The intergeneric hybrid grass “Poa labradorica”

The new nothogenus × Dupoa (Dupontia × Poa ) is published. Nomenclature of the only known nothospecies, × Dupoa labradorica (= Poa labradorica ), is discussed. Morphology and synecology of this poorly known arctic and subarctic grass are described and a key to related taxa is given. Its morphology a...

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Bibliographic Details
Published in:Nordic Journal of Botany
Main Authors: Cayouette, Jacques, Darbyshire, Stephen J.
Format: Article in Journal/Newspaper
Language:English
Published: Wiley 1993
Subjects:
Plant Science
Ecology, Evolution, Behavior and Systematics
Arctic
Dupontia fisheri
Subarctic
Online Access:http://dx.doi.org/10.1111/j.1756-1051.1993.tb00106.x
https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1756-1051.1993.tb00106.x
https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1756-1051.1993.tb00106.x
Description
Summary:The new nothogenus × Dupoa (Dupontia × Poa ) is published. Nomenclature of the only known nothospecies, × Dupoa labradorica (= Poa labradorica ), is discussed. Morphology and synecology of this poorly known arctic and subarctic grass are described and a key to related taxa is given. Its morphology and ecology overlap with the putative parental taxa, Poa eminens and Dupontia fisheri ssp. psilosantha . Establishment and persistence of this sterile hybrid are related primarily to geological processes associated with glacio‐eustatic rebound and seasonal ice action affecting its seashore habitats.

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