23 
THE PERCY SLADEN MEMORIAL EXPEDITION, 1915-1916 
River, 9286. Above Ababes, in Tsondab River bed, 9184. At Tsubgaus, 
on sand-dunes of Leber River, 9398. Holoog, in bed of Great & Fish 
River, 9703. 
Mesembrianthemum noctiflorum, Linn. Between Achterfontein and Gelwater 
on sand-dunes, 9230. 
Mesembrianthemum uncinellum, Haw. Between Haris and the Awas Moun- 
tains, on high plateau, 9681. Between Choaberib and Gurumanas, in 
stony places, 9405. 
Tetragonia spicata, Linn. f. South of Choaberib, in stony places, 9457. 
Between Hoffnungsfelde and Haris, on plateau, 9525. 
Aizoon Burchellii, N. E. Br. Between Haris and the Awas Mountains, on high 
plateau, 9687. 
Galenia papulosa, Sond. Above Ababes, in bed of Tsondab River, 9126. 
Galenia crystallina, Fenzl. Between Achterfontein and Gelwater, on sand- 
dunes, 9228. 
Galenia africana, Linn. 8 km. north-west of Nomtsas, on sandy banks of 
Usib River, 9327. 
Trianthema crystallina, Vahl. Between Gellap and Great Fish River, in 
sandy places, 9287. Between Achterfontein and Gelwater, on sand- 
dunes, 9231. 
Anisostigma Schenckii, Schinz. Leber River, very abundant on dunes, 9258. 
Nomtsas, in Great Fish River sand-basin, 9333. North of Aintsas, 
9246. Great Fish River at Holoog, 9806. 
Mollugo Cerviana, Ser. var. y pusilla. Great Fish River, 9800. 
Pharnaceum verrucosum, E. and Z. At Witkobus, on river-flats, 8985. 
Between Hoffnungsfelde and Haris, in sand of river-bed, 9528. 
Pharnaceum (Hypertilis spergulacea, E. Mey.). Little Karas Mountains, 
western foothills, on river-banks near Holoog, 9734. 
Gisekia pharnaceoides, Linn. Holoog, in bed of Great Fish River, 9700. 
Gisekia Miltus, Fenzl. Kuisib River bed at Haris, 9511. 
Limeum aethiopicum, Burm. 8 km. north-west of Nomtsas, in sand in Usib 
River, 9305. Naukluft Mountains, between Goas and Kabiras in river- 
bed, 9069. 
Umbelliferae. 
Heteromorpha arborescens, Ch. and Schl. Between Haris and the Awas 
Mountains, on high plateau, 9678. 
Pituranthos aphylla, 0. Kunze. Naukluft Mountains, at Homnus in river-bed, 
9113. Namseb, limestone substratum, in sand, 9336. Gurumanas, on 
dry slopes, 9421. Between Haris and Aub, in stream-bed, 9017. 
Rubiaceae. 
Oldenlandia strictR, K. Schum. At Kubib, on vlei-ground, 9480. Naukluft 
