Hurst's Septet Scheme

Hurst: Septet Formulae

Hurst: Septet TraitsHurst: Septet Traits in Columns

Septets and Styles

Hurst: Origin of the Moss Rose (1921)

Hurst: Chromosomes and Characters (1925)

Hurst: The Conception of a Species (1927)

Hurst: The Mechanism of Heredity and Evolution (1927)

Harrison & Blackburn: Rose pollen (1927)

Hurst: Genetics of the Rose (1928)

Hurst: Differential Polyploidy (1928)

Hurst: Embryo-sac Formation (1931)

Hurst: Spontaneous Polyploids (1932)

Hurst: Polyploid Species with Pics (1932)

Gustafsson: Differential Polyploidy in Rubus (1939)

Blackhurst: Rubiginosa Hybrids (1948)

Darlington: Integrated Species Differences (1949)

Wylie: Why Caninae roses are different (1975)

Yokoya, et al. Nuclear DNA Amounts in Roses (2000)
In the Pimpinellifoliae, DNA amounts of tetraploids were disproportionately larger than those of diploids which suggests that they originated as hybrids with species of sections with larger DNA amounts. [CybeRose: i.e., differential polyploidy.]


Macfarlane: Microscopic Analysis of Hybrids (1890)

Macfarlane: Flowering Period and Vigor of Hybrids (1891)

Macfarlane: Minute Structure of Plant Hybrids (1892)

Hurst: Partial Prepotance in Paphiopedilum (1900)

Comparison of Rosa sayi Schwein. and Carman's hybrid
of 'Harison's Yellow' and R. rugosa. (1890)

Logan: Origin of the Logan berry (1902)

J. Hered.: Is the hybrid origin of the Loganberry a myth? (1916)

Hurst: History of the Garden Roses (1941)

Gustafsson: Constitution of the Rosa canina complex (1944)

Crane & Darlington: Origin of New Forms in Rubus, I (1927)

Crane & Thomas: Reproductive Versatility in Rubus (1949)

Britton & Hull: Mitotic instability in Rubus (1957)

Malinowski: Differential pairing, suppression of characters (1927)

Riley: Wheat Septets (1958)

Sax: Origin and Relationships of the Pomoideae (1931)

Challice: Phenolic compounds of the subfamily pomoideae (1973)