Contribuição para o estudo dendrológico de cinco leguminosas da Amazônia

Loureiro, Arthur A.; Silva, Marlene Freitas da

doi:10.1590/1809-43921973032017

Acta Amaz.

1973

DOI: 10.1590/1809-43921973032017

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Contribuição para o estudo dendrológico de cinco leguminosas da Amazônia

Arthur A. Loureiro

Marlene Freitas da Silva

Abstract: Sinopse Cinco leguminosas da Amazônia são referidas: Lecointea amazonica, Macrolobium acaciaefolium, Hymenaea parvifolia, Crudia amazonica e Dimorphandra parviflora. Para cada espécie são apresentadas as seguintes indicações: a) da árvore — descrição botânica, habitat, ocorrência geográfica e no. mes vulgares; b) — da madeira — caracteres gerais, descrição macro e microscópica, e usos comuns. Ilustram o trabalho 5 macros e 10 microfotografias do lenho das referidas espécies.

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Pollen morphology and wood anatomy of the Crudia group (Leguminosae, Caesalpinioideae, Detarieae)

Banks¹,

Gasson

2000

Botanical Journal of the Linnean Society

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Pollen from all 12 and wood from 11 genera in the Crudia group have been examined using light, scanning electron and transmission electron microscopy. This group is currently of systematic interest because it is part of a tribe undergoing taxonomic revision. The pollen grains fall into four groups: (1) Oxystigma, Kingiodendmn, Gossweilerodendron, Bathiaea,.Neoapaloxylon, Stemonocoleus, Guibourlia and Prioria have pollen of a widespread and generalized cacsalpinioid type that are small to medium sized, spheroidal to prolate, tricolporate and with a perforate exine, with some variation in surface ornamentation, aperture margins and ultrastructure. (2) Crudia pollen is tricolporate, coarsely striate with a coarsely scabrate to vcrmiculate aperture membrane. (3) Augouardia is tricolporate and coarsely reticulate. (4) Hardwickia and Colophosperrnum are pantoporate and reticulate or microreticulate‐rugulate. The wood of Prioria, Oxystigma, Kingiodendmn and Gossweilerodendron has diffusely arranged axial canals, and these are four genera that have recently been merged into Prioria. Bathiaea has tangentially arranged axial canals. The other genera lack normal axial canals. Crudia is distinct, with banded parenchyma and variably storied short rays, Augouardia has much less abundant axial parenchyma that is mainly scanty paratracheal and vasiccntric, Guibourtia has mainly aliform parenchyma and rays variable in height and width, and Colophosperrnum and Hardwickia have similar paratracheal parenchyma patterns, although the rays tend to be wider in the latter. Our conclusion is that the Crudia group is not monophyletic.

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Pollen morphology and wood anatomy of the Crudia group (Leguminosae, Caesalpinioideae, Detarieae)

Banks¹,

Gasson

2000

Botanical Journal of the Linnean Society

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Contribuição para o estudo dendrológico de cinco leguminosas da Amazônia

Cited by 1 publication

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Pollen morphology and wood anatomy of the Crudia group (Leguminosae, Caesalpinioideae, Detarieae)

Pollen morphology and wood anatomy of the Crudia group (Leguminosae, Caesalpinioideae, Detarieae)

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