Some Notes on the South African Erysiphaceae. 243 
On Vigna angustifolia : 
Muckleneuk, Pretoria ; leg. I. B. Pole Evans, 18/4/11 (1413), 
22/4/11 (1510), 27/4/13 (6693). 
Garstfontein, Pretoria Dist., 21/4/12 ; leg. P. J. Pienaar 
(2252). 
Oidial stage only (Oidiopsis taurica Lev.) : — 
On Tropeolum major : 
Pretoria, leg. I. B, Pole Evans, 17/3/08 (473), 6/2/09 (638, 945). 
Kentani, CP., 14/2/13 ; leg. A. Pegler (5668). 
On Z antecleschia sp. : 
Pretoria, 4/3/09 ; leg. I. B. Pole Evans (602). 
On Erythrina caffra : 
Natal, 11/4/11 ; leg. 1. B. Pole Evans (1394). 
On Passiflora sp. : 
Pretoria, 30/3/11 ; leg. I. B. Pole Evans (1414). 
On Teucrium riparmm : 
Pietermaritzburg, 8/4/11 ; leg. I. B. Pole Evans (1435). 
Oidiiim spp. have also been collected on the following hosts : — 
Buddleia salvifolia : 
Pretoria Dist., 11/4/11 ; leg. E. M. Doidge (1373). 
Cannahus sativa : 
Potchefstroom, 20/4/12 ; leg. P. van der Bijl (2258). 
Chenoijodium amhrosioidcs : 
12/11/08 (541). 
Domheya cymosa : 
Table Mt., Natal, 18/4/11 ; leg. C. Fuller (1678). 
Hermannia sp. : 
Pretoria, March, 1910; leg. E. M. Doidge (896). 
Hibiscus esculent us : 
Daspoort, Pretoria Dist., 27/4/07 (393). 
Le^idium capense : 
Irene, Pretoria Dist., 23/1/08; leg. I. B. Pole Evans (445). 
Leucas Martinicensis : 
Wonderboom, Pretoria Dist., 18/3/11; leg. I. B. Pole Evans 
(1297). 
Pelargonium aconitiphyllum : 
Pretoria Dist., 4/12/11 ; leg. J. Erasmus (1943). 
Sisyrimhium sp. 
Pretoria Dist., 16/11/11 ; leg. P. J. Pienaar (1963). 
Solamwi tuberosum : 
Skinner's Court, Pretoria, 6/1/10 ; leg. I. B. Pole Evans (702). 
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