Does stomatal patterning in amphistomatous leaves minimize the CO diffusion path length within leaves?

Photosynthesis is co-limited by multiple factors depending on the plant and its environment. These include biochemical rate limitations, internal and external water potentials, temperature, irradiance and carbon dioxide ( ). Amphistomatous leaves have stomata on both abaxial and adaxial leaf surfaces.

Hymenasplenium volubile: documentation of its gametophytes and the first record of a hemiepiphyte in the Aspleniaceae.

Background And Aims: Through careful field examination of the growth habit of the gametophytes and sporophytes of Hymenasplenium volubile across an ontogenetic series, we aim to understand better the evolution of epiphytism in this poorly understood group of ferns.

Methods: We made field observations of H. volubile sporophytes and gametophytes, and brought specimens back to the lab for microscopic analysis.