Notes on some plants of Southern Africa chiefly from Natal von Hilliard, Olive M., Burtt, Brian L.

The geographical distribution of Compositae native to Natal von Hilliard, Olive M.

Streptocarpus An African plant study von Hilliard, Olive M., Burtt, Brian L.

Notes on some plants of Southern Africa chiefly from Natal von Hilliard, Olive M., Burtt, Brian L.

Notes on some plants of Southern Africa chiefly from Natal von Hilliard, Olive M., Burtt, Brian L.

The tribe Selagineae (Scrophulariaceae) von Hilliard, Olive M.

Flowers of the Natal Drakensberg the lily, iris and orchid families and their allies von Hilliard, Olive M.

The botany of the Southern Natal Drakensberg von Hilliard, Olive M., Burtt, Brian L.

Flora of Southern Africa which deals with the territories of South Africa, Lesotho, Swaziland, Namibia and Botswana von Hilliard, Olive M.

Zaluzianskya (Scrophulariaceae) in south eastern Africa and the correct application of the names Z. capensis and Z. maritima von Hilliard, Olive M., Burtt, Brian L.

Some generic concepts in Compositae-Gnaphaliinae von Hilliard, Olive M., Burtt, Brian L.

Gnaphaliinae Compositae in Africa and Madagascar von Hilliard, Olive M.

Names in Gnaphalium, Xeranthemum and Helichrysum published between 1753 and 1800 von Hilliard, Olive M., Burtt, Brian L.

Helichrysum fructicosum its correct name and taxonomic status von Hilliard, Olive M., Burtt, Brian L.

Notes on some plants of Southern Africa chiefly from Natal von Hilliard, Olive M., Burtt, Brian L.

Compositae in Natal von Hilliard, Olive M.

Notes on some plants of Southern Africa chiefly from Natal von Hilliard, Olive M., Burtt, Brian L.

Grasses, sedges, restiads & rushes of the Natal Drakensberg von Hilliard, Olive M.

The Manuleae a tribe of scrophulariaceae von Hilliard, Olive M.

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Dierama the hairbells of Africa von Hilliard, Olive M., Burtt, Brian L.

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