Media type: E-Article Title: The Effects of a Calcium-Deficient Medium on Sporelings of Leucolejeunea clypeata Contributor: Jr., Edwin E. Geldreich imprint: American Bryological and Lichenological Society, 1948 Published in: The Bryologist Language: English DOI: 10.1639/0007-2745(1948)51[229:teoacm]2.0.co;2 ISSN: 0007-2745 Keywords: Plant Science ; Ecology, Evolution, Behavior and Systematics Origination: Footnote: