The stomatal distribution pattern as an important taxonomic tool.

 

Distributional patterns and taxonomic importance of foliar stomata.

by Rajagopal T. (1979)

in Indian Journal of Botany: Vol. 2, 63–69 –

https://eurekamag.com/research/005/181/005181770.php

Abstract

Based on the presence or absence of stomata on the leaves, a new category, astomatic, is recognized besides the already known epistomatic, hypostomatic and amphistomatic categories.

Distribution patterns of foliar stomata embracing their orientation and dispersion and in relation to the costal cells in a given leaf surface are distinguished into 8 groups [I-VIII] consisting of 11 types, of which the group VII in dicotyledons and groups I to III and V in monocotyledons are predominant. The group VII, B-1, can be used as indicator of adaxial surface in dicotyledonous leaves.

The stomatal distribution pattern along with other epidermal characters can be used as an important taxonomic tool.

 

New ontogenetic classification of stomatal types

 

A new ontogenetic classification of stomatal types.

by Stevens R. A, Martin E. S. (1978)

School of Environmental Sciences, Plymouth Polytechnic

in Bot J Linn Soc, 77:53-64. – DOI: 10.1111/j.1095-8339.1978.tb01372.x – 

http://onlinelibrary.wiley.com/doi/10.1111/j.1095-8339.1978.tb01372.x/abstract

Abstract

A new ontogenetic classification of stomatal types is proposed which replaces the three ontogenetic types of Pant (1965) with seven new ones.

The new classification clearly differentiates between the developmental involvement of the subsidiary cells and the purely structural relationship of the neighbouring cells. All known, and hypothetical, ontogenetic pathways of stomatal development can he incorporated into the new classification.

An, hitherto unknown, ontogenetic type which incorporates neighbouring, mesogene subsidiary, and perigene subsidiary cell elements into the stomatal complex is described from the fern, Polypodium vulgare L.

Ontogenetic classification of stomatal types

 

A new ontogenetic classification of stomatal types

by Stevens R. A., Martin E. S. (1978)

Plymouth Polytechnic, Drake Circus, Plymouth

in Bot. J. Linn. Soc. 77: 53-64. – DOI: 10.1111/j.1095-8339.1978.tb01372.x – 

http://onlinelibrary.wiley.com/doi/10.1111/j.1095-8339.1978.tb01372.x/abstract

Abstract

A new ontogenetic classification of stomatal types is proposed which replaces the three ontogenetic types of Pant (1965) with seven new ones.

The new classification clearly differentiates between the developmental involvement of the subsidiary cells and the purely structural relationship of the neighbouring cells. All known, and hypothetical, ontogenetic pathways of stomatal development can he incorporated into the new classification.

An, hitherto unknown, ontogenetic type which incorporates neighbouring, mesogene subsidiary, and perigene subsidiary cell elements into the stomatal complex is described from the fern, Polypodium vulgare L.

Akeem Babalola KADIRI sent a list

 

Akeem_Kadiri2

We received an interesting message from A. B. KADIRI, University of Lagos, Nigeria.  It contained a valuable list of publications on stomata, leaf epidermis micro-morphology, taxonomy, phyto-anatomy, ethnobotanical research, pharmacognosy, etc.

KADIRI mentioned also a textbook and some talks at conferences.

Our sincere thanks go to Akeem for his contribution to our Plant Stomata Encyclopedia.

You can find this list at:

https://docs.google.com/document/d/1scRyM82COYGXqh-SIM8yUGXitTxTpASzlVc5l_lxQ3w/edit?usp=sharing

You can also clicklist-of-publications-sent-by-kadiri-a-b

Epicuticular waxes in Centrosperms

 

Micromorphology of epicuticular waxes in Centrosperms.

by Engel T., Barthlott W. (1988)

Thomas Engel

Wilhelm Barthlott, University of Bonn wilhelm_barthlott3

 

–  Plant Systematics and Evolution 161, no.1-2: 71-85. – DOI: 10.1007/BF00936014 –

https://www.researchgate.net/publication/226100490_Micromorphology_of_epicuticular_waxes_in_Centrosperms

Abstract
Epidermal surfaces of about 500 species from some 250 genera of centrospermous families plus some possibly related families were examined by scanning electron microscopy.
The micromorphology of their epicuticular waxes is described under taxonomic aspects. In general, Centrosperms tend to develop wax platelets on their cuticle. Shape and size of these platelets are highly diverse, but specific for some taxa. Particular forms of rodlets and thick wax plates occur only in few taxa.
The systematic and taxonomic applicability of wax micromorphology is limited, but tentatively family characterizations are given.
The data presented provide additional information concerning the familiar and suprafamiliar classification of Caryophyllales.

 

Stomata in toxic plants

 

Epidermal characteristics of toxic plants for cattle from the Salado River basin (Buenos Aires, Argentina) Caracteres epidérmicos de las plantas tóxicas para el ganado de la Depresión del Salado (Buenos Aires, Argentina)

by Freire S. E., Arambarri A. M., Bayón N. D., Sancho G., Urtubey E., Monti C., María C. Novoa M. C., Colares M. N. (2005)

Susana E. FreireSusana_Freire4

Ana M. Arambarri,

Néstor D. Bayón,

Gisela Sancho

in Bol. Soc. Argent. Bot. v.40 n.3-4 Córdoba ago./dic. 2005 – 

http://www.oalib.com/paper/2935980

Abstract:

One hundred and eighty species belonging to 41 families inhabiting the Salado River Basin of the province of Buenos Aires (Argentina) were previously reported to be toxic for cattle.

The purpose of this study was to provide a tool to distinguish the taxa when the plant material is desintegrated. In this way, an approach to the identification of these taxa through leaf epidermal features (anticlinal epidermal cell wall patterns, cuticular ornamentation, stomata, and hair types) is performed.

A key to the 180 species as well as illustrations of diagnostic characters are given.