52. 13. LEMNACEAE— IS. UESTIONACEAE. 



Perianth none. Spathe convolute below widely opening. 



3 ZANTEDESCHIA. 



1. PISTIA L. 



stratiotes L. In stagnant pools of Coast and Midland rivers. 



2. STYLOCHITON Leprieur. "umFana-ka-sihlanjana." 



natalense Schott. Coastbelt. 



3. ZANTEDESCHIA. Spreng (Richardia Kunth). "in Tebe.'' 



1. aethiopica Spreng. (R. africana Kunth). Common all 



over in moist places. 



2. hastata (Hk.f.) Eng. Coast and Midlands. Common. 



3. albomaculata Baill. Midlands. 



4. melanoleuca (Hk. f.) Engl. Inanda. 



5. rehmanni (N.E. Br.) Engl. Upper districts. 



FAMILY 13— LEMNACEAE. 



Minute floating herbs, consisting of fronds. Flowers in a 



cavity of frond, consisting of 1 — 2 stamens (male flowers) and 1 



ovary (female flowers). Perianth 0. Ovary 1 celled. Ovules 1—6. 



Seeds minute endospermic. 2 genera 4 species. 



1. Fronds rootless. Flowers on back of frond. 1 WOLFFIA. 



Fronds with 1 or more roots. Flowers at margin of frond. 



2 LEMNA. 



1. WOLFFIA Hk. 



1. michellii Schleid. 



2. denticulata Hegelmaier. 



2. LEMNA L. 



1. minor L. Common. 



2. gibba L. 



FAMILY 14— FLAGELLARIACEAE. 



Herbs climbing by tendril tipped leaves. Flowers hermaphro- 

 dite. Perianth segments 6. Stamens 6. Ovary superior 3-celled. 

 Fruit a berry, 1 — 2 seeded. Seeds with mealy endosperm. 1 genus, 

 1 species. 

 FLAGELLARIA L. "uGonoti." 



guineensis Schumach. Common around margins of bush, 

 Coast and Midlands. 



FAMILY 15— RESTIONACEAE. 



Rush or sedge like herbs. Leaves linear or reduced to a 

 sheath. Flowers dioecious. Perianth of 3—6 membranous or 

 scarious segments. Stamens 2 — 3. Anthers 1 celled. Ovary 

 superior 1 — 3 celled with 1 — 3 ovules. Fruit dry. Endosperm 

 mealy. 1 genus 1 species. 



