Polystichum kruckebergii from the Sierra Buttes (two years ago - wish I was there now!) #fernfriday #fernsofinstagram https://instagr.am/p/CGseUccp3Aa/
Increased photosynthesis from a deep-shade to high-light regime occurs by enhanced CO2 diffusion into the leaf of Selaginella martensii. http://dlvr.it/RrLqGW