Now showing items 1-10 of 30
Anatomy of scapes, bracts, and leaves of Paepalanthus sect. Diphyomene (Eriocaulaceae, Poales) and its taxonomic implications
(Brittonia, 2013-06-26) [Artigo]
Paepalanthus sect. Diphyomene comprises 18 species with a convoluted taxonomic history. Aiming to correlate anatomical structures with the systematics of this group and its relatives, we studied the anatomy of scapes, ...
Four new species of Adenocalymma (Bignoniaceae) and a key to the species from southeastern Brazil
(Nordic Journal of Botany, 2013-05-01) [Artigo]
Four new species of Adenocalymma (Bignoniaceae, Bignonieae) from southeastern Brazil are described and illustrated: A. aurantiacum, characterized by dark orange and infundibuliform corolla; A. cinereum, characterized by ...
Two new species and one new synonym of Maytenus (Celastraceae) from Brazil
(Brittonia, 2014-12-01) [Artigo]
Two new species of Brazilian Maytenus are described and illustrated. Maytenus chapadensis is endemic to northern Goias state, where it occurs in the cerrado vegetation. The species has quadrangular, sub-winged young twigs, ...
Roots, leaves and scapes anatomy of species of Paepalanthus subgenus Platycaulon (Eriocaulaceae)
(Arquivos de Biologia E Tecnologia, 1996-01-01) [Artigo]
The anatomical features of roots, leaves and scapes of the subgenus Platycaulon, genus Paepalanthus (Eriocaulaceae) that grow in the Brasilian rupestrian fields of Serra do Cipo - MG - Brazil were studied. The following ...
Linnaeus's Plantae Surinamenses revisited
(Phytotaxa, 2012-01-16) [Artigo]
In 1775, Jacob Alm defended the Linnaean dissertation Plantae Surinamenses under the precidency of Carolus Linnaeus. In this account of Surinamese plants preserved in alcohol, given to Linnaeus by the King Gustavus III of ...
The taxonomy and morphological and anatomical differentiation of populations of Leiothrix crassifolia (Eriocaulaceae)
(Plant Systematics and Evolution, 1996-01-01) [Artigo]
The morphological and anatomical leaf and scape differentiation of Leiothrix crassifolia is analysed and classified into seven types (I, II, III, IV, V, VI, Vn). The species has a relatively wide distribution in the campo ...
Seedling morphology and development in the epiphytic cactus Epiphyllum phyllanthus (L.) Haw. (Cactaceae: Hylocereeae)
(Journal of the Torrey Botanical Society, 2013-04-01) [Artigo]
Seedling morphology is relevant in classification, taxonomy, and vegetation studies to understand plant life cycles, germination succession and requirements, and developmental progression. However, most morphological studies ...
Leaf Structure and Taxonomy of Petunia and Calibrachoa (Solanaceae)
(Brazilian Archives of Biology and Technology, 2002-03-01) [Artigo]
Foram estudados, sob o ponto de vista anatômico, os limbos foliares de dezesseis espécies de Calibrachoa Llav. & Lex. e de oito espécies de Petunia Juss. (Solanaceae). em Calibrachoa, a bainha que envolve os feixes vasculares ...
The collections of Lauraceae in the Herbarium of Henri Van Heurck (AWH)
(Plant Ecology And Evolution, 2013-01-01) [Artigo]
Background and aims - The collections of Lauraceae in the Van Heurck Herbarium (AWH), which is currently on permanent loan to BR, have remained unknown by most of the specialists and by the general public up until the ...
Proposal to conserve the name Spermacoce capitata Ruiz & Pav. against S. capitata P.J. Bergius (Rubiaceae)
(Taxon, 2011-06-01) [Artigo]