Biosystematics of Indian plants. III. Veronica anagallis complex

Abstract

Tetraploid and hexaploid races were discovered inV. anagallis Linn. from Kashmir and Punjab plains respectively. There are significant morphological differences between the two races. A cytotaxonomic investigation was, therefore, undertaken. Cytological studies reveal that the polyploid races are, in all probability alloploid in character. In view of their distinct morphological and cytological characteristics and geographical isolation, a consideration of the two races ofV. anagallis complex as two subspecies of the parent species, seems to be justified. However, before this is done, a comparison with the type material of the species needs to be undertaken. The races are geographically isolated. The pattern of distribution is indicative of the fact that the tetraploid prefers colder and northern areas, while the hexaploid is adapted to warmer and southern areas.