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 696 CONTRIBUTIONS TO THE BOTANICAL REGISTER.

genus, to be placed next to Oncidium, from which it differs by a convolutely concave undivided taper-pointed label, a corolla with the petals all distinct, a column with the two top-lobes converging convolutely (not extended), and by two furrowless or unindented pollen-masses (furrowed or indented in Oncidium).

Bot. Reg. 612 (1822).

Ceropegia. Asclepiadea. Cor. tubulosa basi ventri- cosa, limbi laciniis ligularibus conniventibus : sestivatione valvata. Columna fructificationis inclnsa. Corona staminea 10-nda; lacinias 5 antheris distinctis oppositae longiores cum 5 reliquis (indivisis bifidisve) alternantes. Masses pollinis erectse. Herbse glabrce, scepius volubiles, raclice taberosd. Umbellse interpetiolares, nunc pauciflorce. Brown MSS.

C. africana, pedunculis 2 — 3-floris, foliis ovato-lanceo- latis carnosis, limbo corollas barbato, coronas laciniis lon- gioribus aversis falcato-recurvis : brevioribus indivisis. Brown MSS.

Radix : tuber pro ratione herba 3 — 6-uncialis magnum. Caulis simplex, scepius volubilis. Eolia acuta, planiuscula, avenia, breve petiolata, divaricata, apicibus subrecurvis, semuncialia. Spica rara e pedunculis alternis brevibus 2 — 3-jloris, pedicellis brevibus minute bracteolatis. Flores erecti, inferior e prcecociore. Cal. h-partitus, laciniis lineari- subulatis nwdice patentibus, basi ventricosd tubi corolla fere ter brevioribus. Corolla : tubus e basi obovato-globosd obso- lete pe?itagond viridi cylindraceus, fauce infundibuliformi striata ; limbi lacinice linear es intils in arginib usque pilis coloratis patulis acutis barbatm, erectcB apicibus conniventi- bus lav iter que cohcerentibus : limbus inexpansus prismatico- pentagonus fauce pe7itagond angulis extantibus cum laciniis limbi alter nantibus. Columna fructificationis basi ventricosd tubi inclusa. Corona apici tubi staminei brevis inserta nwnoplnjlla decemloba : lobi quinque emu staminibus alter- nantes abbreviati indivisi obtusi basi saccati : quinque re- liqui quasi interior es antheris oppositi aliquoties longiores margine interiori truncato-canaficulafo ewteriori in aeiem

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