intercross

Example Sentences

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In "Cross and Self-Fertilisation," page 156, Darwin quotes the information received from Delpino and referred to in the present letter—namely, that it is the fixed opinion of the Italian gardeners that the varieties do intercross.

From More Letters of Charles Darwin — Volume 2 by Darwin, Francis, Sir

From the curving inwards of the two lobes, as they move towards each other, the straight marginal spikes intercross by their tips at first, and ultimately by their bases.

From Insectivorous Plants by Darwin, Charles

Whatever the cause may be, we may conclude, that in England the varieties never or very rarely intercross.

From Effects of Cross and Self Fertilisation in the Vegetable Kingdom by Darwin, Charles

Lathyrus odoratus, varieties of, never naturally intercross in England.

From Effects of Cross and Self Fertilisation in the Vegetable Kingdom by Darwin, Charles

Mr. Walsh ranks the forms which it may be supposed would freely intercross, as varieties; and those which appear to have lost this power, as species.

From The Origin of Species by means of Natural Selection, 6th Edition by Darwin, Charles