How To Use gymnosperm In A Sentence
- This formation of germinal vesicles and prothallium seems very different from the formation of archegonia and prothallium in Selaginella, for instance; but the link which connects the two is in the gymnosperms, where distinct archegonia in a prothallium are formed. Scientific American Supplement, No. 531, March 6, 1886
- The gymnosperms are characterized by large genomes and relatively low chromosome numbers; polyploidy is rare.
- Shady conditions at ground level favor woody climbers that include strangler figs (Ficus spp.) and the cablelike Gnetum, an unusual climbing gymnosperm. Kayah-Karen montane rain forests
- Early gymnosperms and angiosperms were wind-pollinated. False Fear? - The Panda's Thumb
- The famous relict gymnosperm Welwitschia mirabilis is also found throughout the ecoregion, and it is often the most conspicuous feature of the vegetation, scattered about the arid plains at intervals of 50 to 100 m. Kaokoveld desert
- From that time onwards, so long as these Gymnosperms were, as was usual, reckoned as dicotyledonous flowering plants, the term Angiosperm was used antithetically by botanical writers, but with varying limitation, as a group-name for other dicotyledonous plants. Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1
- The relict gymnosperm Welwitschia mirabilis, which represents the sole surviving member of its family, is found throughout the ecoregion. Kaokoveld desert
- The checklist is divided into the following categories: ferns, gymnosperms, dicots, and monocots.
- The development of the microsporangia and the contained spores (pollen-grains) is closely comparable with that of the microsporangia in Gymnosperms or heterosporous ferns. Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1
- Many paleobotanists believe that the earliest seed plants evolved from heterosporous Middle Devonian plants like the progymnosperms.