126. 80. EUPHORBIACEAE-82. BUXACEAE. 



17. MACARANGA Thouars. 



capensis Bth. Common coastbelt tree. Sometimes dominant 

 in Hygrophilous bush. "umFongofongo." 



18. RICINUS L. "Castor Oil." "umHlakuva." 



communis L. Ruderal. Common all over. 



19. ADENOCLINE Turcz. Herbs. 



1. bupleuroides Prain. Common all over. 



2. mercurialis Turcz. Midlands and Drakensberg. 



3. serrata Turcz. 



20. GELONIUM Roxb. 



africanum Mull. Shrub or tree. Near Durban. 



21. DALECHAMPIA L. (Usually climbers.) 



1. volubilis E.M. Near Durban. 



2. capensis Spreng. Common coast and Midlands. 



22. CTENOMERIA Harv. (Usually climbing.) 



1. cordata Harv. Coastbelt. 



2. schlechteri Prain. Umkomanzi River, 3,000 ft. 



23. TRAGIA L. (Usually climbing.) 



1. natalensis Sond. Inanda. 



2. collina Prain. Colenso, 4-5,000 ft. 



3. meyeriana Mull. Coast to Drakensberg. 



4. durbanensis O. Kuntze. Coastbelt. 



24. SPIROSTACHYS Sond. "umTomboti." 



africanus Sond. Common coastbelt tree. 



25. SAPIUM P.Br. 



1. simii O. Kuntze. Coast and Midlands. Common under- 



sprouts. 



2. reticulatum Pax. Shrub or tree. Coastbelt. 



3. mannianum Bth. Common coastbelt tree. "umVumu." 



"umHlalampunzi." 



FAMILY 81— CALLITRICHACEAE. 



Herbs. Leaves opposite, simple, entire. Flowers minute, 

 monoecious. Perianth 0, but bracteoles sometimes 2. Stamen 

 1. Anthers 2 celled. Ovary 4 celled. Ovules 1 in each cell, pen- 

 dulous, inverted. Styles 2, free. Fruit separating into 4 meri- 

 carps. Seeds endospermic. 1 genus 2 species. 



CALL1TRICHE h. 



1. bolusii Schon and Pax. Drakensberg. 



2. compressa N.E.Br. Umbilo, in a stagnant pool 



FAMILY 82— BUXACEAE. 



Shrubs or trees. Leaves opposite, simple, entire. Flowers 

 regular, monoecious. Perianth 4 in male, 4 — 6 in female flowers. 



