Classification of Plants ^71 



The Rhenoster bosch is the despair of farmers ; it is chiefly Western, 

 but has spread as far as Grahamstown, crowding out other plants as it 

 advances. Introduced from the Congo. 



Helichrysum. — Heads many- or few-flowered, either all 

 tubular or with ray flowers. Pappus of slender bristles. 

 Involucre showy, rosy, yellow, or white. These and the next 

 genus are the beautiful Everlastings, the Cape Flower. 



Herbs and shrubs, mostly with woolly leaves and stems. 



Helipterum differs from Helichrysum in having feather- 

 like pappus. 



AAAA. Anthers without tails. Pappus bristles abundant. 

 Involucre in one row — 



Senecio. — Heads with or without rays, rays pistillate, 

 disc flowers perfect, purple or yellow. The genus may be 

 known by the involucre of one row of scales with a few small 

 bracts at the base. Herbs, shrubs, or small trees. 



Othonna. — Rays yellow or purple, pistillate, disc flowers 

 staminate. Involucre as in Senecio, but without bracts. 



Shrubs or herbs with smooth shiny leaves. The herbs often have 

 tuberous roots. 



AAAAA. Anthers ivith short tails. Pappus no?ie — 

 Dimorphotheca. — Heads with rays. Involucre in one 

 row. The genus may be readily recognized by the two kinds 

 of fruit. Those of the ray flowers are slender, three-cornered, 

 tubercled ; of the disc flowers, flattened, heart-shaped, with thick, 

 wide wings. 



Herbs or half shrubs, often sticky, with yellow or purple flowers, or 

 white with purple underneath. 



Osteospermum. — Heads yellow, many flowers with 

 disc flowers staminate. Only the ray flowers bear fruits, which 

 contain white, bony seeds. Involucre in few rows, its scales free. 



Shrubs, rarely herbs, with alternate leaves, which may be cobwebby, 

 or rough with sticky hairs, or smooth. 



Tripteris. — Heads with ray flowers, which bear the fruit. 

 Disc flowers perfect but sterile. Flowers yellow, white, or 

 purplish. Fruits three- winged. Herbs or shrubs, mostly 

 sticky, strongly scented. 



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