1. Ainsworth, G. C. and G. R. Bisby. 1954. A Dictionary of the Fungi. The Commonwealth Mycol. Institute, Kew, Surrey, Eng. 4th ed., 475 pp.
2. Allen, O. N. 1951. Experiments in Soil Bacteriology. Burgess Publishing Co., Minneapolis, Minn.
3. Barnett, H. L. 1955. Illustrated Genera of Imperfect Fungi. Burgess Publishing Co., Minneapolis, Minn. 218 pp.
4. Trichoderma viride pers. Ex fries, and notes on Hypocrea