CO OZNACZA SŁOWO DICTYOSTELE
Definicja słowa dictyostele w słowniku
Definicja dictyostele w słowniku jest formą steli znalezionej w niektórych paprotkach, zawierającą tyle luk, że jest jak sieć odrębnych pasm.
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dictyostele oraz krótkie ich fragmenty w celu przedstawienia kontekstu użycia w literaturze.
175 ; FrauEvaSchumann.F/W-tf, 1915,Bd. 108, p. 211). The adult axis is traversed
by a three- angled dictyostele with a complex medullary . system. Thishas lately
been brought into relation with a like structure in the larger Pteroid stems by the ...
2
Text Book Of Botany Diversity Of Microbes And Cryptogams
A dictyostele has many scattered vascular strands, each of these strands is
known as » True and false statements I. Siphonostele is a non-medullated stele.
2 A siphonostele with phloem external as well as internal to xylem is ectophloic. 3
.
3
The Conservation of Artifacts Made from Plant Materials
Dictyostele. The vascular cylinder consists of a network of separate strands (
vascular bundles) which may appear circular in cross section (Figure 1.4d) or
scattered throughout the ground tissue (Figure 1.4e). The circular dictyostele is
found in ...
Mary-Lou E. Florian, Dale Paul Kronkright, Ruth E. Norton,
1991
Siphonosteles with overlapping gaps are dictyosteles, and the intervening
portion of the vascular tissue lateral to two overlapping gaps is a meristele. When
there are numerous meristeles, the dictyostele looks like a cylindrical msshwork.
5
An Introduction to Pteridophyta: Diversity, Development, ...
7.2 J) a solenostele gets dissected and results in a dictyostele. A dictyostele in
transection appears as a scattered series of bundles; each bundle is a meristele (
Fig. 7.2 F) consisting of a central strip of xylem surrounded by phloem followed by
...
(II) Dictyostele : A siphonostele with overlapping leaf gaps is called dictyostele (
Brebner, 1902). Here each unit is called meristele. It is seen in Dryopteris,
Adiantum etc. In some species of Selaginella more than one steles may be
formed.
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A Text Book Ofbotany: Plant Anatomy and Economic Botany
presence of large number of overlapping leaf gaps, so that the whole stele is
dissected into a net-like structure. In cross section, dictyostele shows separate
vascular strands, each called meristele. Each meristele is a miniature protostele
which ...
Pandey S N, S. N. Pandey, Ajanta Chadha,
1993
8
Plant Anatomy and Embryology
presence of large number of overlapping leaf gaps, so that the whole stele is
dissected into a net-like structure. In cross section, dictyostele shows separate
vascular strands, each called meristele. Each meristele is a miniature protostele
which ...
S. N. Pandey, Ajanta Chadha,
1996
9
Botany For Degree Pteridophyta
Like the dictyostele the vascular strands in the eustele are also interconnected. In
some cases the vascular strands are scattered and such a stele is called
atactostele (Nast, 1944 ;Esan 1953). It is found in the monocotyledons (Fig. 8.2).
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The Ferns (Filicales): Volume 3, The Leptosporangiate Ferns: ...
The adult axis is traversed by a three- angled dictyostele with a complex
medullary system. This has lately been brought into relation with a like structure
in the larger Pteroid stems by the observations of Prof. J. McL. Thompson, who
has ...