Vegetal Anatomy

In the study of the epidermis, in sight frontal, they had used paradrmicos cuts of leves or its isolation having used itself it mixture of Jeffrey (acid nitric and acid chromic 10% in equal parts (Johansen, 1940) (UFLA, 2008). The counting of number of estmatos was carried through according to technique of Labouriau, Oliveira and Salgado – Labouriau (1961), in three regions: base, way and apex of the leaf. For the histoqumicos tests, cuts executed the free hand, with aid of blade to shave, and submitted the specific reagents had been used. The identification of the lignina was made with the use of floroglucina added with drops of acid intent clordrico (Johansen, 1940) (UFLA, 2008). For the study of the nervao, the leves had been diafanizadas in watery solution of hidrxido of sodium 5% (Fellipe and Alencastro, 1966), clarificadas in hipoclorito of sodium 50% (Handro, 1964) and coradas with hidroalcolica solution of safranina 1% or with blue solution of of aniline 1% acidified (Handro, 1964; Fellipe and Alencastro, 1966; Blacksmith, 1968). The description of the general characters of the leaf and types of ribbings had been based on Hickey (1973). The drawings and projects of the anatmicos cuts had been carried through with the aid of connected clear chamber in optic microscope Olympus CBB, the Laboratory of Vegetal Anatomy of the UFLA (UFLA, 2008). 2.4.2- Morphologic description Gomphrena celosioides Mart.

Perennial grass. Caules decumbent and/or ascending, with up to 50,0 cm of height, pubescentes. Cylindrical roots, suberoso cortex, furrowed. Leves shortly pecioladas, Gommphrena celosioides Mart. NAMES VERNACULARES: Perpetual, always-alive, perpetual-brave. FENOLOGIA: it blossoms of October until May. OCCURRENCE CULTURES: inside of the State of Minas Gerais, the species, objecto of study, already were colectada in cultures of cotton, maize, sorgo, wheat, soy, coffee, tobacco, cassava, beans, orchards, pastures, irrigation channels and draining and as also ruderal (in lands and antrpicas areas) (UFLA, 2008).

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