504 XCV. GESNERACEZ (BAKER AND CLARKE). [Streptocarpus. 
6. STREPTOCARPUS, Lindl.; Benth. et Hook. f. Gen. Pl. ii. 1023. 
Calyx inferior, deeply 5-fid, ;4,-} in. long. Corolla-tube cylindric 
or funnel-shaped; limb of 5, often very unequal, rounded lobes. 
Stamens 2, on the corolla-tube, with rudiments of 2 or 3 posticous 
stamens ; anther-cells early confluent ; pollen globose, 15 in diam., except 
in S. lagosensis. Ovary superior, cylindric ; placentas much intruded, 
bearing numerous ovules only on their margins ; style linear-cylindric, 
persistent ; stigma subcapitate. Capsule linear, 1—24 in. long, splitting 
into two spirally twisted valves, which separate from the placentas. 
Seeds very many, small (about 500 » long), ellipsoid to oblong, umbonate, 
brown.—Herbs 6-30 in. high, or stemless. Peduncles carrying many 
flowers in lax cymes, or (in S. Saxorum) 1-flowered ; bracts at the cyme- 
divisions very small, or more often 0, Species all more or less hairy 
with many-celled, sometimes gland-tipped, hairs. 
Species 50, confined to Africa south of the Tropic of Cancer and tle Mas- 
carene Islands. Several species are closely allied in small groups; and it is possible 
that several of these groups may be agglomerated into 1 species each, when more 
material comes to hand. So far as the present material goes, it rather suggests that 
Streptocarpus in Africa, like Didymocarpus in S.E. Asia and Cyrtandra in 
Polynesia, is rich in species each having a very restricted habitat. 
§ 1. Unifoliate—Stemless. Leaf (permanent cotyledon) 1, large, sessile, flat on 
the ground. Peduncles 1-4, repeatedly divided into compound cymes. Ovary and 
style densely hairy. Calyx-lobes linear (or scarcely narrow-oblong), without a gland 
at the tip, hairy. Hairs rarely gland-tipped. 
Corolla 2 in. long : : 
Corolla #-1 in. long. 
Calyx-lobes } in. long. Corolla blue : : . 1. 8. Mahoni 
Calyx-lobes 4 in. long. 
. 
4. S. benguelensis. 
Corolla pale blue : = : 5 5 . 2. 8S. tubiflos. 
Corolla violet : f i : a i . 5. S. katangensis, 
Corolla scarcely % in. long . : “ : . 38. S. breviftos. 
§ 2. Rosulate.—Stem hardly any, Leaves about 2 pairs, within an inch of the 
base, suberect. Peduncles 1-4, divided into compound cymes. Ultimate pedicels 
with some gland-tipped hairs. Calyx-lobes linear or linear-oblong, 3 in. long, hairy, 
not gland-tipped. Anther-cells hardly confluent. Ovary hairy. 
Corolla % in. long. Leaves thin . : : . 6. S. montana. 
Corolla #-1 in, long. Leaves shaggy on nerves . . 7. 8. hirtinervis. 
§ 3. Caulescentes.—Stem 4—30 in. long, with internodes up to 1-6 in. long, often 
branched. Leaves in opposite pairs, lower long petioled, uppermost often approxi 
mate and subsessile. Peduncles solitary, axillary, 1-5 in. long, carrying paniculate 
cymes ; sometimes 4-6 apparently umbeilate, ¢.e., one from each axil of the 2-3 pairs 
of the crowded uppermost leaves. 
* Ovary glabrous, or sparsely and minutely hairy; the 
young capsule glabrous or very early glabresceut. 
Ovary glabrous. Corolla blue or violet ; tube sub- 
cylindric. 
Calyx-lobes ovate or elliptic, not linear nor 
acute. 
Leaves closely hairy ; calyx-lobes not gland- 
tipped . 5 j A . 8. 8S. caulescens. 
