Pollen morphology of the genera Irlbachia, Tachia, Voyria and Voyriella (Gentianaceae Juss.) found in the Reserva Florestal Adolpho Ducke (Amazonas, Brazil)

Ferreira, Marcos Gonçalves; Absy, Maria Lúcia; Gonçalves-Esteves, Vânia

doi:10.1590/s0102-33062012000400020

Cited by 5 publications

(3 citation statements)

References 12 publications

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“…Annual rainfall ranges from 1,900 to 2,300 mm, and Rodriguésia 73: e00182020. 2022 rainy season in December to May and dry season from June to November (Ferreira et al 2012).…”

Section: Study Areamentioning

confidence: 99%

Flora of the Reserva Ducke, Amazonas, Brazil: Simaroubaceae

2022

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The present study aims to improve the knowledge of Simaroubaceae in the Reserva Ducke, Manaus, Amazonas. It is based on morphological analysis of herbaria collections and field expeditions. The family is represented in that area by six species belonging to four genera: Homalolepis (1 sp.), Picrolemma (1 sp.), Simaba (3 spp., including a new one described herein), and Simarouba (1 sp.). Identification keys, morphological descriptions, illustrations, and taxonomic comments are provided for each species.

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“…Annual rainfall ranges from 1,900 to 2,300 mm, and Rodriguésia 73: e00182020. 2022 rainy season in December to May and dry season from June to November (Ferreira et al 2012).…”

Section: Study Areamentioning

confidence: 99%

Flora of the Reserva Ducke, Amazonas, Brazil: Simaroubaceae

2022

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“…Voyria Aubl. Figura 19 h-i Morfologia polínica: mônade, isopolar a subisopolar, oblato a prolato, tamanho pequeno, (1)-2-3-(4)-porado, psilado (Ferreira et al 2012).…”

Section: Stylosanthes Sw Figura 19 D-eunclassified

Catálogo polínico de um testemunho pleistocênico da turfeira Sempre-Vivas inserida no Bioma Savana Tropical, Brasil

Fonseca

Horák‐Terra

Silva

et al. 2021

Hoehnea

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RESUMO Este estudo apresenta a análise polínica de uma turfeira localizada no Parque Nacional das Sempre-Vivas (PNSV), na Serra do Espinhaço Meridional, município de Diamantina, Estado de Minas Gerais, Brasil, para fornecer material de referência para a identificação de grãos de pólen preservados em solo de Cerrado durante o Pleistoceno e Holoceno. A análise abrangeu 16 níveis estratigráficos de um testemunho de sondagem de 162 cm de comprimento, correspondentes aos últimos 32.800 anos cal AP. A preparação química consistiu de lavagem ácida com HCl, HF, acetólise e tamisação por banho de ultrassom, com montagem do resíduo polínico em lâminas de microscopia com gelatina glicerinada. A análise foi realizada com base em observações morfológicas sob microscopia óptica e ilustrações dos grãos de pólen com base em literatura especializada. Foram identificados 116 tipos polínicos relacionados às fitofisionomias florestais ocorrentes no PNSV representadas pelas florestas semidecídua e montana, e pelas fitofisionomias do Cerrado (latu senso), áreas florestadas e formações campestres. As características morfológicas dos grãos de pólen foram bastante variáveis e podem ser utilizadas como indicadores nas reconstruções paleoambientais da sucessão da vegetação e condições paleoclimáticas do bioma Savana Tropical (Cerrado).

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“…The genus Curtia and Hockinia were analyzed by Crespo & Marcondes-Ferreira (2006), thus increasing knowledge of the palynology of the tribe Saccifolieae. Ferreira et al (2012) studied the palynology of four genera occurring in a forest Reserve in the Amazon and found great variation in the morphology of species. The subtribe Swertiinae had its pollen grains studied and the results had phylogenetic implications (Chassot & Hagen 2008).…”

Section: Introductionmentioning

confidence: 99%

Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, Brazil

2017

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Based on molecular data, the tribe Chironieaea (Gentianaceae) is divided into three subtribes. Th is study aims to describe the pollen morphology of representatives of two of the three subtribes that occur in the Atlantic Forest in order to contribute to a better understanding of the palynology of these taxa and to clarify the taxonomy of the family: subtribe Chironiinae (Centaurium erythraea and Zygostigma australe) and subtribe Coutoubeinae ( Coutoubea ramosa, C. spicata, Deianira chiquitiana, D. damazioi, D. erubescens, D. nervosa and D. pallescens). Botanical material was obtained from exsicates and treated by acetolysis for light microscopy. Pollen grains were measured and photomicrographed, and the results statistically analyzed. For SEM study, non-acetolyzed pollen grains were sprayed onto metal stubs. Th e results show that the pollen grains in Chironiinae are medium-sized, prolate-spheroidal or subprolate, 3-colporate, monads, with striate-reticulate ornamentation. In Coutoubeinae t he pollen grains are large or medium-sized tetrads with aperture varying between 3-porate or 3-hemicolpates and the sexine microreticulate (D. erubescens) or varied reticulate (the other species). Pollen morphology proved to be an important tool for the systematics of the family since it corroborated the existing placement of species into subtribes based on molecular data.

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Pollen morphology of the genera Irlbachia, Tachia, Voyria and Voyriella (Gentianaceae Juss.) found in the Reserva Florestal Adolpho Ducke (Amazonas, Brazil)

Cited by 5 publications

References 12 publications

Flora of the Reserva Ducke, Amazonas, Brazil: Simaroubaceae

Flora of the Reserva Ducke, Amazonas, Brazil: Simaroubaceae

Catálogo polínico de um testemunho pleistocênico da turfeira Sempre-Vivas inserida no Bioma Savana Tropical, Brasil

Pollen diversity in selected species of the tribe Chironieae (Gentianaceae Juss.) that occur in the Atlantic Forest, Brazil

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