56 
2-4 mm. long and two raised ridges above the claw. Alae 1-3-1-4 cm. long, 8 mm. broad, 
oblong, obtuse, with a linear claw 3 mm. long and a short downward projecting tooth. 
Carina 1-3-1-5 cm. long, obtuse, concave, with a linear claw 5-8 mm. long, and a pro- 
jecting tooth almost at right angles to the limb. Staminal sheath 1-1-3 cm. long, 
1 -5-2 mm. broad at the base ; free portion of the filaments shorter than the tube, arcuate ; 
anthers 0-5 mm. long, oblong; free stamen bent near the base, but not swollen. Ovary 
shortly stipitate, 1-1-1 -2 cm. long, four-winged : style 3-3-5 mm. long, arcuate, pubescent 
near the apex; stigma small. Fruit 9-15 cm. long, 1-1-1 -2 cm. broad, linear, acuminate, 
broadly four-winged, with a lighter coloured band in the middle of the valves. Seeds 
dark reddish-brown, 5 mm. long, 2-5 mm. broad, oblong, almost truncate at both ends, 
glabrous. 
TROPICAL AFRICA: Rhodesia: Victoria Falls, April, Flanagan 3109; North-West 
Rhodesia, without locality, Rogers 8747. 
This is a very peculiar species with exactly the appearance of S. aculeata in regard 
to its vegetative and floral characters, but with fruits broadly four-winged as in S. tetrap- 
tera. \t apparently provides a link between the two sections of the genus. 
