500 XCV. GESNERACE& (BAKER AND CLARKE). 
except from Scrophulariacee which differ by having a completely 2-celled ovary 
(with the numerous seeds on axile placentas in each cell). But in many Gesneracee, 
if a horizontal section is made across the lower half of the ovary, the two placentas 
are nearly (or quite !) confluent by their inner flattened faces, and the section is then 
that of a Scrophulariacea, and some of the figures cited below as gesneraceous show 
this. To be sure that a plant is gesneraceous, a cross-section must be made 
through the upper half of the ovary, when the two placentas can be seen to be 
parietal. 
Capsule ovoid or oblong. 
Cyme open ; leaves several, petioled . - Fs - L. SAINTPAULIA. 
Cyme condensed into a small head. : : . 2, EPITHEMA. 
Cyme open ; leaf 1, basal, sessile. : é . 9& ACANTHONEMA. 
Capsule linear. 
Capsule-valves flat after dehiscence. 
Stigma emarginate, hardly 2-fid . F . A. DIDYMOCARPUS. 
Stigma of two oblong rough branches . : . 5. TRACHYSTIGMA. 
Capsule-valves twisting up after dehiscence. . 6, STREPTOCARPUS. 
Capsule oblong? Creeping, with distant alternate 
leaves 7. LINNZXOPSIS. 
1. SAINTPAULIA, Wendl. in Gartenfl. xlii. 321, t. 1391. 
Calyx small, deeply 5-lobed. Corolla wide-campanulate ; tube 
short ; lobes elliptic, a fine blue, the two posticous shorter (sometimes 
much shorter) than the others. Stamens (perfect) 2, on the corolla; 
filaments nearly or quite glabrous; anther-cells very large, yellow, even 
when young orbicular, dehiscing by one continuous short slit. Ovary 
hairy ; style glabrous upwards ; stigma oblique, hardly 2-fid ; placenta- 
tion as in Streptocarpus. Capsule oblong, loculicidally 2-valved ; valves 
after dehiscence flat, the placentas attached to the middle of the valve, 
covering the seeds by their inrolled margins. Seeds small, ellipsoid, 
smooth.—Herbs, hairy, often stemless. Leaves long-petioled, ovate. 
Peduncles radical (or axillary in the caulescent species), 1-5 in. long, 
carrying several (or 1) flowers in a loose cyme ; bracts very small. 
Species 4, endemic. 
This genus differs from séveral others in characters of small importance. It 
differs from Didymocarpus and Chirita only in the capsule being oblong (not linear). 
The corolla, stamens, and large anthers are exceedingly like those of Bea, which differ 
by having twisted capsule-valves. Engler (in Engl. Jahrb. xxviii. 482) doubts if 
the genus can be kept distinct from the Chinese Petrocosmia, Oliver ; and Fritsch 
(in Engl. § Prantl, Pflanzenfam, iv, 3 B, 185) states that Petrocosmia only differs by 
having the anther-cells (just before dehiscence) oblong and parallel, which 1s 
right. 
Stemless, 
Corolla 2 in. in diam. 
Leaves crenate, thin, with two kinds of hairs 
Leaves entire, thick, with uniform hairs 
Corolla} in.in diam. . : : : 
Stem 4—6 in. long, with distant pairs of leaves 
. S. tonantha. 
. S. kewensis. 
. S. pusilla. 
. S. getzeana. 
Dm Oo bo 
1. S. ionantha, Wendl. in Gartenfl. xlii. 321, t. 1391, and 328, 
Abbild. 66. Stemless, hairy. Leaves many; blade 14 by 14 10. 
