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Two New Species of Lauraceae from Espírito Santo, Brazil
(2019-12-31)
Two new species from the Brazilian Atlantic rainforest of Espírito Santo State, Licaria spiritusanctensis and Ocotea teresae, are described and illustrated. Their putative relationships within the respective genera are ...
Primary and secondary thickening in the stem of Cordyline fruticosa (Agavaceae)
(Academia Brasileira de Ciências, 2010)
The growth in thickness of monocotyledon stems can be either primary, or primary and secondary. Most of the authors consider this thickening as a result of the PTM (Primary Thickening Meristem) and the STM (Secondary ...
Diferenciação de espécies daninhas aquáticas pela análise multivariada de caracteres estruturais foliares
(2006-05-25)
Some aquatic plant species have caused great damage to hydroelectric power dams in Brazil, due to their great capacity of reproduction. Nineteen quantitative structural characters of leaf blades were used to differentiate ...
Leaf and scape anatomy of Leiothrix Ruhland (Eriocaulaceae) from a taxonomic and ecological perspective
(2020-01-01)
Leiothrix is endemic to South America with 47 species, only two of which do not occur in Brazil. Its distinguishing characters are habit, dialypetalous or gamopetalous corolla of the male flowers and presence or not of ...
Anatomical characterization of vegetative organs and scapes of Rondonanthus (Eriocaulaceae, Poales)
(2016-12-01)
Eriocaulaceae is a pantropical family and comprises ten genera. Rondonanthus is endemic to the north region of South America and comprises six species. The anatomy of roots, stem, leaves, and scapes were studied in four ...
Leaf and inflorescence peduncle anatomy: a contribution to the taxonomy of Rapateaceae
(Springer, 2014-08-01)
The anatomy of leaves and inflorescence peduncles was studied in species of Monotrema (4), Stegolepis (1) and Saxofridericia (1), aiming to contribute to the taxonomy of Rapateaceae. The form and structure of leaf blade ...
Collenchyma in Panicum maximum (Poaceae): localisation and possible role
(CSIRO Publishing, 2003-01-01)
This work relates the occurrence and distribution of collenchyma in Panicum maximum Jacq. P. maximum leaves were collected at different phases of development and sampled from both the base of the sheath and from the ...
Collenchyma in Panicum maximum (Poaceae): localisation and possible role
(CSIRO Publishing, 2003-01-01)
This work relates the occurrence and distribution of collenchyma in Panicum maximum Jacq. P. maximum leaves were collected at different phases of development and sampled from both the base of the sheath and from the ...
Anatomical changes induced by selection for plant architecture in maize (Zea mays L.)
(1998-12-01)
The original brachytic population 'Dent Single Cross Composite' (DSCC-br2br2) and a selection-derived sub-population with modified plant architecture (DSCC-br2br2-Lg3Lg3, selected for erect leaves), were evaluated for the ...
Anatomical changes induced by selection for plant architecture in maize (Zea mays L.)
(1998-12-01)
The original brachytic population 'Dent Single Cross Composite' (DSCC-br2br2) and a selection-derived sub-population with modified plant architecture (DSCC-br2br2-Lg3Lg3, selected for erect leaves), were evaluated for the ...