234 Plants and their Ways in South Africa 



Style as long as the petals. 

 Barosma. — Petals sessile. Flowers axillary. 

 Agathosma. — Petals clawed. Flowers terminal. 

 Fruit a many-celled berry. 



Citrus. — Trees, often with axillary thorns. 



The orange and lemon belong to this genus, which is not native 

 in South Africa. 

 Diosma. — Petals and capsule longer than the calyx. Anthers tipped 

 by a gland. Ovary sunk in the disc. 



Small shrubs with alternate or opposite heath-like leaves. 

 Flowers white or reddish. 



Calodendron (Wilde Kastanien) is found in forests of 

 the Eastern districts and Natal. Petals much longer than the 



ii 



Fig. 235. — I. Section through flower of Barosuia crenulata after the removal of the 

 petals (magnified) : st, fertile stamens ; sto, barren stamens (staminodes) ; d, lobes 

 of disc. II. Diagram of flower : sto, staminodes ; d, disc. (From Edmonds and 

 Marloth's " Elementary Botany for South Africa.") 



calyx. Staminodia petaloid. Leaves opposite and decussate, 

 evergreen. Flowers white or purplish, in showy panicles 

 terminating the branches. 



Adenandra (" Shepherd's Delight "). — Petals broad. 

 Stamens and staminodia tipped with a gland. Capsule 

 gland dotted. Small shrubs, with alternate or rarely opposite 

 eaves, and pretty white flowers flushed with red at the back. 



Barosma. — Petals much longer than the calyx. Stamens 

 longer than the thread-like or petaloid staminodia, both bearing 

 glands at the tip. Capsule eared at the tip. Small shrubs, 

 leaves mostly opposite, bordered with glands. B. crenata 

 is the true " Buku." 



Agathosma. — Petals longer than the calyx. Staminodia, 

 like slender clawed petals. Ovary 2-4-lobed. Small shrubs, 



