508 xcv. gesnerace.e (baker and clarke), [Streptocarpus* 



closely-allied species since described. Not having the *■ type " of Vatke, I have 

 described above as " S. caidescens, Vatke " — Hoist 3387 — an excellent specimen, 

 determined by Engler. Vatke, however, says " calyx hairy, lobes linear, rather 

 acute," which does not agree with the calyx of Hoist, 3387, and would point rather- 

 to S. rivularis, Engl., as the original caidescens . 



9. S. Holstii, Engl, in Engl. Jahrb. xviii. 77, t. i-b,jig. 0. More- 

 slender and less hairy than S. caidescens, Vatke. Leaves sparsely 

 hairy, in Hoist 2233 less than 1 in. long ; but, from Engler's description 

 and plate, sometimes 2 in. long. Calyx-lobes elliptic-oblong, ending 

 in an ovoid gland, very sparsely hairy. Corolla, stamens, pistil, capsule,, 

 as of S. caidescens, Vatke ; to which S. Holstii must be very near. — 

 Engl, in Engl. Pfi. Ost-Afr. C. 363. 



IWCozamb. Dist. German East Africa : Usambara ; Derema, Hoist, 2233 ! 



10. S. ovata, C. B. Clarke. Internodes of stem long, and some- 

 what swollen. Leaves up to 2-J- in. long, ovate-elliptic, nerves prominent 

 on the lower surface. Peduncles 3-6 in. long ; cyme straggling, thin ; 

 ultimate branches slender, sparingly glandular-hairy. Calyx-segments 

 -| in. long, oblong-linear, gland-tipped, glabrate or very sparsely hairy. 

 Corolla, stamens, pistil, seeds, as of S. caidescens and S. Holstii. — S. 

 caidescens, var. ovata, C. B. Clarke in DC. Monogr. Phan. v. 154. 



Mozamb. Dist. German East Africa : Usambara ; Magila, Kirk ! 



11. S. rivularis, Engl, in Engl. Jahrb. xviii. 78, tt. 4,-b,fig. D„ 

 Leaves 2-2^ in. long, oblong, 6-8-nervecl, covered everywhere with 

 short grey hairs. Calyx-lobes T ^ in. long, lanceolate, gland-tipped, white 

 hairy. Corolla 'i in. long ; tube ^ in. long ; otherwise as S. caidescens^ 

 Yatke.— Engl, in Engl. Pfl. Ost-Afr. C. 363. 



Mozamb. Dist. German East Africa : Usamhava; Mlalo, Hoist, 342. 



The description of this species would suggest that this was the true S. caidescens, 

 Vatke. The present 4 species, n. 8-11 inclusive, all agree in essentials and come 

 from Usambnra ; it is possible with ample material they may hereafter be reduced 

 to one, but the examples to hand at present do not match. 



12. S. pallidiflora, C. B. Clarke. Stem erect, 4-8 in. long; 

 some of the internodes much swollen, both in the cultivated plant and 

 in Volkens 1006. Leaves (blade) 1J by 1 in., elliptic or ovate, nearly 

 entire, hairy on both surfaces, rounded or oblique at the base ; nerves 

 9 pairs ; petioles J- f in. long. Peduncles axillary, 3 in. long, carrying 

 an elongate loose apparently simple panicle ; bracts at the divisions 

 ^ in. long, linear (mostly 0) ; pedicels f in., nearly glabrous. Calyx -J- in. 

 long ; lobes oblong-linear, gland-tipped, with few many-celled hairs. 

 Corolla f-f in. long, white ; tube \ in. long, scarcely dilated ; limb of 

 2 unequal lips. Filaments glabrous, slightly dilated. Ovary with few 

 scattered many-celled hairs ; style glabrous. Capsule 1J in. long, very 

 early glabrate. — S. caulescens, Hook. f. Bot. Mag. t. 6814 ; Nichols. 

 Diet. Gard. iii. 516 ; S. caidescens, var. pallescens, Engl, in Engl. Jahrb. 

 xix. 154. 



