Evolution and biology
Author's research and photographs show extreme biology and transitional evolution in the morel mushroom including phenotypic variation and a reversion anomaly.
The morel is in the process of evolving from a single-celled organism (a yeast) into a multi-celled organism. This hasn't happened in hundreds of millions of years, and now the process is observable having begun about 50,000 years ago for the morel and continuing.
Research by Author1. An Anomaly of Morchella as a Tool for the Study of Differentiation
2. Phenotypic Variation as an Adaptation Mechanism by Morchella Figures 1-2 - Pigmented Mycelium
Figures 3-6 - Differentiation
Figure 7 - Variations in Anomalies
Figure 8 - Variations in Morphology
Graduate Research: Novak, G. E. 1981. Edotrophic sporulation by the yeast Nadsonia fulvescens. Can. J. Microbiol. 27: 967-970.