728 Fritsch and Haines.—The Moisture-relations of AIgae. 
If. 
Literature cited. 
1. Fritsch, F. E. ( 1916 ) : The Morphology and Ecology of an Extreme Terrestrial Form of 
Zygne7na ( Zygogoniuni ) ericetorum (Kuetz.), Hansg. Ann. Bot., xxx, p. 135, 1916. 
2. - ( 1922 ) : The Moisture-relations of Terrestrial Algae. I. Some General 
Observations and Experiments. Ibid., xxxvi, p. 1, 1922. 
3. Piercy, A. ( 1917 ): The Structure and Mode of Life of a Form of Hormidium flaccidunt , 
A. Braun. Ibid., xxxi, p. 513, 1917. 
4. Schroeder, G. ( 1886 ) : Ueber Austrocknungsfahigkeit der Pflanzen. Diss., Tubingen, 
1886. 
