1904
Bibliografía (36 obras)
The Aloineae, a biosystematic survey
1979
Chromosome numbers, pollen fertility, and pollen size in Haworthia species and hybrids
1973
Chromosome morphology in Astroloba and Poellnitzia
1972
Hybridization studies in Haworthia
1971
Evolutionary ecology
1970
Meiosis in a triploid Haworthia with a chromosomal translocation
1969
Chromosome morphology in Gasteria species and hybrids
1968
Chromosomal alteration in relation to speciation in Haworthia
1967
Chromosome studies of diploid and polyploid plants of Haworthia
1966
Two new translocations in Haworthia
A chromosome translocation in three Haworthia plants
Cytogenetic studies of an aneuploid species of Haworthia with special reference to its origin
Cell Biology [book review]
1965
Taxonomic studies of Astroloba by Paper Chromatography
Some new chromosome studies in the Coarctatae and other sections of Haworthia
Some polyploid plants of Haworthia
Some interesting plants from the South African Karroo
1964
Paper chromatographic studies in the Aloineae
1963
Families of flowering plants of Southern Africa
Chromosome studies in three species of Felicia with notes on nomenclature
UK's Nobel Prize winner in medicine
Two aneuploid plants of Haworthia
1962
Chromosomes of some species of Agapanthus
Chromosome Numbers in Gasteria, Astroloba and Hybrids
1961
Chromosome studies in some South African Dicotyledons
The separation of nine species of the Iridaceae by paper chromatography
Chromosomes in Agapanthus
1960
Chromosomes of some plants from the Kruger National Park
Chromosome breakage in Tulbaghia violacea by radiation and chemicals
Polyploidy in South African species of Aloes
1959
Chromosome studies in Gasteria species and hybrids
Chromosome aberrations in natural populations of Tradescantia paludosa
1958
Introduction to genetics and cytogenetics
1948
Opuscula
