Diphasiastrum × issleri
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.
| Diphasiastrum × issleri | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Lycophytes |
| Class: | Lycopodiopsida |
| Order: | Lycopodiales |
| Family: | Lycopodiaceae |
| Genus: | Diphasiastrum |
| Species: | D. × issleri |
| Binomial name | |
| Diphasiastrum × issleri | |
| Synonyms[1] | |
| |
Taxonomy
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]
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References
- Tropicos
- 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.
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