Diphasiastrum × issleri
Appearance
Diphasiastrum × issleri | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Lycophytes |
Class: | Lycopodiopsida |
Order: | Lycopodiales |
Family: | Lycopodiaceae |
Genus: | Diphasiastrum |
Species: | D. × issleri
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Binomial name | |
Diphasiastrum × issleri | |
Synonyms[1] | |
Diphasiastrum × issleri, known as Issler's clubmoss, is a hybrid species of clubmoss known from northern Europe and a few historical collections in northern Maine.
Taxonomy
[edit]Diphasiastrum × issleri is a hybrid between D. alpinum and D. complanatum. Originally placed in a broadly circumscribed Lycopodium as a race of L. alpinum, it was transferred to the segregate genus Diphasiastrum and raised to species level by Holub in 1975.[2] In the past, it has been treated as a subspecies of D. complanatum. American material was once believed to be a hybrid between D. alpinum and D. tristachyum, but the offspring of those parents is properly known as D. × oellgaardii, which has not yet been found in North America.[3]
References
[edit]- ^ "Tropicos". Archived from the original on 2014-02-22. Retrieved 2015-01-31.
- ^ Holub, Josef Ludwig (1975). "Diphasiastrum, a new genus in Lycopodiaceae". Preslia. 14: 97–100.
- ^ Haines, Arthur (2003). The Families Huperziaceae and Lycopodiaceae of New England. Southwest Harbor, Maine: V. F. Thomas Co. pp. 52–53.