55- PROTEACEAE IJl 



Male and female flowers in heads. Bracts broad. — Species 75. South 

 Africa. Some species yield timber or medicaments ; the silvery- 

 haired leaves of the silver-tree {L. av^enteum R. Br.) also form an 

 article of commerce Leucadendron Herrn. 



5. Flowers regular or almost so, disposed in heads which are sometimes 



reduced to a single flower. Perianth-segments united below, free and 



recurved above . 6 



Flowers distinctly irregular. Perianth-segments more or less united, 

 except the hindmost, which is separated from the others . . .11 



6. Leaves, at least the inferior, more or less divided 7 



Leaves all undivided 8 



7. Heads arranged in sometimes verj^ short spikes, 4-flowered. Ovary glabrous 



or almost so. Fruit sessile. — Species 15. South Africa. [Nivenia R. 



Br.) Paranomus Salisb. & Knight 



Heads solitary or arranged in corymbs or heads, usually many-flowered. 

 Ovary hairy, usually woolly or hispid. Fruit short-stalked. — ■ Species 

 70. South Africa Serruria Salisb. 



S. Heads solitary, 4- or more-flowered. Fruit sessile. — Species 20. South 



Africa. (Including Orothamnus Eckl.) Mimetes Salisb. 



Heads arranged in spikes, racemes, or umbels, i — 6-flowered. Fruit with a 

 short stalk 9 



g. Flowers somewhat irregular. Stigma lateral, or very oblique, or seated in 



the centre of a disc-hke expansion of the style-apex. Heads in lax 



spikes or racemes. — Species 25. South Africa . Spatalla Salisb. 



Flowers regular. Stigma terminal or nearly so, conical or club-shaped. 10 



10. Style more or less lateral, not constricted at the base. Perianth-tube 



4-angled. Inflorescence cylindrical. — Species 5. South Africa 



Spatallopsis Phillips 



Style terminal, constricted at the base. Perianth-tube short, not 4-angled. 



Inflorescence globose. — Species 12. South Africa. Sorocephalus R. Br. 



11. (5.) Anterior perianth-segments separating above. Anthers oblong or 



ovate. Style deciduous. Fruit glabrous. Flowers in sometimes oblong 

 heads, usually yellow. — Species 40. South and East Africa. Some 

 species yield timber and bark for tanning. (Plate 33.) 



Leucospermum R. Br. 



Anterior perianth-segments united almost to the top into a hp. Anthers 



linear. Style persistent Fruit covered with dense hairs . . . .12 



-12. Flowers in spikes or racemes. Anthers obtuse. — Species 15. Tropical 



and South-east Africa. Some species yield timber. Faurea Harv. 



Flowers in heads. Anthers usually with a prolonged connective — 

 Species 130. South and Central Africa. Some species yield timber, 

 bark for tanning, or medicaments. {Leucadendron 1..) . . Protea L. 



