142. 102. ACHAEIACEAE-104. CACTACEAE. 



1. TRYPHOSTEMMA Harv. 



sandersoni Harv. Grassveld. All over. 



2. ADENIA Forsk. (including Modecca Lam. and Ophiocaulon 



Hk.f.) 



1. digitata (Harv.) Vryheid, Zululand. 



2. gummifera Harv. Coastbelt. "imFulwa." 



FAMILY 102— ACHARIACEAE. 



Herbs or undershrubs. Leaves alternate, exstipulate. 

 Flowers regular, monoecious. Sepals 3 — 5. Petals 3 — 5, united 

 below. Stamens 3 — 5, affixed to corolla. Corona of 3 — S scales. 

 Ovary superior, 1 celled, with 3 — S parietal placentas, bearing 2 

 or more inverted ovules each. Styles 3 — 10 cleft. Fruit a capsule. 

 Seeds endospermic. 2 genera 2 species. 



Stem twining. Leaves 5—7 lobed. 1 CERATIOSICYOS. 



Above ground, stem wanting. Leaves undivided. 



2 GUTHRIEA. 



1. CERATIOSICYOS Nees. 



eckloni Nees. Midlands, in bush. 



2. GUTHRIEA Bolus. 



capensis Bolus. Drakensberg, 10,000 feet. Under rocks in 

 damp places. 



FAMILY 103— BEGONIACEAE. 



Herbs or undershrubs. Leaves alternate, usually oblique, 

 stipulate. Flowers monoecious. Perianth simple of usually 2 — 5 

 free segments. Stamens numerous. Ovary inferior 2 — 6 celled, 

 usually winged. Ovules many inverted. Styles 2 — 6. Fruit a 

 capsule, rarely a berry. Seeds exendospermic. 1 genus 7 species. 

 BEGONIA L. (Mostly in bush.) 

 L.caffra Meisn. 



2. dregei Ott and Dietr. Inanda, in bush. 



3. geranioides Hk.f. Midlands. Common in bush. 



4. natalensis Hk. Midlands. Common in bush 



5. richardsiana T. Moore. 



6. suffruticosa Meisn. var gueinziana. Inanda, in moist 



bush. 



7. sutherlandi Hk. Midlands. 



FAMILY 104— CACTACEAE. 



Succulent plants, usually with jointed stems. Leaves usually 

 scale-like, often deciduous. Flowers hermaphrodite. Perianth 

 of 8 or more segments. Stamens numerous. Ovary inferior, 1 

 celled, with several parietal placentas. Ovules inverted. Style 



