-
Gravitational and
Space Biology Bulletin. 13 (2): 85–93. PMID 11543285.
Norstog KJ (1986). "The
blepharoplast of
Zamia pumila L.".
Botanical Gazette. 147...
- 1093/aob/mcq007. PMC 2850791. PMID 20142263. Graham, Rita M.; Lee,
David W.;
Norstog, Knut (1993). "Physical and
Ultrastructural Basis of Blue Leaf Iridescence...
- 1517092112. ISSN 0027-8424. PMC 4711867. PMID 26621730.
Stevenson DW,
Norstog LJ,
Fawcett PK (1998). "Pollination
Biology Of Cycads". In
Owens SJ, Rudall...
-
November 2021. "Appendices | CITES". cites.org.
Retrieved 2024-01-17.
Norstog, Knut J., and
Trevor J. Nicholls. The
Biology of the Cycads. New York :...
- Erotylidae)".
Florida Entomologist. 106 (3): 199–202. doi:10.1653/024.106.0309.
Norstog, Knut J.; Fawcett,
Priscilla K. S.; Vovides,
Andre P. (1992). "Beetle pollination...
-
locations in Colombia,
Costa Rica, Guatemala, and Nicaragua. In 1980, K. J.
Norstog reported that Z.
skinneri plants from
central Atlantic Costa Rica, called...
-
genus of the family. The
genus is
commonly divided into two
groups by
Norstog &
Nichols of
distinct morphology. The
first includes D. mejiae, D. rzedowskii...
-
importance of this
distinction has been
quoted by
famous cycadologist Knut
Norstog, in
comparing the
analysis of
cycad history to the
interpretation of the...
- 31 (5): 367–373. doi:10.2307/1308401. ISSN 0006-3568. JSTOR 1308401.
Norstog, Knut J.; Gifford,
Ernest M.; Stevenson,
Dennis Wm (2004). "Comparative...
- 115–122. doi:10.5962/p.358950. S2CID 259715748 – via
Biodiversity Library.
Norstog, Knut; Nicholls,
Trevor J. (15 May 2019). The
Biology of the Cycads. Cornell...
