

 More robust than the species, the adult branches reaching 2 lin. in thickness and 

 glabrous, yellowish and shining, rough on drying. Leaves glabrescent below, 

 reaching, together with the petiole, 1^ in. in length. Calyx ^ in. long. Corolla 

 2 in. long ; limb If in. wide. — Rivea nana, Hallier f. in Engl. Jahrb. xviii. 157. 

 Nile Land. British East Africa : Atlii Plains and Machakos, Pospischil. 

 IVTozamb. Dist. German East Africa : Masailand, Fischer, 103. 

 Var. brevisepala, Rendle. Tough, woody; branches nearly 2 lin. thick, 

 glabrous below and inconspicuously pubescent above, studded with the persistent 

 remains of the short leaf-bearing branchlets. Leaves oblanceolate, obtuse, barely 

 7t in. long, plicate, densely pubescent on the under surface. Flowers solitary, 

 axillary, subsessile ; bracteoles small, narrow. Sepals lanceolate-acuminate, sub- 

 equal, ^ in. long. Corolla funnel-shaped with a broad tube. Capsule globose, 

 blackish, glabrous, about 5 lin. in diam. ; seeds dull brown, barely 1^ lin. long, sur- 

 face minutely areolated. 



Nile laand. British East Africa : Ulu ; Lanjora, 5500 ft. ; a small shrub, 

 growing on rock, Scott-Elliot, 6377a ! 



Resembles the species in habit, but is distinguished by its smaller leaves and 

 much shorter sepals. 



141. I. adenioid.es, Schinz in Verhandl. Bot. Ver. Brandenb. xxx. 

 270. An erect shrub or undershrub, 1-5 ft. high ; the young branches 

 and under-surface of the young leaves clothed with short white silky hairs. 

 Leaves suborbicular or obovate with cuneate base, entire, 1-2 in. long, 

 subobtuse, glabrescent above, silky beneath, especially when young ;. 



