122 
KEY TO FLORA OF CAPE PENINSULA 
Branches slender trailing prostrate. diffusa, Burch. 
Branches robust ascending. thymifolia, Thunb. 
Primary leaves lanceolate, subulate, linear or clavate. 
Lateral petals reaching or very nearly reaching to tip of keel-crest. 
Leaves usually muticous, primary often much reduced ; horns not 
longer than capsule ; branches finally subspinescent. 
macropetala, Harv. 
Leaves pungent or mucronate, primary usually well-developed; horns 
much longer than capsules; branches not subspinescent. 
Leaves dorsally keeled, pungent; fls. > 4 Is. long, conspicuous. 
Heisteria, DC. 
Leaves dorsally rounded, long-mucronate ; fls. < 3 Is. long, in- 
conspicuous. longicuspis, Turcz. 
Lateral petals shorter than, equalling or slightly longer than keel. 
Leaves rigid, pungent; fls. > 3 Is. long, brachypetala, Wolley-Dod. 
Leaves scarcely rigid, mucronate ; fls. < 3 Is. long. 
Branches slender trailing prostrate. diffusa, Burch. 
Branches ± robust, ascending. 
Inner sepals acuminate, as long as the petals or longer. 
Leaves + erect, the secondary usually not developed. 
filiformis, DC. 
Leaves spreading, the secondary usually well-developed. 
conferta, DC. 
Inner sepals acute or obtuse, shorter than petals. 
Secondary leaves usually not well-developed. 
Petals shorter than keel. filiformis, var. 
Petals as long as keel. stipulacea, DC. var. 
Secondary leaves well-developed. 
Leaf-tufts distant, leaves broader above the middle, 
obtuse. dumosa, DC. 
Leaf-tufts + crowded, leaves gradually tapering to the apex. 
Branches short, twiggy ; sepals conspicuous. 
demissa, Wolley-Dod. 
Branches virgate ; sepals + hidden by the leaves. 
Leaves recurved. recurva, Wolley-Dod. 
Leaves not recurved (the lower often reflexed). 
Petals acute, subdeltoid at the apex. 
satureoides, Burch. 
Petals obtuse. mixta, Linn. 
Flowers pedicellate. 
Leaves acute ; pedicels longer than the flower. pauciflora, DC. 
Leaves obtuse ; pedicels shorter than the flower. striata, DC. 
