Cystopteris hybrid complex

Cystopteris hybrid complex: The fern genus Cystopteris is one that widely hybridizes internally.

North American Cystopteris Hybrids

The diploid parent species within the genus include:

C. bulbifera

C. "hemifragilis" (an undiscovered or extinct diploid)

C. protrusa

C. reevesiana

The hybrid species include:

C. fragilis (C. "hemifragilis" X C. reevesiana; allotetraploid)

C. laurentiana (C. bulbifera X C. fragilis; allohexaploid)

C. tennesseensis (C. bulbifera X C. protrusa; allotetraploid)

C. tenuis (C. "hemifragilis" X C. protrusa; allotetraploid)

C. utahensis (C. reevesiana X C. bulbifera; allotetraploid)

Non-species hybrids include:

Cystopteris Xillinoensis (C. bulbifera X C. tenuis; allotriploid)

Cystopteris Xwagneri (C. tennesseensis X C. tenuis; allo-allotetraploid)

Cystopteris fragilis X Cystopteris tenuis (allo-allotetraploid)

References

Lellinger, David B. A Field Manual of the Ferns & Fern-Allies of the United States & Canada. Smithsonian Institution, Washington, DC. 1985.

Categories:
Fern stubs
Cystopteris
Hybrids
Ferns of the United States

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