Výsledky vyhledávání - "John K. Morton"

Chromosome Number Determinations in Solidago (Asteraceae: Astereae)

Autor: John C. Semple, Joan Venn, John K. Morton

Publikováno v: Rhodora. 119:341-348

Chromosome numbers are reported for 133 individuals of 41 taxa and cultivars and four hybrids in the goldenrod genus Solidago from Canada, the United States and botanical gardens in Europe. With the exception of first reports, all of the reports conf

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6fe1285765a8070d83090c2d567351dd
https://doi.org/10.3119/17-03

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CHROMOSOME NUMBER DETERMINATIONS IN SOLIDAGO GIGANTEA (ASTERACEAE: ASTEREAE)

Autor: John C. Semple, John K. Morton, Joan Venn

Publikováno v: Rhodora. 121:347

Chromosome numbers are reported for 154 individuals of Solidago gigantea from Canada, England, France, and the United States.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::16ceec48a424437a082e43e4990b12fd
https://doi.org/10.3119/0035-4902-121.988.347

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Two New Species of Acalypha (Euphorbiaceae) from Tropical Africa, and a Review of Some Robyns Names for Cupricolous Plants From the Democratic Republic of the Congo

Autor: John K. Morton, Geoffrey A. Levin, Elmar Robbrecht

Publikováno v: Systematic botany

Two new African species of Acalypha (Euphorbiaceae subfamily Acalyphoideae) are described and illustrated. Acalypha guineensis from Guinea and Sierra Leone is most similar to A. manniana, from which it differs by its smaller size, shorter peduncles o

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https://doi.org/10.1600/036364407782250599

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Amplified Fragment Length Polymorphism Analysis of Genetic Relationships among the Serpentine Barrens Endemic Cerastium velutinum Rafinesque var. villosissimum Pennell (Caryophyllaceae) and Closely Related Cerastium Species

Autor: R. E. Latham, Giuseppina Colonna Romano, John K. Morton, J. K. Morton, Gabriela Romano

Publikováno v: Journal of the Torrey Botanical Society. 130:218

GUSTAFSON, D. J. (Department of Biology, University of Pennsylvania, Philadelphia, PA 19104), G. ROMANO (Morphotek, Inc., 210 Welsh Pool Rd., Exton, PA 19341), R. E. LATHAM (Continental Conservation, P.O. Box 57, Rose Valley, PA 19086), AND J. K. MOR

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https://doi.org/10.2307/3557556

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Biogeography of island floras in the Great Lakes. I. Species richness and composition in relation to gull nesting activities

Autor: John K. Morton, Joan M. Venn, E. H. Hogg

Publikováno v: Canadian Journal of Botany. 67:961-969

Species–area relations of vascular plants and the effect of nesting colonies of gulls on plant species composition were investigated for 77 islands in Georgian Bay and Lake Huron in the Great Lakes region of Canada. The percentage of plant species

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4a372da86c714bdec617372f567fdae5
https://doi.org/10.1139/b89-128

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The Lepidagathis hamiltoniana-collina complex (Acanthaceae) in Africa and Asia

Autor: John K. Morton

Publikováno v: Botanical Journal of the Linnean Society. 96:333-344

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fdb6fcc7132cc8a8523ec2f5007b3c53
https://doi.org/10.1111/j.1095-8339.1988.tb00688.x

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A biosystematic study of the Solidago canadensis (Compositae) complex. I. The Ontario populations

Autor: Mentor R. Melville, John K. Morton

Publikováno v: Canadian Journal of Botany. 60:976-997

Populations from 138 locations in Ontario were sampled and found to contain three levels of polyploidy: diploid, tetraploid, andhexaploid. Five taxa are recognized: Solidago canadensis Linn. var. canadensis (2n = 18) and var. hargeri Fem. (2n = 18),

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https://doi.org/10.1139/b82-123

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Chromosome numbers in Compositae from Canada and the U.S.A

Autor: John K. Morton

Publikováno v: Botanical Journal of the Linnean Society. 82:357-368

Reports on 267 chromosomes counts are presented from material of known wild origin referable to 128 taxa of Compositae native to North America, or aliens growing there in a wild state.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6ae2db0cd391ae5bea647c07ed33ed8
https://doi.org/10.1111/j.1095-8339.1981.tb00967.x

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