Paracytic (Syndetocheilic) Stomata in Carboniferous Seed Ferns
L. L. OESTRY STIDD 1 and
B. M. STIDD 2
1 Department of Botany, University of Illinois, Urbana 61801
2 Department of Biological Sciences, Western Illinois University, Macomb 61455
Stomata of the paracytic type have been discovered on the lower pinnule surface of the Carboniferous seed fern foliage species Alethopteris sullivanti. The stomatal complex is not visible when the cuticle is in place. This is apparently the first report of paracytic stomata in Carboniferous plants.
Submitted on March 4, 1976