Definition of Sphenopsida

1. Noun. Horsetails and related forms.

Exact synonyms: Class Equisetatae, Class Sphenopsida, Equisetatae
Generic synonyms: Class
Group relationships: Division Pteridophyta, Pteridophyta
Member holonyms: Equisetales, Order Equisetales

Lexicographical Neighbors of Sphenopsida

Sphaerocarpaceae
Sphaerocarpales
Sphaerocarpos
Sphaerocarpus
Sphagnales
Sphecidae
Sphecius
Sphecius speciosis
Sphecoidea
Sphecotheres
Spheniscidae
Sphenisciformes
Spheniscus
Spheniscus demersus
Sphenodon punctatum
Sphenopsida
Sphingian
Sphingidae
Sphinx
Sphynx
Sphyraena
Sphyraena barracuda
Sphyraenidae
Sphyrapicus
Sphyrapicus varius
Sphyrapicus varius ruber
Sphyrna
Sphyrna tiburo
Sphyrna tudes
Sphyrna zygaena

Literary usage of Sphenopsida

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

1. The Encyclopedia Americana: A Library of Universal Knowledge (1919)
"Taxonomically it corresponds rather closely with the Articulate of Lignier and the sphenopsida of Scott. As known at the present time it consists of two ..."

2. The American Botanist edited by Willard Nelson Clute (1921)
"This fact is just as cogent if we accept Scott's sphenopsida as co-ordinate with Lycopsida and Pteropsida. The logical separation therefore occurs at this ..."

3. Contributions by Brooklyn Botanic Garden (1917)
"... differ more from the horsetails than do the groups of the Pteropsida among themselves, Scott proposes three groups: Lycopsida, sphenopsida (horsetails ..."

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