34 
KEY TO FLORA OF CAPE PENINSULA 
B. 
Erect shrubs ; leaves coriaceous, opposite ; 
flowers tetramerous. Penaeaceae. 
Decumbent herbs; leaves not coriaceous; flowers 
pentamerous (except sometimes 
tetramerous in Galenia aud Pol- 
poda). Ficoideae. 
Ovary 1-celled. 
Leaves whorled. Ficoideae. 
Leaves not whorled. 
Cells more than 1-ovuled; stamens very 
numerous. Bixaceae. 
Cells 1-ovuled ; fertile stamens not exceed- 
ing 12. 
Anthers opening by valves. Laurineae. 
Anthers opening by slits. 
Calyx long or tubular. 
Stamens in the points of the sepals ; 
style terminal. Proteaceae. 
Stamens not in the points of the se- 
pals ; style lateral. Thymelaeaceae. 
Calyx short not tubular. 
Calyx dry and coloured. 
Amarantaceae. 
Calyx herbaceous aud succulent. 
Ghenopodiaceae. 
2. Both whorls of the perianth absent. 
Leaves stipulate. 
Flowers amentaceous ; tree; ovary 1-celled. Salicaceae. 
Flowers not amentaceous ; 1 $ and several </ enclosed 
in a cup; herbs with milky juice; 
ovary 3-celled. EupJiorbiaceae. 
Leaves exstipulate. 
Flowers hermaphrodite ; not amentaceous. Piperaceae. 
Flowers unisexual ; amentaceous. Myricaceae. 
Monocotyledones (leaves parallel-veined ; whorls of the perianth 
composed of 3 members). 
Perianth presen (. 
Both whorls of perianth present. 
Both whorls of perianth petaloid. 
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