STAPELIK^ OF THUNBER&'S HERBARIUM. 17 1 



Hueeniopsis, N. E. 2ir., gen. nov. 



Calyx 5-partitus, basi intus 5-squamatus, segmentis lanceolatis, acumi- 

 natis. Corolla campanulata, 5-loba. Corona simplex (exterior 

 deest), 5-loba, lobis crassis erectis simplicibus, antheris basi adnatis. 

 Pollinia subhorizontalia, tumida, oblonga, caudiculis brevibus glandulae 

 ad appendices laterales affixa. Caules perhumiles, aphylli, erasso- 

 carnosi, quadrangulares, angulis dentatis. Flores mediocres, cymosi, 

 cymis paueifloris bracteatis ad medium ramulorum inter angulos ses- 

 silibus. 



Species I, Africae australis incola. 



H. decipiens, JK E. Br. (PL XII. figs. 9-13.) 



Ramis procumbentibus, 1-2^ poll, longis, £ poll, crassis, plus minusve 

 clavatis, glabris ; pedicellis 1-3 lin. longis, crassis, glabris; lobis ca- 

 lycinis lanceolatis, acuminatis, glabris; corolla diam. 1 poll., extus 

 glabra cineraceo-viridi, scliistaceo vittata maculataque, intus saturate 

 rufo-purpurea luteo variegata, lobis deltoideo-acuminatis, recurvatis, 

 |)ilis clavatis basi ciliatis. Corona purpurea. 



Hah. ? 2216, Mac O wan ! 



This is a very curious plant, which I have cultivated several 

 years without any knowledge of its native country until last year 

 when Prof. MacOwan sent to Kew a specimen in spirits from the 

 Cape of Good Hope, but without exact locality. In habit, form, 

 and size of stems it so much resembles Duvalia polita, that before 

 it flowered I mistook it for a constantly 4-angled form of that 

 plant : the flowers, on the other hand, are very like those of 

 a Huernia, to which genus Huerniopsis is most nearly related ; 

 but the utter absence of an outer corona at once distinguishes it. 

 In this latter respect it resembles Piaranthus, E. Br. (not of other 

 authors) ; but the different habit, different corolla, and absence 

 of dorsal crests to the lobes of the corona render it sufficiently di- 

 stinct from that genus. 



The flowers only remain open about forty hours and emit a very 

 foetid sickly odour, which is very similar to that of Stapelia 

 olivacca, N. E. Br. 





DESCRIPTION OF THE TLATES. 



Plate XI. 



Fig. h Trlchocaulon piliferum, outline of flower in TbunbcrgV herbarium ; 



magnified 2 diameters. 



2. Trkhocaulon flavum, a bud ; magn. 2 J diam. 



3. Ditto, open flower; magn. 2 J diam. 



LINK. JOUBK. — BOTANY, VOL. XV 1 L O 



