Heterodera canadensis n. sp. (Nematoda: Heteroderidae) from Spike-Rush (Eleocharis acicularis (L.) R. & S.) in Quebec, Canada

Authors

  • Roland H. Mulvey

Abstract

Heterodera canadensis n. sp. is described and illustrated from the roots of spike-rush, Eleocharis acicularis (L.) R. & S., in Deschenes, Quebec. This new abullate species is related to Heterodera graminophila Golden and Birchfield, 1972, but differs significantly in cyst shape, cone top structures, body length of the second-stage larva (520-600 [mu]m, vs. 380-400 for H. graminophila) and tail length (110-120 [mu]m, vs. 57-67 for H. graminophila). A taxonomic key based on cyst and second-stage larva characters is provided for identification of the fifteen species in the Heterodera goettingiana group. Key Words: Nematode taxonomy, morphology.

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Published

1979-10-15

Issue

Vol. 11, No. 4 (October 1979)

Section

Articles

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