XCI. GESNERIACES. 277 
Corolla widely-ringent, with a large lower lobe ; cap- 
RimceeMOrnCdts ts 6s qs) a ws ee ls. «ds PREDRRA, 
Corolla tubular-funnelshaped, subequally 5-lobed. 
Fruit beaked, shortly spiny at base Rg 
Fruit angularly wing-lobed, the lobes rigid, spiny, 
and armed with recurve-hooked spines. . . . 8. Uncarta. 
Fruit subcircular, broadly 2-winged round the 
margin; seeds solitary. . ... . . =. . 4 PTERODISOUS. 
2. ROGERTA. 
Tribe 2. SesAmMEm. Fruit capsular, membranous, dehiscent. Seeds nu- 
merous, oily, often winged.—Erect, leafy annuals. 
Capsule oblong, 2—4-lobed, acuminate . . . . . 5, SESAMOPTERIS. 
Capsule oblong 4-lobed, shortly 4-horned at apex . 6. SPORLEDERA. 
Tribe 3, DipyMocaRPEm. Ovary 1-celled, with projecting parietal pla- 
centas. Capsule 2-celled, dehiscent, membranous. Seeds numerous, mi- 
nute, mostly nude, pendulous.—Stemless perennials. 
Capsule pod-like, long and slender, spirally twisted . 7. SrREPTOCARPUS. 
Trise 1. Pepattnem. (Gen. 1-4.) 
1. PRETREA, Gay. 
Calyx 5-parted, the lobes linear, subfaleate. Corolla cam- 
panulate-ringent, very gibbous at base, the limb broad, 5-lobed, 
the lowest lobe ovate, much the longest, 7-striate. Stamens 
4, didynamous ; anthers oblong, incumbent. Ovary globose, 
2-horned, pubescent ; stigma forked. Fruit hard, 2-horned, 
4-lobed ; nuclei 1-celled, 1-2-seeded. Embryo minute.—De- 
caisne in Ann. Se. Nat. ser. 5, iti. 333. 
P. eriocarpa, Dene., found by the Rey. P. Lemuc near Litakun, is thus de- 
scribed :—“ Branches pubescent-hairy ; leaves obtusely lobulate or coarsely 
toothed, petioled; peduncles twice as long as leaves; 2-glanded at base ; 
bracts setaceous ; calyx-lobes lanceolate ; corolla broadly ringent, downy ; 
fruits cupulate, nerved, horned, pubescent-hairy.” (Dene.)—Unknown to 
me, 
2. ROGERIA, Gay. 
Calyx 5-fid, persistent. Corolla tubular, somewhat funnel- 
shaped, gibbous on the upper side at base, with a short, 
5-lobed, sub-2-labiate limb. Stamens 4, included, didynamous, 
inserted in the base of corolla-tube; a minute rudiment of a 
5th; anthers oval, 2-celled. Style filiform; stigma 2-3- 
lamellate. Fruit hard, opening at the apex, beaked, having 
near the base 2-5 unequal spines, 2-3-valved, with 4-6 un- 
equal cells, the larger several-seeded, the smaller abortive or 
l-seeded. Seeds pendulous, 3-angled, with a muricated testa. 
—DC, Prod. ix. p. 256 ; Thes. Oap. t. 118. 
R. longiflora, Gay, is a strong-growing, procumbent, glabrous and 
glaucous annual, growing to the north of the Orange River. Leaves on 
long petioles, opposite, broadly-ovate, 2-24 inches long. Tube of corolla 
nearly 3 inches long, the lobes obtuse. 
