Náttúrufræðingurinn - 1993, Side 77

erfðaefni og myndunar nýrra arfgerða.
Mun færri plöntustofnar virðast hins
vegar viðhaldast án þeirra dreifingar-
möguleika sem fást með fræjum.
ÞAKKIR
Dr. Borgþór Magnússon og dr. Helgi
Björnsson lásu greinina yfir og komu með
margar gagnlegar ábendingar og tillögur.
Kann ég þeim bestu þakkir fyrir.
HEIMILDIR
Coe, M.J., D.L. Dilcher, J.O. Farlow,
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Crepet, W.L. 1983. The role of Insect Pol-
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Crepet, W.L. & E.M. Friis 1989. The ev-
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Friis, E.M. & W.L. Crepet 1989. Time of
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Plants. W.H. Freeman Co. 696 bls.
Harper, J.L. 1977. Population Biology of
Plants. Academic Press. 892 bls.
Hickey, M. & King, C. 1988. 100 Families
of Flowering Plants. 2. útg. Cambridge
University Press, Cambridge.
Janzen, D. 1986. Seeds as products. Oikos
46. 1-2.
Keng, H. 1983. Orders and Families of
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sity Press, Singapore.
Probert, R. 1992. Seeds of success. Nature
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persal syndromes according to the fossil
records. Seed Dispersal (ritstj. D.R.
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Control of Growth and Differentiation
in Plants. Pergamon Press. 303 bls.
Wing, S.L. & B.H. Tiffney 1989. Angio-
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Þóra Ellen Þórhallsdóttir 1993. Vistfræði
fræja. Náttúrufrœöingurinn 63. árg. (í
prentun).
PÓSTFANG HÖFUNDAR
Þóra Ellen Þórhallsdóttir
Líffrceðistofnun Háskólans
Grensásvegi 12
108 Reykjavík
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