558 ^20. CüMPÜSITAE 



131. Inner fruits with a pappus of feathery bristles, outer without a 



pappus 132 



Inner and outer fruits without a pappus 133 



132. Heads in glomerules. Involucral bracts scarious. Corolla-Hmb of the 



female flowers shortly toothed. Pappus-bristles 2 — 6. — Species 6. 

 Tropical and South Africa. (Including Demidntm DC.) Amphidoxa DC. 

 Heads in corymbs. Involucral bracts scarious only at the edges, subequal. 

 Corolla-limb of the female flowers two-cleft. Pappus-bristles i — 2. — 

 Species 2. South and Central Africa Denekia Thunb. 



133. Heads arranged in cymes. — Species 3. Central and South Africa. 



(Including Litogyne Harv.) Epaltes Cass. 



Heads collected in compound heads. — Species 25. Tropical and South 

 Africa and Egypt. Some species are used medicinally Sphaeranthus L, 



134. (117.) Style-branches of the hermaphrodite flowers stigmatose within, 



hair}' outside from the tips downwards to below the point of division. 135 



Style-branches of the hermaphrodite flowers stigmatose at the edges, 



hairy only in their upper part 149 



135. Heads with all the flowers hermaphrodite 136 



Heads with the inner flowers hermaphrodite or male, the outer female. 138 



136. Pappus wanting ; fruits with an indistinctly cupular margin at the apex. 



Heads small, i — 4-flowered, arranged in corj^mbs. Shrubs. — 



Species 2. Madagascar Apodocephala Bak. 



Pappus present. Heads medium-sized 137 



137. Fruits hairy. Pappus of scales. Receptacle bristly. Heads sessile. 



Undershrubs. — Species i. Southern West Africa (Angola). (Under 



Geigeria Griesselich) Thysanurus O. Hoffm. 



Fruits glabrous. Pappus of bristles. Receptacle glabrous. Heads 

 stalked. Shrubs. — Species 5. Madagascar. . . . Centauropsis P)OJ. 



138. Corolla of the female (marginal) flowers strap-shaped. Receptacle 



pitted. Outer involucral bracts mucronate. Fruits hairj^ Pappus 

 of several rows of bristles. Shrubs. Heads solitary, yellow-flowered. — 

 Species i. South-west Africa (Namaland). Eremothamnus O. Hoffm. 

 Corolla of the female (marginal) flowers thread-shaped. [Tribe INULEAE, 

 subtribe plucheinae.] 139 



139. Pappus wanting 140 



Pappus present, at least in the hermaphrodite (central) flowers. . .141 



140. Heads arranged in cymes. (See 133.) Epaltes Cass. 



Heads collected in compound heads. (See 133.). . . Sphaeranthus L. 



141. Inner fruits with a pappus of i — 5 bristles, outer without a pappus. 142 

 Inner and outer fruits provided with a pappus 143 



142. Pappus of I — 2 bristles feathery at the tip. Corolla-limb of the female 



flowers 2-cleft. Heads in corymbs. (See 132.) Denekia Thunb. 

 Pappus of 3 — 5 simple bristles. Corolla-limb of the female flowers 

 4 — 5-cleft, Heads solitary. — Species i. East Africa. 



Delamerea S. Moore 



