St. fcESEDACEAE— 59. HYDROSTACHYACEAE. 9?. 



6. rudatisii Gilg and Benedict. Alexandra County, 2,000 ft., 



and N.E. Zululand. 



7. gueinzii Sond. Coast and Midlands. "uMabusana."' 



8. albitrunca Burch. Weenen County. Dry bush. "isiNami." 



FAMILY 56— RESEDACEAE. 



Herbs or undershrubs. Leaves alternate, stipulate. Flowers 

 in spikes or racemes, irregular. Sepals 4 — 8. Petals 2 — 8, rarely 



0. free. Stamens 3—40, free or united at base. Carpels 2—6, 

 superior, free or united. Ovules inverted. Seeds exendospermic. 

 Embryo curved. 1 genus 1 species. 



OLIGOMERIS Cambess. 



dregeana Presl. Coast and Drakensberg. Van Reenen. 



FAMILY 57— DROSERACEAE. 



Herbs (insectivorous). Leaves with glandular tentacles. 

 Flowers regular, hermaphrodite. Calyx 4 — 8, lobed. Petals 4 — 8, 

 usually 5, free. Stamens 4 — 20. Ovary superior 1 celled. Ovules 

 numerous, inverted. Styles or style branches 2 — S. Fruit a cap- 

 sule. Seeds endospermic. 1 genus 3 species. 

 DROSERA L. 



1. burkeana Planch. Common all over. Usually in moist 



places, but not always. 



2. ramentacea Burch. Midlands and Drakensberg. 



3. natalensis Diels. Jolivet, 3,000 ft. 



FAMILY 58— PODOSTEMONACEAE. 



Aquatic herbs attached to rocks in streams. Flowers her- 

 maphrodite. Perianth of 2 — 3 scales or larger, 3 parted. Stamens 

 1 — 4. Ovary superior, 1 — 3 celled, with central placenta. Ovules 

 numerous, inverted. Fruit capsular. Seeds endospermic. 2 

 genera 2 species. 



Flowers regular, 3 parted. 1 TRISTICHA. 



Flowers irregular. Perianth of 2 scales. 



2 SPHAEROTHYLAX. 



1. TRISTICHA Thouars. 



hypnoides Spreng. Midland rivers. Fairly common. 



2. SPHAEROTHYLAX Bischoff. 



algiformis Bisch. Apparently rare. (Doubtful.) 

 (The Tristichaceae have recently been separated by Willis as 

 a distinct family.) 



FAMILY 59— HYDROSTACHYACEAE. 



Aquatic herbs attached to rocks in streams. Leaves with a 

 sheath and ligule. Flowers dioecious. Stamen 1 with separated 



