118 
KEY TO FLORA OF CAPE PENINSULA 
Fruit a silicula. 
Silicula dehiscent. 
Valves boat-shaped, partition narrow. 
Lepidium, Linn. 
Valves not boat-shaped, partition broad. 
Silicula < 2 Is. long, 2-seeded. 
Alyssum, Linn. 
Silicula 2 Is. or more long, 2 or more seeded. 
Silicula oval or orbicular. 
Heliophila, Linn. 
Silicula triangular-cuneate. 
Capsella, Vent. 
Silicula indehiscent. 
Leaves not sagittate at base. 
Petals scarcely as long as sepals. 
Senebiera, DC. 
Petals much longer than the sepals. 
Brachycarpaea, DC. 
Leaves sagittate at base. 
Neslia, Desv. 
Chamira 
Cardamine 
Heliophila 
Stems more or less woody (perennials). 
cornuta, Thunb. 
arnica, na, Linn. 
Leaves lobed. 
abrotanifolia, Banks. 
Leaves entire. 
Siliqua stipitate ; leaves up to 4 Is. wide. 
callosa, DC. 
Siliqua sessile ; leaves up to 2 Is. wide. 
Inflorescence long-pedunculate. 
subidata, Burch. 
Inflorescence not long-pedunculate. 
Racemes dense, few-fld. ; petals mauve-pink. 
scoparia, Burch. 
Racemes lax, many-fld. ; petals blue. 
Siliqua \ 1. wide, tipped with a filiform style. elata, Sond. 
Siliqua 1 — 1^ 1. wide, tipped with a subulate style. 
linear if olici, Burch. 
Stems more or less herbaceous (annuals). 
Margins of the siliqua crenate or undulate (moniliform). 
Petals < 2 Is. long. pusilla, Linn. f. 
Petals > 2 Is. long. 
All the stamens toothed. dentifera, Sond. 
Some or all the stamens toothless. 
Siliqua tipped with a knob-like style. dissecta, Thunb. 
Siliquas not tipped with a knob-like style. 
Plant more or less hairy below ; stamens toothless. 
coronopifolia, Linn. 
