Estrutura das madeiras brasileiras de Dicotiledôneas - XXVI. Euphorbiaceae.

Araújo, Paulo Agostinho De Matos; Filho, Armando De Mattos

doi:10.1590/2175-78601984365903

Cited by 2 publications

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“…We compared the fossils with collections of extant Humiriaceae fruits and wood in the US National Herbarium (US) at the Smithsonian Institution in Washington, DC; the Smithsonian Tropical Research Institute (STRI) in Panama; the University of Florida Herbarium (FLAS) in Gainesville, Florida; the Missouri Botanical Garden Herbarium (MO); and the US National Arboretum Herbarium (BARC). The wood observations were supplemented by consideration of available descriptions and images (Metcalfe and Chalk 1950;Détienne and Jacquet 1983;Araujo and Mattos-Filho 1985;Miller and Détienne 2001;InsideWood 2004-;Wheeler 2011). Descriptions from table 1 are based entirely on mature samples, but we also examined small-diameter stems of Endopleura, Humiria, and Sacoglottis.…”

Section: Methodsmentioning

confidence: 99%

“…Our overview of wood sections and literature on the anatomy of seven extant genera of Humiriaceae draws on previous descriptions of the general morphology of the family (e.g., Metcalfe and Chalk 1950;Détienne and Jacquet 1983;Araujo and Mattos-Filho 1985;Miller and Détienne 2001;table 1). Wood of Humiriaceae is characterized by the lack of distinct growth ring boundaries; diffuse porosity; vessels exclusively solitary (rarely arranged in a radial to diagonal pattern; e.g., Humiria, Sacoglottis, Vantanea); scalariform perforation plates, usually with less than 20 bars in mature samples (immature wood frequently with up to 40 bars per perforation plate); alternate intervessel pits (rarely opposite, e.g., Humiria, Humiriastrum), usually 4 to 110 mm in size; vessel-ray pitting with reduced borders of large and various shapes (predominantly in Duckesia, Endopleura, and Vantanea) to distinct (predominantly in Humiriastrum and Hylocarpa).…”

Section: Overview Of Extant and Fossil Wood Of Humiriaceaementioning

confidence: 99%

“…The combination of these characters facilitates recognition of humiriaceous wood within angiosperms (Metcalfe and Chalk 1950;Détienne and Jacquet 1983;Araujo and Mattos-Filho 1985;Miller and Détienne 2001;table 1). However, at the generic level, wood characters appear to be highly similar across all genera of the family.…”

Section: Overview Of Extant and Fossil Wood Of Humiriaceaementioning

confidence: 99%

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Phytogeographic History of the Humiriaceae (Part 2)

Herrera

Manchester

Vélez‐Juarbe

et al. 2014

International Journal of Plant Sciences

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JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact support@jstor.org.. Here we provide new fossil evidence that expands our understanding of the paleobiogeographic history and evolution of this family.Methodology. Fossil endocarps and wood were compared with extant relatives of the family. Transverse and longitudinal sections of fossil and modern fruits were studied anatomically and morphologically.Pivotal results. Fruits of the new species, Duckesia berryi sp. n., from the Oligocene of Pacific coastal Peru (ca. 30-28.5 Ma), provide the earliest fossil evidence of Duckesia-the genus is now confined to Amazonia. We also document the earliest fossil fruit record for Sacoglottis tertiaria, from the early Oligocene (ca. 33.9-28.4 Ma) of Puerto Rico, and a new occurrence of Vantanea cipaconensis fruits, from the late Miocene of Panama (ca. 9-8.5 Ma). The new fossil wood, Humiriaceoxylon ocuensis gen. et. sp. n., from the late Eocene (ca. 37.2-33.9 Ma) of Ocú , Panama, confirms that this family was represented by large trees anatomically consistent with the extant genera.Conclusions. Humiriaceae originated in the Neotropics, with the oldest-known occurrences being fruits of Lacunofructus cuatrecasana and wood of H. ocuensis from the late Eocene of Panama. The family was generically diverse and widely distributed geographically across northern South America and Central America by the early Miocene. The new fossils also provide further evidence of regional extinctions within the Neotropics; extirpation of particular genera from Central America, the Caribbean, and coastal Peru indicate that Neogene orogenic and climatic events had an important effect on the modern-day distribution of the family.

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Section: Methodsmentioning

confidence: 99%

Section: Overview Of Extant and Fossil Wood Of Humiriaceaementioning

confidence: 99%

Section: Overview Of Extant and Fossil Wood Of Humiriaceaementioning

confidence: 99%

See 1 more Smart Citation

Phytogeographic History of the Humiriaceae (Part 2)

Herrera

Manchester

Vélez‐Juarbe

et al. 2014

International Journal of Plant Sciences

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Wood anatomy of the Euphorbiaceae, in particular of the subfamily Phyllanthoideae

Mennega

1987

Botanical Journal of the Linnean Society

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Wood anatomy of the Euphorbiaceae, in particular of the subfamily Phyllanthoideae. The great variety in wood structure of the large family Euphorbiaceae makes it impossible to describe briefly a général wood pattern. Nevertheless, a more or less clear division into four anatomical groups can be made. A short overview is given of the wood structure of the uni‐ovulate subfamilies Acalyphoideae, Crotonoideae, and Euphorbioideae, following the classification by Webster. These subfamilies cannot be distinguished by their anatomy. The paper is mainly devoted to the bi‐ovulate subfamily Phyllanthoideae. Within this subfamily, two groups can be recognized on the basis of their wood anatomy: the Aporusa type with a great number of primitive characters, and the Glochidion type, in which primitive features such as scalariform vessel perforation plates are absent. A short description of the 13 tribes is given as well as suggestions for rearrangement of the succession of the tribes. In several tribes some taxa are anomalous and, on anatomical evidence, exclusion of some genera, sometimes with assignment to another tribe, is suggested.

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Estrutura das madeiras brasileiras de Dicotiledôneas - XXVI. Euphorbiaceae.

Cited by 2 publications

References 0 publications

Phytogeographic History of the Humiriaceae (Part 2)

Phytogeographic History of the Humiriaceae (Part 2)

Wood anatomy of the Euphorbiaceae, in particular of the subfamily Phyllanthoideae

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