SUCCULENT PLANTS. 



471 



V. radiata (" Bot. Mag.," t. 619) are in cultivation. Both have narrower 

 radiating segments, those of the first-mentioned with hairs. 



Decabelone. — A very charming genus of dwarf plants with many- 

 angled stems bearing seta3 and large tubular campanulate flowers. 

 D. Barklyi ("Bot. Mag.," t. 6203) is native of Little Namaqualand. It 

 is an elegant plant 3 to 6 inches high, the stems with ten to twelve 

 angles furnished with processes bearing one erect and two lateral 

 deflexed, slender white spines. The corolla is slightly curved, the ground 

 colour being livid yellow upon which are many red-brown streaks and 

 spots. D. elegans will be mentioned under Tropical Africa. Both 

 species are difficult to keep, and grafting on a strong-growing ally 

 should be tried. 



Fig. 85. — Stapelia gigantea. 



Huernia. — Much more attractive than Duvalia. The flowers are 

 campanulate, the lobes of the corolla short and with a tooth between 

 each. H. oculata ("Bot. Mag.," t. 6658), from Damaraland, is remark- 

 able and also extremely pretty on account of the purple-brown flowers 

 with white centres. H. primulina is also a nice plant with flowers 

 of a colour indicated by the name. H. Hystrix is another species, in 

 cultivation from South Africa. The genus is also found in Zanzibar 

 and Somaliland. 



Stapelia. — Perhaps the most popular and most frequently cultivated 

 of succulent Asclepiads, and known as Carrion-flowers on account of the 

 smell, which attracts flies for the purpose of cross-pollination, and 

 causes them to lay their eggs in the centre of the flower. The genus 



