508 XCV. GESNERACE (BAKER AND CLARKE). [Streptocarpus. 
closely-allied species since described. Not having the “type” of Vatke, I have 
described above as “8S. caulescens, Vatke ’’—Holst 3387—an excellent specimen, 
determined by Engler. Vatke. however, says “ calyx hairy, lobes linear, rather 
acute,” which does not agree with the calyx of Holst, 3387, and would point rather 
to S. rivularis, Engl., as the criginal caulescens. 
9. S. Holstii, Lngl. in Engl. Jahrb. xviii. 77, t. 4-5, fig. C. More 
slender and less hairy than S. cawlescens, Vatke. Leaves sparsely 
hairy, in Holst 2233 Jess 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. caulescens, Vatke ; to which S. Holstii must be very near.— 
Engl. in Engl. Pf. Ost-Afr. C. 363. 
Mozamb. Dist. German East Africa : Usambara; Derema, Holst, 2233 ! 
10. S. ovata, C. B. Clarke. Internodes of stem long, and some- 
what swollen. Leaves up to 24 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 
din. long, oblong-linear, gland-tipped, glabrate or very sparsely hairy. 
Corolla, stamens, pistil, seeds, as of S. caulescens and S. Holstit.—s- 
caulescens, 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. 4-5, fig. D- 
Leaves 2-2} in. long, oblong, 6—8-nerved, covered everywhere with 
short grey hairs. Calyx-lobes 51, in. long, lanceolate, gland-tipped, white 
hairy. Corolla 3 in. long; tube } in. long; otherwise as S. caulescens, 
Vatke.—Engl. in Engl. Pfl. Ost-Afr. C. 363. 
Mozamb. Dist. German East Africa: Usambara; Mlalo, Holst, 342. 
The description of this species would suggest that this was the true S. caulescens, 
Vatke. The present 4 species, n. 8-11 inclusive, all agree in essentials and come 
from Usambara ; 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, (. 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) 1} by 1 in., elliptic or ovate, nearly 
entire, hairy on both surfaces, rounded or oblique at the base; nerves 
9 pairs ; petioles }~} in. long. Peduncles axillary, 3 in. long, carrying 
an elongate loose apparently simple panicle; bracts at the divisions 
t in. long, linear (mostly 0); pedicels 3 in., nearly glabrous. Calyx $10. 
long; lobes oblong-linear, gland-tipped, with few many-celled hairs. 
Corolla 3-3 in. long, white; tube 4 in. long, scarcely dilated ; limb of 
2 unequal lips. Filaments glabrous, slightly dilated. Ovary with few 
scattered many-celled hairs; style glabrous. Capsule 14 in. long, very 
early glabrate.—S. caulescens, Hook. f. Bot. Mag. t. 6814; Nichols. 
Dict. Gard. iii.516; S. caulescens, var. pallescens, Engl. in Engl. Jahrb. 
xix, 154. 
