| Description | Parker, R N (Dehradun, India)
Paterson, John (Glasgow)
Percival, John (University College, Reading)
Perkins, Lilly G (Jamaica)
Percy Phillips, E (Pretoria, South Africa)
Pickard, Joseph F (Leeds)
Pinder, Lt Col H S (near Marseilles, France)
Potts, Leo (Grey University College, Bloemfontein, South Africa)
Posthumus[?], O (Groningen, Holland)
Proin, D (Royal Botanic Gardens, Kew) |