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Darwin, Charles, 1809-1882

"The Different Forms of Flowers on Plants of the Same Species"


-- Sikkimensis.
-- Sinensis.
relative fertility.
long-styled.
short-styled.
transmission of form, constitution and fertility.
equal-styled variety.
-- stricta.
-- veris.
difference in structure between the two forms.
degrees of fertility when legitimately or illegitimately united.
fertility possessed by illegitimate plants.
equal-styled red variety.
long-styled.
length of pistil.
-- verticillata.
-- villosa.
-- vulgaris (var. acaulis Linn.).
pollen-grains.
relative fertility of the two forms.
length of pistil
Primula vulgaris, var. rubra.
Prunella vulgaris.
Psychotria.
Pulmonaria angustifolia.
anthers.
-- azurea.
-- officinalis.
number of flowers.
pistil.
Ranunculus aquatilis.
Ray-florets, their use.
Rhamnus catharticus.
size of corolla.
-- frangula.
-- lanceolatus.
Rhinanthus crista-galli.
Rubiaceae.
size of anthers.
stigmas.
number of heterostyled genera.
Rudgea eriantha.
Rue, the common.
Ruellia tuberosa.
Salvia.
-- cleistogama.
-- Horminum.
Satureia hortensis.
Scabiosa arvensis.
-- atro-purpurea.
-- succisa.
Scott, J., on Primula auricula.
on Primula vulgaris.
on Primula var. rubra.
on Primula Sikkimensis.
on Primula farinosa.
homostyled Primulae.
hybrids.
length of pistil.
Hottonia palustris.
Androsace vitalliana.


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