Page:Journal of botany, British and foreign, Volume 34 (1896).djvu/149

 NEW AFRICAN PLANTS. 129 long, the narrow bracteoles immediately beneath the calvx 2 lines. The calyx is; 4 lines long, the subspreading segments 2 lines. The corolla is If in. long, and about 1 in. in vertical diameter at the open mouth. The short tube is J in. long, the rounded-oblong lobes 4-5 lines, the anterior one being: smaller and shorter than the others, of which the lateral are slightly the broader. The two longer filaments are 10 lines long, the anterior slightly shorter. The horizontally directed anthers are 3 lines long, they end in a short point, and bear on the upper surface a longitudinal furrow with a line of short hairs. The style is IJ- in. long. The smooth dull brown capsule is 4^-5 lines long ; only one of the two valves was present, so that it is impossible to say whether the fruit is symmetrical or not. The seeds had all fallen. An interesting addition to the genus, which hitherto included only the South African G. scahra Benth. and the Socotran G.fruti- cosa Balf. fil. In habit it approaches the latter, but is distinguished from both its allies by its much larger, more open flowers. The complete disappearance of the sterile half of the anther in the posterior stamens is also of interest. Thunbergia longisepala, sp. nov. Volubilis, glabra, caule lig- noso, foliis parvis oppositis petiolatis cordatis ; floribus paucis axil- laribus, pedunculis validis folia plus duplo superantibus ; bracteis ovali-oblongis 5-nerviis ; calycis segmentis longis linearibus apice emarginatis, siccis involntis, dorso hispidulis ; corollae tubo sesqui- pollicari superne infundibuliformi, lobis aequalibus obovato-oblongis; antheris 4 subsessilibus, subsequalibus, oblongis, appendice brevi triangulari instriictis, et basi spinulosis, polline sphserico cum vittis transversis ornato ; ovario cum disco annulari cincto, stylo filiforme, stigmate bilabiato. Hab. Taita Plains, Scott Elliot, No. 6166. The terete light-coloured stem is less than 1^ lines in thickness. The thin leaves on the young shoots are about f in. long, and as broad ; the filiform petiole is slightly shorter ; the rounded apex is often apiculate. The stout peduncle is 2f in. long ; the large bracts are f in. by scarcely f in. The calyx has a very short broad cup ; the segments, which are narrow from a broader base, are -I in. long. The corolla-tube is nearly 1^ in. long and 1 line in diameter, expanding to about twice the diameter 2 lines below the lobes, which are 3-4 lines long. The filaments are |- line long ; the two smaller anthers 3 lines, the larger 3^ lines long ; a line of short hairs indicates the line of longitudinal dehiscence, and the rounded base bears a cluster of short spines. The filiform style is 1^ lines long. A very distinct species, recalling some forms of T. affinis S. Moore, from which, however, it is at once distinguished by its very narrow corolla-tube, long calyx-teeth, sessile stamens, and cordate leaves. Duvernoia speciosa, sp. nov. Fruticosa, ramis elongatis teretibns; foliis petiolatis ovatis interdum ovato-lanceolatis, glabris; floribus speciosis in axillis bractearum oppositarum cymosis ; calyce Journal of Botany. — Vol. 34. [March, 1896.] k