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Darwin, Charles, 1809-1882

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

Gesellsch. Natur. Freunde'
October 20, 1874 page 90.
I have added Thelymitra, as from the account given by Mr. Fitzgerald in his
magnificent work on 'Australian Orchids' it appears that the flowers of this
plant in its native home never open, but they do not appear to be reduced in
size. Nor is this the case with the flowers of certain species of Epidendron,
Cattleya, etc. see second edition of my 'Fertilisation of Orchids' page 147,
which without expanding produce capsules. It is therefore doubtful whether these
Orchideae ought to have been included in the list. From what Duval-Jouve says
about Cryptostachys in 'Bulletin of the Soc. Bot. de France' tome 10 1863 page
195, this plant appears to produce cleistogamic flowers.
the other additions to the list are noticed in my text.)
DICOTYLEDONS.
BORAGINEAE:
Eritrichium.
CONVOLVULACEAE:
Cuscuta.
SCROPHULARINEAE:
Scrophularia.
Linaria.
Vandellia.
ACANTHACEAE:
Cryphiacanthus.
Eranthemum.
Daedalacanthus.
Dipteracanthus.
Aechmanthera.
Ruellia.
LABIATAE:
Lamium.
Salvia.
NYCTAGINEAE:
Oxybaphus.
Nyctaginia.
ASCLEPIADAE:
Stapelia.
CAMPANULACEAE:
Specularia.
Campanula.
PRIMULACEAE:
Hottonia.
COMPOSITAE:
Anandria.
CRUCIFERAE:
Heterocarpaea.
VIOLACEAE:
Viola.
CISTINEAE:
Helianthemum.
Lechea.
MALVEACEAE:
Pavonia.


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