Huernia.'] lxxxv. asclepiade^ (brown). 405 



54. HUEKNIA, R. Br. ; Benth. et Hook. f. Gen. PI. ii. 7«4. 



Calyx 5-partite. Corolla campanulate or broadly cup-shaped, or 

 with a campanulate tube and spreading lobes, 5-C-lobed, with the base 

 of the sinuses between the lobes produced into small triangular teeth 

 valvate in bud. Corona double; outer corona of 5 free or connate 

 spreading lobes, arising at the base of the staminal-column and sessile 

 on, or adnate to, the base of the corolla ; inner corona of 5 simple 

 lobes arising at the top of the filament part of the stamnial-column, 

 incumbent on the backs of the anthers and often produced beyond them 

 into erect horns. Staminal-column arising from the bottom of the 

 corolla; anthers inflexed -ascending or sub-horizontal, not appendaged. 

 Pollen-masses inflexed-asceuding or sub-horizontal, pellucid along the 

 upper part of the inner margin, solitary in each anther-cell, attached 

 in pairs to the pollen-carriers by short caudicles ; pollen-ciirriers with a 

 wing-like expansion on each side, varying from dark reddish-brown to 

 black. Follicles narrowly fusiform, smooth. Seeds crowned with a tuft 

 of hairs. — Succulent perennial leafless 'herbs, branching at the base. 

 Stems 4-G-angled, thick and fleshy, toothed along the angles. Flowers 

 pedicellate, of moderate size, in few- or many-flowered cymes at the base 

 of the young shoots. 



Species sever.il, mostly natives of South Africa, 1 in Arabia. 



Corolla campanulate without a recurved limb between 

 the tube and lobes. 

 Stems with very small teeth about ^ lin. long. 



Corolla smootli outside . . . . . 1, H. similis. 



Corolla very rough with small pointed papillae out- 

 side . . . . . . . . 2. H. aspera. 



Stems with stout conical-subulate teeth 2-5 lin. long. 

 Corolla rough with minute papillae outside and 

 inside, indistuict in the dried state in H. 

 JPenzigii. 

 Corolla white at tlie base within ; inner coronal- 

 lobes pubei"ulous . . . . . ^. H. oculata. 



Corolla entirely blackish-purple within; inner 



coronal-lobes glabrous . . . . 4-. H. Fenzi>/ii. 



Corolla smooth outside, covered with small bristle- 

 like processes inside . . . . . o. H. coucinna. 



Corolla with a recurved or convex limb between the tube 

 and lobes ; stem with stout conical teeth 3-3| lin. 

 long . . . . . . . . . €). H. somalica. 



1. H. similis, iY. E. Br. in Kew BvXletin^ ISO,"), iHlT). Stems 

 elongate, growing to 9 in. long, \ in. thick, cylindric, obtusely 5- (G \-) 

 angled, glabrous ; angles with small spreading teeth h lin. long. Cymes 

 sessile or subsessile near the base of the young shoots, :>-5 -flowered ; 

 pedicels J-| in. long, glabrous. Sepals 2 lin. long, lanceolate, acuminate, 

 very spreading, glabrous. Corolla broadly campanulate, about 7 lin. in 

 -diam. and about half as long, outside glabrous, smooth ; inside rough 

 with small papillae; lobes spreading, deltoid, acuminate. Outer coronal- 

 lobes minute, about \-\ lin. long and \ lin. broad, obtuse; inner 



