Lexic.us

¹ Source: wiktionary.com

Definition of Gymnosperms

1. gymnosperm [n] - See also: gymnosperm

Medical Definition of Gymnosperms

1. Gymnosperms are a group of vascular plants whose seeds are not enclosed by a ripened ovary (fruit). Gymnosperms are distinguished from the other major group of seed plants, the angiosperms, whose seeds are surrounded by an ovary wall. The seeds of many gymnosperms (literally, "naked seed") are borne in cones and are not visible. Taxonomists now recognise four distinct divisions of extant gymnospermous plants (coniferophyta, cycadophyta, ginkgophyta, and gnetophyta). (12 Dec 1998)

Lexicographical Neighbors of Gymnosperms

Literary usage of Gymnosperms

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

1. Morphology of Spermatophytes by John Merle Coulter, Charles Joseph Chamberlain (1901)
"I. THE VEGETATIVE ORGANS THE STEM All known gymnosperms are woody plants, ... The habitats of gymnosperms to-day indicate that they either are not at home ..."

2. Botany, with Agricultural Applications by John Nathan Martin (1920)
"The Spermatophytes are divided into two groups, — the gymnosperms and Angiosperms. As the names suggest, the gymnosperms bear their seeds exposed while ..."

3. Morphology of Spermatophytes by John Merle Coulter, Charles Joseph Chamberlain (1901)
"I. THE VEGETATIVE ORGANS THE STEM All known gymnosperms are woody plants, ... The habitats of gymnosperms to-day indicate that they either are not at home ..."

4. Plant Life and Plant Uses: An Elementary Textbook, a Foundation for the by John Gaylord Coulter (1913)
"gymnosperms have no ovary. gymnosperms evolved before angiosperms, ... Pines and other trees like them are the gymnosperms with which you are familiar. ..."

5. Morphology of Angiosperms: (Morphology of Spermatophytes. Part II) by John Merle Coulter, Charles Joseph Chamberlain (1903)
"In fact, Pteridophytes and gymnosperms together form a much more natural group than do gymnosperms and Angiosperms; and this fact should be emphasized by ..."

6. Strasburger's Text-book of Botany by Eduard Strasburger, Hans Fitting (1921)
"gymnosperms or forms resembling them are found along with what appear to be intermediate forms between the gymnosperms and the Pteridophyta in the ..."

7. A University Text-book of Botany by Douglas Houghton Campbell (1907)
"Affinities of gymnosperms The origin of the gymnosperms and their ... .(This is the most recent work on gymnosperms, and contains a full bibliography.) i97. ..."

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