Cruciate, or Cruciform, cross-shaped. Cruciform Corolla, [86].
Crustaceous, hard and brittle in texture; crust-like.
Cryptogamous Plants, Cryptogams, [10], [156].
Cryptos, concealed, as Cryptopetalous, with concealed petals, &c.
Crystals in plants, [137].
Cucullate, hooded, or hood-shaped, rolled up like a cornet of paper, or a hood (cucullus), as the spathe of Indian Turnip, [75].
Culm, a straw; the stem of Grasses and Sedges, [39].
Cultrate, shaped like a trowel or broad knife.
Cuneate, Cuneiform, wedge-shaped, [53].
Cup-shaped, same as cyathiform or near it.