1. Allen, P. J. 1955. The role of a self-inhibitor in the germination of rust uredospores. Phytopathology45: 259–266.
2. —. 1957. Properties of a volatile fraction from uredospores ofPuccinia graminis var.tritici affecting their germination and development. I. Biological activity. Pl. Physiol.32: 385–389.
3. Allen, R. F. 1923. A cytological study of infection of Baart and Kanred wheats byPuccinia graminis tritici. J. Agric. Res.23: 131–151.
4. — 1930. A cytological study of heterothallism inPuccinia graminis. J. Agric. Res.40: 585–614.
5. — 1933. A cytological study of the teliospores, promycelia, and sporidia inPuccinia malvacearum. Phytopathology23: 572–586.