Publication Abstracts

Heusser and Peteet 1988

Heusser, C.J., and D.M. Peteet, 1988: Spores of Lycopodium and Selaginella of North Pacific America. Can. J. Botany, 66, 508-525, doi:10.1139/b88-074.

Morphological descriptions and keys apply to spores of eight species of Lycopodium (L. alpinum, L. annotinum, L. clavatum, L. complanatum, L. inundatum, L. obscurum, L. selago, and L. sitchense) and seven species of Selaginella (S. densa, S. douglasii, S. oregana, S. selaginoides, S. sibirica, S. wallacei, and S. watsonii). Spores are radiosymmetric, heteropolar, tetrahedral, and trilete. The most workable characters of use in identification of spores of Lycopodium are type sculpture (mostly reticulate but also foveolate and rugulate) and the presence, continuity, and absence of sculpture on proximal and distal faces. Spores of Selaginella are distinguished by the presence or absence of a perine, perine thickness, microsculpture, and appearance of cristae. Modern, Holocene, and Pleistocene distribution records of L. selago and S. selaginoides are reviewed for the purpose of developing the Quaternary history of Lycopodium and Selaginella in North Pacific America. They illustrate the importance of refugia in Washington, the Queen Charlotte Islands, and Japan — eastern Asia, which were noteworthy distribution centers during and following Wisconsin glaciation.

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BibTeX Citation

  author={Heusser, C. J. and Peteet, D. M.},
  title={Spores of Lycopodium and Selaginella of North Pacific America},
  journal={Canadian Journal of Botany},

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RIS Citation

ID  - he06200v
AU  - Heusser, C. J.
AU  - Peteet, D. M.
PY  - 1988
TI  - Spores of Lycopodium and Selaginella of North Pacific America
JA  - Can. J. Botany
JO  - Canadian Journal of Botany
VL  - 66
SP  - 508
EP  - 525
DO  - 10.1139/b88-074
ER  -

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