A grain seen in profile; another seen from the front side.
This image is from Lycopodium in Sayre's Manual of Organic Materia Medica and Pharmacognosy, 1917.

A grain seen in profile; another seen from the front side.
This image is from Lycopodium in Sayre's Manual of Organic Materia Medica and Pharmacognosy, 1917.