201. ASCLEPIADACEAE 45l 



ate. stem twining. Flowers large, in axillary umbels or racemes. 



(See 34.) Oxystelma R. Br. 



Corolla deeply divided 72 



72. Stigmatic head produced much beyond the anthers into a long beak 2-lobed 



at the apex. Corona-lobes linear. Corolla-segments narrow. Sepals 

 awl-shaped, without glands. Flowers in lateral cymes or racemes. 

 Leaves linear. Twining herbs or undershrubs. — Species i. South 



Africa. {Oncinema Am.) Glossostephanus E. Mey. 



Stigmatic head not or slightly projecting beyond the anthers. Sepals 

 with glands at the base. Flowers in umbels. Stem erect, rarely pro- 

 cumbent 73 



73. Stigmatic head club-shaped. Corona-lobes somewhat fleshy, with a 



transverse ridge or a short scale on the inner face. Sepals lanceolate, 

 with solitary glands. Inflorescences many-flowered. Leaves linear. — 

 Species 5. South Africa and Southern East Africa. (Including Peri- 



glossum Decne.) Cordylogyne E. Mey. 



Stigmatic head truncate or depressed and usually umbonate. ... 74 



74. Inflorescences terminal. Sepals with many glands at the base. Corolla 



white, with long hairs on the edges of the segments. Connective fringed. 

 Corona-lobes purple, with two hnear appendages at the base, but without 

 keels. Leaves narrow. — Species i. South Africa. Used as an 



ornamental plant Fanninia Harv. 



Inflorescences lateral or terminal and lateral. Corona-lobes usually with 

 2 keels on the inner face. — Species 120. South and Central Africa 

 (Including Aspidoglossum E. Mey., Lagarinthus E. Mey., and Mackenia 

 Harv.) Schizoglossum E. Mey. 



75. (29.) Pollen-masses 2 in each anther-half (4 on each pollen-carrier), very 



small. Pollen-carriers very small, broad, pale, rather soft. Anthers 

 with a more or less fringed appendage at the top. Corona, at least the 

 inner, arising from the stamens. Flowers small, in axillary cymes or 



terminal panicles. [Tribe SECAMONEAE.] 76 



Pollen-masses solitary in each anther-half (2 on each pollen-carrier). 

 Pollen-carriers hard, horny, usually of a dark colour. [Tribe TYLO- 

 PHOREAE.] 78 



76. Pollen-carriers with well developed, narrow arms. Corolla yellow, urceolate, 



with short triangular lobes. Sepals oval. — Species i. Madagascar. 

 Yields rubber Secamonopsis Jum. 



Pollen-carriers with short and broad or indistinct arms. Corolla rotate, yy 

 yy. Stem erect, shrubby. Flowers in few-flowered cymes. Corolla adnate 

 to the ovary at the base ; segments very long, spatulate. Corona- 

 lobes 5, filiform. Pollen-carriers without distinct arms. — Species i. 

 Madagascar. Poisonous Menabea Baill. 



Stem twining or procumbent, shrubby or half-shrubby. — Species 45. 

 Tropical and South Africa. Some are used medicinally. (Including 

 Toxocarpus Wight et Am.) Secamone R. Br. 



