Epidermal characteristics of toxic plants for cattle from the Salado river basin (Buenos Aires, Argentina)

by FREIRE S. E., ARAMBARRI A. M., BAYÓN N. D., SANCHO G., URTUBEY E., MONTI C., NOVOA M. C., COLARES M. N. (2005)

in Bol. Soc. Argent. Bot. 40 (3-4): 214-281

Fig. 7 . Stomatal types. a-f , anisocytic: a , Polygonum aviculare ; b , Raphanus sativus ; c , Sida rhombifolia ; d , Turnera sidoides subsp. pinnatifida ; e , Adesmia bicolor ; f , Nicotiana glauca ; g , polycytic: Plantago australis ; h , cyclocytic: Baccharis notosergila ; i , parallelocytic: Portulaca oleracea ; j, k , diacytic: j , Lamium amplexicaule ; k , Ammi majus ; l , hexacytic: Opuntia arechavaletae ; m-r , paracytic: m , Convolvulus arvensis ; n , Oxypetalum solanoides ; o , Galium richardianum ; p , Ricinus communis ; q , Senna corymbosa ; r, Vinca major . Scale bars: a-d, g, j-p, r = 50 μm; e, f, h, i, q = 100 μm.

Summary:

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 disintegrated. 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.

Caracteres epidérmicos de las plantas tóxicas para el ganado de la Depresión del Salado (Buenos Aires, Argentina).

==========

Excerpt

Stomata types were classified according Metcalfe & Chalk (1950, 1979) and Van Cotthem (1970), however, to establish the monocotyledons types, we followed Fryns-Claessens & Van Cotthem’s (1973) classification.

Read the full article: Research Gate