1906 R. H. Lock Variation, Hered. & Evol. v. 141 In the case of a half-race a small percentage only of seedlings is found to produce plants which show the racial character.

1906 R. H. Lock Variation, Hered. & Evol. v. 145 A half-race might have been defined as a strain in which the character of the complete race is usually latent, and only rarely appears.

1928 B. D. Jackson Gloss. Bot. Terms (ed. 4) 169/2 Half-race, a form intermediate between a species and a variety of it, producing but few seedlings of the racial character, the majority reverting to the specific type.