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1
Leaf Development and Canopy Growth
Plants with more than two leaves at a single node are said to have a 'whorled
phyllotaxy' (e.g. privet). While specific phyllotaxies may be characteristic of a
species, some variation may occur as a function of growth conditions or the
plant's age.
Bruce Marshall, Jeremy A. Roberts, 2000
2
Phyllotaxis: A Systemic Study in Plant Morphogenesis
Les phyllotaxies bijuguées. Mem. BuII. Soc. Bot. Fr. 108: 105-16. Loiseau, J. E. &
Messadi, M. (1957). Observations sur des phyllotaxies à angles oscillants. BuII.
Sci. Bourgogne 18: 61-4. Lovtrup, S. & Sydow, B. von (1974). D'Arcy Thompson's
...
3
Proceedings of the West Virginia Academy of Science
Plant Phyllotaxies and Other Related Growth Patterns as Determined by Studies
of 800 of Each Type of Tree Results Applications of the Fibonacci sequence and
the golden section to the phyllotaxies.— -In studying the phyllotaxies it was ...
West Virginia Academy of Science, 1971
Biology. Section. An. Application. of. the. Fibonacci. Sequence. and. the. Golden.
Section. to. Plant. Phyllotaxies. and. Other. Growth. Patterns. MARILYN
McMiLLEN Department of Biology, West Liberty State College West Liberty, West
Virginia ...
West Virginia Academy of Science, 1969
5
Fundamentals of phytomorphology
The much more complicated phyllotaxies of many Higher Sperma- tophyta, such
as Cycadales, Bennettitales and several orders of the Monocotyledons, must
have originated from these few simple, basic types. One of the possible ways is
the ...
6
Illustrated Guide to Trees and Shrubs: A Handbook of the ...
Thus we can always ascertain what the next higher phyllotaxy would be by
adding the numerators and denominators of the two preceding phyllotaxies; !/2. 1
/3, 2/5. 3/8, 6/i3i etc. These relations are obviously the result of geometrical space
...
Arthur Harmount Graves, 2013
7
Trees of New York State: Native and Naturalized
Spiral phyllotaxies are represented by the fractions '/2, Уз, 3/e, and so on, in
which the numerator represents the number of turns and the denominator the
number of leaves in a given cycle. Fig. 1 . Parts of a simple leaf ( see text ) Fig. 2.
Donald Joseph Leopold, 2003
8
Modern Methods of Teaching Biology
... on the stem may be compared; some are simple, others are compound; the
veins may form a network are either stalked or sessile; they may grow on the
stem so that there is a spiral phyllotaxies, or they may be opposite and decussate
.
How will you differentiate between alternate, opposite and whorled type of
phyllotaxies of leaf? 5. With the help of diagrams, differentiate between parallel
and reticulate venations. What is the difference between unicostate and
multicostate ...
10
Taxonomy of Angiosperms
In such cases leaf phyllotaxies can be determined by examining the leaf-scars.
Stipules should be looked for on young shoots, as they sap. are often deciduous.
Punctate pellucid glands is another distinctive. Plant Identification 126-135.
V. Singh, Dr. V. Singh & Dr. D.K. Jain, 1981
