Definition of Class gymnospermae

1. Noun. Plants having naked seeds not enclosed in an ovary; in some systems considered a class (Gymnospermae) and in others a division (Gymnospermophyta); comprises three subdivisions (or classes): Cycadophytina (class Cycadopsida) and Gnetophytina (class Gnetopsida) and Coniferophytina (class Coniferopsida); in some classifications the Coniferophytina are divided into three groups: Pinophytina (class Pinopsida) and Ginkgophytina (class Ginkgopsida) and Taxophytina (class Taxopsida).


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Literary usage of Class gymnospermae

Below you will find example usage of this term as found in modern and/or classical literature:

1. Flora of the Rocky Mountains and Adjacent Plains, Colorado, Utah, Wyoming by Per Axel Rydberg (1917)
"Class. GYMNOSPERMAE. NAKED-SEEDED PLANTS. Perianth none; trees or shrubs with needle- or scale-like leaves not sheathing. Pistillate flowers in aments; ..."

2. The Flora of the Palouse Region: Containing Descriptions of All the by Charles Vancouver Piper, Rolla Kent Beattie (1901)
"Ovules and seeds not in a closed cavity, usually on the face of an open scale- leaf: stigmas none. Class GYMNOSPERMAE 1II Ovules and seeds contained in a ..."

3. Science by American Association for the Advancement of Science (1907)
"... it does not follow that they gave rise to the sub-class Gymnospermae, as now understood. On the contrary, it is shown to be probable that the ..."

4. A Laboratory Manual in Elementary Biology: An Inductive Study in Animal and by Emanuel Roth Boyer (1894)
"... it belongs to the class Gymnospermae, or "naked-seeded" plants, the seeds or ovules being borne in open ..."

5. A College Text-book of Botany: Being an Enlargement of the Author's by George Francis Atkinson (1905)
"closely allied with the Pinales, and that it represents an order Engler arranges the living gymnosperms somewhat class gymnospermae. Order i. ..."

6. A College Text-book of Botany: Being an Enlargement of the Author's by George Francis Atkinson (1905)
"... the order would be as follows: Plant Kingdom. Subkingdom, Spermatophyta. Group (not used in a definite sense). Class, Gymnospermae. Order, Finales. ..."

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