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Citation: Ks. Renzaglia et al., Architecture of the sperm cell of Psilotum, AM J BOTANY, 88(7), 2001, pp. 1151-1163

Authors: Whittier, DP Braggins, JE

Citation: Dp. Whittier et Je. Braggins, Observations on the mature gametophyte of Phylloglossum (Lycopodiaceae), AM J BOTANY, 87(7), 2000, pp. 920-924

Authors: Whittier, DP Pintaud, JC

Citation: Dp. Whittier et Jc. Pintaud, Spore germination and early gametophyte development in Stromatopteris, AM FERN J, 89(2), 1999, pp. 142-148