Oculate, with eye-shaped marking.
Officinal, used in medicine, therefore kept in the shops.
Offset, short branches next the ground which take root, [40].
Oides, termination, from the Greek, to denote likeness; so Dianthoides, Pink-like.
Oleraceous, esculent, as a pot-herb.
Oligos, Greek for few; thus Oliganthous, few-flowered, &c.
Olivaceous, olive-green.
Oophoridium, a name for spore-case containing macrospores.
Opaque, applied to a surface, means dull, not shining.
Operculate, furnished with a lid (Operculum), as the spore-case of Mosses, [163].