THE PERCY SLADEN MEMORIAL EXPEDITION, 1915-1916 25 
Iphiona polygalifolia, Benth. and Hook. Awas Mountains, 12 km. east of 
Windhuk, on quartzite hill, 9785. 
Pegolettia oxyodonta, DC. Little Karas Mountains, western foothills, near 
Holoog on shale slopes, 9731. Above Ababes, sandy banks of Tsondab 
River, 9188. 
Pulicaria capensis, DC. Ganaams, shale-slopes of Leber River, 9379, 9380. 
Geigeria passerinoides, Harv. Between Kabiras and Nauchas, in sandy places, 
9040. 
Geigeria passerinoides, Harv. forma. Naulduft Mountains, betwen Bull’s 
Mouth Pass and Ababes, on saline plain, 8902. 
Geigeria Schinzii, 0. Hoft'm. Windhuk, shale-slopes, 9769. 
Geigeria pectidea, Harv. North of Aintsas at outspan, in sand, 9243. Between 
Aintsas and Achterfontein at 2nd outspan, 9237. Nomtsas, 9332. 
Below Ababes, in bed of Tsondab River, 9156. 
Geigeria pilifera, Hutchinson. Between Tsondab and Great Fish River, on 
shale-slopes, 9294. North of Aintsas at outspan, in sand, 9240. 
Ondetia linearis, Benth. Bull’s Mouth Pass, 8948. Between Tsubgaus and 
Ganaams, on shale-slopes, 9389. 
Eriocephalus pubescens, DC. Between Haris and the Awas Mountains, on 
high plateau, 9686. Awas Mountains, 12 km. east of Windhuk, on 
quartzite slopes, 9603. 
Pentzia annua, DC. (Matricaria albida, Fenzl.). Holoog, in bed of Great Fish 
River, on drying sand, 9801. 
Pentzia virgata, Less. North of Areb, on sandy plains, 9475. At Kubib, 
9490. 10 km. north-west of Nomtsas, on sandy banks of Usib River, 
8982. 
Pentzia acutiloba, Hutchinson. Great Fish River bed, 9278. 
Pentzia monocephala, Sp. Moore. South of Choaberib, on stony plains, 9460. 
Naukluft Mountains, between Goas and Kabiras, on river-banks, 
9074. Between Haris and the Awas Mountains, on high plateau, 9676. 
Pentzia lanata, Hutchinson. Bull’s Mouth Pass, 8946. Between Gamis and 
Bull’s Mouth Pass. 
Senecio Marlothianus, 0. Hoffm. Windhuk, on shale-slopes, 9622. Below 
Ababes, on breccia-banks of Tsondab River, 9152. Above Ababes, in 
bed of Tsondab River, 9132. 
Tripteris microcarpa, Harv. Bull’s Mouth Pass, 8916. 
Tripteris pachypteris, Harv. Between Nauchas and Areb, on granite in 
stream-bed, 9016. 
Osteospermum muricatum, DC. Nauchas, in river-bed, 9047. Between Goas 
and Kabiras, in river-bed, 9085. 
Dimorphotheca polyptera, DC. In bed of Great Fish River, 9276. 
Arctotis staechadifolia, Berg. Nauchas, in river-bed, 9005. 
