Results 271 to 280 of about 2,703,564 (307)

Leaf architecture of Hamelieae (Rubiaceae)

Feddes Repertorium, 2007
AbstractThe tribe Hamelieae sensu Robbrecht comprises seven genera, and is traditionally placed in subfamily Rubioideae. Molecular data, however, places Hamelieae within Cinchonoideae. In this study, leaf architecture characters were examined in order to provide further evidence for the circumscription of Hamelieae and discuss its placement in the ...
D. Martínez‐Cabrera, T. Terrazas, H. Ochoterena   +2 more
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Systematics and Leaf Architecture of the Gunneraceae

The Botanical Review, 2005
I. Abstract Cladistic and phenetic analyses of leaf and other morphological characters of Gunnera strongly support monophyly of the genus, with the Saxifragaceae s.str. as the closest sister group. This morphologically based phylogeny provides a more coherent understanding of the evolutionary history of Gunnera than do recent phylogenetic hypotheses ...
Dorian Q. Fuller, Leo J. Hickey
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Leaf architectural studies in the brassicaceae

The Botanical Magazine Tokyo, 1983
The leaf architecture has been studied in 19 genera and 35 species of the Brassicaceae. The major venation pattern is pinnate craspedodromous with the exception ofAlyssum maritimum, Iberis amara, I. umbellata andMalcolmia maritima where it is pinnate-festooned brochidodromous.
Nadella V. Rao, Jayantilal A. Inamdar
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Leaf architecture of some acanthaceae

The Botanical Magazine Tokyo, 1984
Leaf architectural pattern has been studied in 27 genera and 35 species of the Acanthaceae. The major venation pattern conforms to pinnate camptodromous with eucamptodromous or festooned brochidodromous secondaries, pinnate craspedodromous inAcanthus ilicifolius and acrodromous inLepidagathis trinervis. Intersecondary veins are common.
Gopal S. Chaudhari, Jayantilal A. Inamdar   +1 more
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Leaf life span and the leaf economic spectrum in the context of whole plant architecture [PDF]

Journal of Ecology, 2014
SummaryThe leaf economics spectrum (LES) has been an organizing framework of plant functional ecology for the past decade. TheLESdescribes a set of trade‐offs among traits related to plant carbon balance. Species with a long leaf life span (LLS) invest additional material for leaf protection and structural support and consequently tend to have a lower ...
Lawren Sack, Erika J. Edwards, David S Chatelet   +2 more
exaly   +2 more sources

A modified terminology for angiosperm leaf architecture

Journal of the Royal Society of New Zealand, 1991
Abstract A modified terminology for describing leaf architecture is presented, which incorporates lamina development and gives greater emphasis to the patterns formed by groups of venation elements than to their size. Leaf architecture is described using a hierarchy of venation “elements”, which are grouped into “patterns”, which are ...
Mike Pole
exaly   +2 more sources

Leaf architecture in Terminalia species

Indian Journal of Forestry, 2001
The present investigation on leaf architectural studies of Terminalia species reveals the presence of pinnate camptodromous (brochidodromous) type. Number of secondary veins found to be varies within the species. Intersecondary veins are of composite type except in T. bellirica where it was simple.
Kuntala Barua, Jasbir Singh
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THE TERMINOLOGY OF LEAF ARCHITECTURE

TAXON, 1976
SummaryA comparative study of leaf architecture throughout the Angiosperms has been made and six classes of venation patterns are recognised. The terms employed are defined and arranged in a systematic order for convenience of reference. Some new terms have been introduced where greater precision was needed and for little known venation patterns.
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Studies on the Leaf Architecture of the Ranunculaceae

Flora, 1981
Abstract The leaf architecture is studied in fourteen genera and fifty two species of the Ranunculaceae. The species-wise qualitative and quantitative leaf features are charted. The major venation pattern conforms to actinodromous, craspedodromous, semicraspedodromous, hypodromous and acrodromous types.
Sr. Avita, N.V. Rao, J.A. Inamdar
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Leaf-spine architecture for OTN switching

2017 International Conference on Computing, Networking and Communications (ICNC), 2017
The application of a leaf-spine switching architecture is considered for Layer 1 circuit switching, such as with OTN ODU-based switching. Simple relationships are derived for the achievable leaf-spine switch capacity and scalability, given the number and capacity of individual leaf and spine switch elements, and bandwidth for leaf-spine interlinks ...
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