Plants Collected in the Percy S laden Memorial Expeditions. 57 



On the other hand, a specimen labelled " Little Bushmanland. 

 Eocky slopes at Eenriet, 3,000 ft., 4069; 15.1.09," comes close to 

 the type of — 



10. C. Alstoni, Schonl. et Bak. fil, in Journ. of Bot., 1902, 

 p. 98. 



Lastly, a specimen labelled " Koeberg (Bushmanland). Common 

 in rock crevices, 6284 ; 12.1.11," agrees closely with the type of — 



11. C. Mariana, Marl., in Trans. S. A. Phil. Soc, xviii., p. 46 

 (1907), but I must add that it is hardly possible always to determine 

 the species most nearly allied to C. hemisphcerica, except from fresh 

 or exceptionally well-preserved specimens, and the last names must, 

 therefore, be accepted with some reserve. 



GENTIANACE^E.* 



By A. W. Hill. 



1. SEBjEA. 

 1. S. (Tetrandria) ecarinata, A. W. Hill. 



Species S. albenti, B. Br., ob calycem ecarinatum affinis, sed 

 tenuior, corolla antherisque minoribus glandulis styli prope apicem 

 dispositis. 



Annua erecta, tenuis. Caulis 10-12 cm. altus, simplex. Folia 

 glabra, opposita, elliptico-cordata vel elliptica, obtusa, 7-9 mm. 

 longa, 5-7 mm. lata, glauca, carnosa. Plores albi, in cymas com- 

 pactas corymbiferas paucifloras terminales dispositi ; bracteae foliosae, 

 ovato- vel obovato-ellipticse, subacutae, conspicuaa ; pedicelli brevis- 

 simi. Calyx 5 mm. longus, segmentis obovatis subacutis vel sub- 

 truncatis erosis ecarinatis. Corollas tubus 5 mm. longus ; lobi ovati, 

 subacuti, 2 - 5 mm. longi. Filamenta 0*5 mm. longa ; antherae 

 0"5 mm. longae, apice glandula stipitata instructa. Stylus 3 mm. 

 longus, prope apicem biglandulosus, stigmate bilabiato. 



Cape Begion. Piquetberg Div ; Pickenier's Pass, east side near 

 summit, damp places, 5229. 



* Percy Sladen Memorial Expeditions in South- West Africa, 1908-1911. Report 

 No. 13. 



