intercross

Example Sentences

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Much other indirect evidence could be given with respect to the extent to which varieties of the same species spontaneously intercross.

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

Column 3: Plants from an intercross between the Plants of the Eighth Self-fertilised Generation.

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

Mr. Cheeseman also remarks, that as certain Orchids in New Zealand which require insect-aid for their fertilisation bear only a single flower, distinct plants cannot fail to intercross.

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

For the sides approach in an arching way, surrounding a considerable cavity, and the marginal spine-like bristles merely intercross their tips, leaving intervening spaces through which one may look into the cavity beneath.

From Darwiniana; Essays and Reviews Pertaining to Darwinism by Gray, Asa