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Journal ArticleDOI

Anatomy of the Dicotyledons.

About: This article is published in American Midland Naturalist.The article was published on 1950-11-01. It has received 2511 citations till now.
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Journal ArticleDOI
TL;DR: The anatomical data increase the M. elata and M. huberi synonymisation and show the importance of the anatomy as a complementary tool to the taxonomy based on external morphology.
Abstract: Aiming to complement the group’s taxonomy, the objective of this work is to describe and characterise, searching for morpho-anatomical patterns, the leaf anatomy of the Manilkara species occurring in the northeast region of Brazil. The leaves of all Manilkara species were analysed, using herbaria specimens and collections made in the field by the authors. The characterisation of the leaf blades was performed according to the usual protocols in vegetal anatomy. As diagnosed by anatomical characters, the Manilkara Adans. genus presents petioles with a thick cuticle, a uniseriate epidermis, a sclerenchymatous sheath involving the vascular bundle, and laticifers on the cortical and medullar regions. The anatomical data increase the M. elata and M. huberi synonymisation and show the importance of the anatomy as a complementary tool to the taxonomy based on external morphology.

21 citations

Journal ArticleDOI
TL;DR: A taxonomic revision of the genus Callicarpa L. (Lamiaceae) in the Philippines is presented, and twenty seven taxa are recognised, and thirteen names newly reduced to synonymy are introduced.
Abstract: A taxonomic revision of the genus Callicarpa L. (Lamiaceae) in the Philippines is presented here. Twenty seven taxa are recognised, and thirteen names newly reduced to synonymy. A key to all species is included, as well as distribution maps and a preliminary conservation status for each species. This account forms part of a treatment of Callicarpa for the Flora Malesiana project.

21 citations

Journal ArticleDOI
TL;DR: Druses in the vacuoles of palisade cells occur below the thin pit field regions in the wall interface, suggesting an interesting physical relationship that could provide a pathway for light waves, filtered through the multiple hypodermis.

21 citations

01 Jan 1976
TL;DR: Wood anatomy indicates that the genera Archytaea, Ploiarium, Bonnetia, Neblinaria, Neotatea, Caraipa, Haploclathra, Mahurea, Marila, Kielmeyera and Asteropeia form a homogeneous group, which differs markedly from the Theaceae, as is concluded from comparisons with representatives of all groups of that family.
Abstract: A description of the xylem anatomy of the genera Archytaea, Ploiarium, Bonnetia, Neblinaria, Neotatea, Caraipa, Haploclathra, Mahurea, Marila, Kielmeyera, and Asteropeia is given. All these genera except Asteropeia, were included in the family of the Bonnetiaceae by Maguire (1972). He considered the position of Asteropeia to be a doubtful one. Wood anatomy indicates that the genera Archytaea, Ploiarium, Bonnetia, Neblinaria, and Neotatea form a homogeneous group, which differs markedly from the Theaceae, as is concluded from comparisons with representatives of all groups of that family. The taxonomic position of the genera Caraipa, Haploclathra, Mahurea, Marila, and Kielmeyera, formerly referred to the Guttiferae, is discussed. The genera Caraipa and Haploclathra are wood anatomically similar to the other genera of the Bonnetiaceae; the genera Mahurea and Marila less so. Kielmeyera fits wood anatomically better in the Guttiferae than in the Bonnetiaceae. These conclusions are based on comparisons with all tribes of the Guttiferae. Asteropeia does not fit in with the Theaceae or Bonnetiaceae, and its wood anatomy supports the family status for this genus. Poeciloneuron is wood anatomically similar to the Bonnetiaceae. The taxonomic position of Pelliciera and of the Tetrameristaceae, in Melchior’s concept (1964) belonging to the Theaceae, is also considered. A general wood anatomical description of the Bonnetiaceae excluding Kielmeyera and Asteropeia concludes this paper. Bonnetiaceae are wood anatomically intermediate between Theaceae and Guttiferae.

20 citations

Journal ArticleDOI
TL;DR: An indented dichotomous identification key was elaborated for the species of the genus Calibrachoa according to the type of leaf margins, the distribution of the stomata on leaf surfaces, the organization of the mesophyll and the morphology of the trichomes.
Abstract: We studied the leaf anatomy of sixteen species of Calibrachoa and eight species of Petunia. In Calibrachoa leaves, the vascular bundles sheath (endodermis) was formed by parenchymatous developed cells, different from those of the mesophyll. In Petunia, this sheath did not show a marked morphological differentiation. The Calibrachoa leaves could be separated according to the type of leaf margins, the distribution of the stomata on leaf surfaces, the organization of the mesophyll and the morphology of the trichomes. Based on these results, an indented dichotomous identification key was elaborated for the species of the genus Calibrachoa.

20 citations