Flora of the Mahti/an Peninsuhi. 595 



the apex, attached in pairs to the carriers by short caiidiclos, erect or 

 horizontal in the cells, never pendulous. 



Corona double : outer corolline, of small processes in the sinuses 



of the corolla-lobes ; inner staminal, annular ; flowers small ; 



corolla rotate . . . . . . . . . . 30. Leptadenia. 



Corona double, both staminal: outer cup-shaped, inner usually 



erect, subulate ; flowers rather large ; corolla tubular .. ,31, Ceropegia. 



30. Leptadenia, E. Br. 

 Shrubs, twining or erect, and then with stiff much-branched rusli- 

 like stems. Leaves opposite, variable, sometimes absent. Flowers small, 

 in umbellate, lateral, sessile or pedunculate, many-flowered cymes. 

 Calyx 5-lobed to the middle or further ; scales absent. Corolla deeply 

 5-lobed, rotate or with a short campanulate tube and spreading lobes ; 

 valvate in bud. Corona double ; outer corolline, of 5 short transverse 

 or rounded fleshy processes alternating with the lobes of the corolla at 

 the sinuses ; inner staminal, of a raised undulate fleshy ring at the base 

 of the staminal-column. Staminal-column arising from the tube of the 

 corolla, to which the filaments are sometimes adnate ; anthers incum- 

 bent on the style-apex, with minute or no appendages ; pollen-masses 



1 to each anther-cell, suberect or erect, ovoid, with a pellucid apex, 

 attached in pairs by fleshy caudicles to the pollen-carriers. Ovary of 



2 distinct carpels ; style-apex conical, with a 5-angled base ; tip often bifid. 

 Fruit of usually 1 thick smooth follicle. Seeds small, ovate-oblong, 

 comose. — -Disteib. Five or six species, three being twiners and two 

 erect shrubs. Four species are found in Central Africa, one extending 

 through Egypt and Arabia into Western India, one in Madagascar, and 

 one in India and Malaya. 



Leptadenia reticulata, W. & A. in Wight Contrib. 47 (1834). A 

 hoary twining shrub ; stems with corky deeply cracked bark ; branchlets 

 terete, glabrous or hoary-puberulous. Leaves thinly coriaceous ; sub- 

 deltoid or ovate or ovate-oblong or ovate-lanceolate, acute at apex, 

 rounded or cuneate at base ; both surfaces pale, glabrous or more or less 

 finely pubescent ; 1-5 to 3 in. long, -75 to 1-75 in. broad ; midrib rather 

 broad, without basal glands, but sometimes with a minute tuft of hair 

 at the base ; main nerves 5 to 7 pairs, spreading, faint ; reticulations 

 netted, obscure ; petiole "25 to '75 in. long. Cymes many-flowered, 

 hoary-puberulous, shorter than the leaves, often in pairs on the 

 peduncles ; peduncles -25 to -75 in. long ; bracts minute, clustered at 

 the thickened bases of the umbels ; pedicels slender, up to "5 in. long ; 

 buds globose ; flowers greenish-yellow. Calyx rotate-campanulate, 

 divided to ^.bout the middle, pubescent without ; lobes ovate-oblong, 



14 



