J. C. Parks

ALLOZYME, SPORE AND FROND VARIATION IN SOME SCOTTISH POPULATIONS OF THE FERNS CYSTOPTERIS DICKIEANA AND CYSTOPTERIS FRAGILIS

S. Lindsay, A. Dyer, J. C. Parks, 2000 .

Distribution of gametophytic populations of Vittaria and Trichomanes in Pennsylvania

J. C. Parks, 1989 .

The fern genera Vittaria and Trichomanes in the northeastern United States

D. Farrar, B. McAlpin, J. C. Parks, 1963 .

A revision of North American and Caribbean Melanthera (Compositae)

J. C. Parks, 1973 .