Transverse sections of Isoëtes howellii glossopodia
Project 2075: Forrest Freund. 2014. Characterizing Quantitative Variation in the Glossopodia of Three Western North American Isoetes Species - Dissertation by Forrest Freund, Claremont Graduate University.
Viewing Folio F205 Isoëtes howellii 125-B containing 70 media.