Dissection of Leschenaultia convinces CD insect agency necessary for self-fertilisation in this case.
Primroses and cowslips seem universally to occur in two forms. Very curious to see which plants set seed.
Dissection of Leschenaultia convinces CD insect agency necessary for self-fertilisation in this case.
Primroses and cowslips seem universally to occur in two forms. Very curious to see which plants set seed.
CD’s divergent series explains those anomalous plants that hover between what would otherwise be two species in a genus.
Inclined to see conifers as a sub-series of dicotyledons that developed in parallel to monocotyledons, but retained cryptogamic characters.
Mentions H. C. Watson’s view of variations.
Man has destroyed more species than he has created varieties.
Variations are centrifugal because the chances are a million to one that identity of form once lost will return.
In the human race, we find no reversion "that would lead us to confound a man with his ancestors".