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Darwin, Charles, 1809-1882

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


Column 2: Illegitimate unions : proportional number of flowers which produced
capsules.
Column 3: Illegitimate unions : average number of seeds per capsule.
Primula veris : 69 : 65.
Primula elatior : 27 : 75.
Primula vulgaris : 60 : 54.
Primula Sinensis : 84 : 63.
Primula Sinensis (second trial) : 0 : 53.
Primula Sinensis (Hildebrand) : 100 : 42.
Primula auricula (Scott) : 80 : 15.
Primula Sikkimensis (Scott) : 95 : 31.
Primula cortusoides (Scott) : 74 : 66.
Primula involucrata (Scott) : 72 : 48.
Primula farinosa (Scott) : 71 : 44.
Average of the nine species of Primula : 88.4 : 69.
Hottonia palustris (H. Muller) : - : 61.
Linum grandiflorum (the difference probably is much greater) : - : 69.
Linum perenne : - : 20.
Linum perenne (Hildebrand) : 0 : 0.
Pulmonaria officinalis (German stock, Hildebrand) : 0 : 0.
Pulmonaria angustifolia : 35 : 32.
Mitchella repens : 20 : 47.
Borreria, Brazilian sp. : - : 0.
Polygonum fagopyrum : - : 46.
Lythrum salicaria : 33 : 46.
Oxalis Valdiviana (Hildebrand) : 2 : 34.
Oxalis Regnelli : 0 : 0.
Oxalis speciosa : 15 : 49.
The two or three forms of the same heterostyled species do not differ from one
another in general habit or foliage, as sometimes, though rarely, happens with
the two sexes of dioecious plants.


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