KSIĄŻKI POWIĄZANE ZE SŁOWEM «MULTICOSTATE»
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In this type of venation, if only one principal vein is present, it is called unicostate,
and if several principal veins are present, it is called multicostate. 3. Reticulate
When the pattern of the veins in the lamina of the leaf is like a network, e.g. dicots
.
Parallel venation : A — Pinnate (unicostate) parallel; B — Palmate divergent; C
— Palmate (multicostate) convergent. OPPOSITE SUPERPOSED c TRIPINNATE
L_ Fig. 63. Leaf tendrils : Fig. 57. Reticulate venation : A— Pinnate (unicostate) ...
(II) Multicostate or palmate : When there are more than one midribs; it is sub-
divided into two types : (i) Convergent : When the midribs converge at the apex
e.g., Cinnamomum tamala, Zigyphus jujuba. (ii) Divergent : When the midribs
diverge ...
(b) Multicostate - reticulate venation : In this type many veins of equal strength
arise from the end of the petiole. Each vein further branches to give rise to
veinlets that form the network. The veins may be convergent (meeting at the apex
) or ...
Mr. S. B. Gokhale, Dr. C. K. Kokate, Dr. D. S. Bidarkar, 2008
5
Class Book of Botany: Being an Introduction to the Study of ...
188. General summary of facts connected with the venation and conformation of
leaves : — t. Leaves are either netted-veined (reticulated), or parallel-veined. 2.
Leaves have either a single midrib (unicostate), or several ribs (multicostate) ;
and ...
John Hutton Balfour, 1852
6
Taxonomy, Evolution and Biostratigraphy of Conodonts from ...
Type species — Acodus oneotensis Furnish, 1938 Discussion — The apparatus
of Polycostatus consists of three morphotypes characterized by multicostate
cusps. The a (subround) elements have two lateral and one posterior costa, the c
...
Leanne J. Pyle, Christopher R. Barnes, 2002
7
Comprehensive Objective Biology
Most of the orchids are (a) Epiphytes D (fe) Parasites D (c) Saprophytes D (d)
Symbiotic. D 24. Venation in castor is (a) Reticulate D (fe) Reticulate unicostate D
(c) Reticulate multicostate D (d) Reticulate multicostate divergent. D 25. Flower is
a ...
8
Evolutionary Biology of Ostracoda: Its Fundamentals and ...
This multicostate group is almost certainly related to the Eocene multicostate
cytherettines of Europe and probably migrated from Europe during the early to
mid Eocene. Oligocene cytherettines are rare in N. America, but in Europe they
are ...
N. Ikeya, K. Ishizaki, T. Hanai, 2011
9
Textbook of Pharmacognosy and Phytochemistry
It is characteristic to monocotyledonous plants with few exceptions like
dioscoreaand sarsaparilla. Like reticulate venation, itmayalso beunicostate
parallel venationor multicostate parallelvenationas under: (a) Unicostate parallel
venation: ...
Biren Shah, Avinash Seth, 2012
10
Genetics: Classical to Modern
Venation (arrangement of principal veins and veinlets in the lamina) Parallel (
veins parallel) unicostate (only one principal vein) Examples-canna, banana.
multicostate (many principal veins) convergent Examples -grasses, wheat,
bamboo.
