The Architecture of Inflorescences in the Myrtales

Weberling, Focko

doi:10.2307/2399476

Cited by 59 publications

(38 citation statements)

References 4 publications

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“…No tratamento taxonômico, os gêneros e as espécies foram apresentados em ordem alfabética. As terminologias morfológicas estão baseadas em Radford gv" cn0 (1974), Baumgratz (1985) e Weberling (1988). As circunscrições das tribos Merianieae e Miconieae seguem Baumgratz gv"cn0 (2007).…”

Section: Methodsunclassified

Melastomataceae nos remanescentes florestais do Parque Estadual do Ibitipoca, Minas Gerais, Brasil

2010

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-(Melastomataceae in the forest remnants of Ibitipoca State Park, Minas Gerais State, Brazil). It is presented a taxonomic study of the Melastomataceae family occurring in the forest remnants of Parque Estadual do Ibitipoca, which is located in the southeast of Minas Gerais State, between 800-1.784 m alt. In that area, there are 21 species belonging to four genera: Jwdgtkc"and Ogtkcpkc (tribe Merianieae) and Ngcpftc and Okeqpkc (tribe Miconieae). The genus Okeqpkc is the most representative, with 12 species, followed by" Ngcpftc, with seven species, and Jwdgtkc and Ogtkcpkc with one species each. A key to identify all the taxa, morphological descriptions and illustrations are presented, besides data from geographical distribution, phenology, and habitat of the species. In the area 15 taxa are restricted to forests and represent the fi rst record to this Conservation Unit. Ngcpftc"nwvgc and N0"ownvkrnkpgtxku are reported for the fi rst time to Minas Gerais State.Resumo -(Melastomataceae nos remanescentes fl orestais do Parque Estadual do Ibitipoca, Minas Gerais, Brasil). Apresenta-se o estudo taxonômico das Melastomataceae ocorrentes nos remanescentes fl orestais do Parque Estadual do Ibitipoca, situado no sudeste de Minas Gerais, entre 800-1.784 m de altitude. Nas formações fl orestais são encontradas 21 espécies, pertencentes a duas tribos e quatro gêneros: Merianieae (Jwdgtkc e Ogtkcpkc) e Miconieae (Ngcpftc e Okeqpkc). O gênero mais representativo é Okeqpkc, com 12 espécies, seguido de Ngcpftc, com sete espécies, e Jwdgtkc"e Ogtkcpkc, com uma espécie cada. Apresentam-se chave analítica para identifi cação dos táxons, descrições morfológicas e ilustrações, além de dados sobre a distribuição geográfi ca, fenológicos e sobre o hábitat das espécies. Na área 15 táxons são exclusivos das fl orestas e representam o primeiro registro para essa Unidade de Conservação. Ngcpftc"nwvgc e N0"ownvkrnkpgtxku constituem novas ocorrências para o estado de Minas Gerais.

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Section: Methodsunclassified

Melastomataceae nos remanescentes florestais do Parque Estadual do Ibitipoca, Minas Gerais, Brasil

2010

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“…Así mismo, en la delimitación de la mayoría de nuevos géneros de Myrtaceae suramericanos (Landrum, 1990(Landrum, , 1991Salywon & Landrum, 2007) En las mirtáceas nativas colombianas existen variaciones importantes entre las inflorescencias descritas arriba. Por ejemplo, algunos géneros nativos como Myrrhinium poseen inflorescencias particulares descritas como dicasios simples agregados en racimos cortos (Parra-O., 2003; véase su figura 1), que se desarrollan en ejes de ramas maduras desprovistos de hojas, aparentando ser caulinares (Weberling, 1988 En los géneros y las especies de Myrtaceae introducidas en Colombia, Leptospermum y Myrtus poseen flores solitarias, Melaleuca presenta inflorescencias en espigas, Syzygium desarrolla racimos y panículas, y Pimenta posee panículas. Corymbia y Eucalyptus presentan inflorescencias particulares en las que la unidad básica de la inflorescencia es una umbela con cinco a siete flores (algunas veces la umbela es irregular), y varias de estas umbelas pueden disponerse en racimos o panículas de diferente longitud.…”

Section: Clasificaciones Taxonómicas Supragenéricas En Myrtaceae Neotunclassified

Sinopsis de la familia Myrtaceae y clave para la identificación de los géneros nativos e introducidos en Colombia

Parra‐O.

2014

Rev. Acad. Colomb. Cienc. Ex. Fis. Nat.

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ResumenSe presenta una sinopsis taxonómica de la familia Myrtaceae en Colombia que incluye los géneros nativos e introducidos en el país. Se analiza la diversidad de la familia en términos de la riqueza de especies, la distribución geográfica y altitudinal y la representatividad en las regiones naturales del país. Se describen los caracteres morfológicos que permiten diferenciar los géneros, así como los caracteres diagnósticos de cada uno, la distribución geográfica y una estimación preliminar del número de especies de estos. Se concluye con una clave para la identificación de los géneros de la familia en Colombia.Palabras clave: Colombia, Calyptranthes, Eugenia, flora de Colombia, Myrcia, Myrtaceae. Synopsis of the plant family Myrtaceae and key for the identification of the native and introduced genera in Colombia AbstractA taxonomic synopsis of Myrtaceae in Colombia is presented, including all native and introduced genera of the family growing in the country. The family diversity is analyzed in terms of species richness, geographic and altitudinal distribution, and representativeness in the country´s natural regions. Morphological characters that facilitate differentiation of the genera present in the country are described with information on diagnostic characters, geographic distribution, and a preliminary estimate of the number of species for each genus. A key to separate the genera in Colombia is also given.

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“…Inflorescences:-Inflorescence structure and architecture have been critically studied and described in the order Myrtales (Briggs & Johnson 1979, Weberling 1988. Although there is no standardized descriptive terminology for inflorescences in the Melastomataceae, the summary by Briggs and Johnson (1979) in the Myrtaceae is one of the most useful guides for tracing the evolution of inflorescence architecture, and is applicable to angiosperms generally (Almeda & Robinson 2011).…”

Section: Biolleyana (Cau Ll Infl Hyp) M Erikasplundii (Ll Inmentioning

confidence: 99%

“…The dichasial branching pattern is developed in thyrsoids or dithyrsoids in the majority of species of the Octopleura clade. These terms are used in the sense of Briggs & Johnson (1979) and also explained in Weberling (1988), where they describe a bracteose paniculiform inflorescence where a multinodate main axis bears lateral dichasia of an order of branching greater than one. The dithyrsoid is a twice compound thyrsoid where the multinodate main axis bears lateral partial thyrsoids that in their turn bear lateral dichasia.…”

Section: Biolleyana (Cau Ll Infl Hyp) M Erikasplundii (Ll Inmentioning

confidence: 99%

Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America

Gamba-Moreno

Almeda

2014

Phytotaxa

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The Octopleura clade of Miconia is a natural group of Neotropical subshrubs and small trees comprising some thirty-three species. These had previously been described in Ossaea and Clidemia, two traditionally recognized genera of Miconieae, but this natural group is nested within the megadiverse genus Miconia. This study represents the first comprehensive monograph of the clade across its entire range based on a study of over 2100 collections from seven herbaria. Thirteen new combinations are made (Miconia aguilarii, M. aurantiaca, M. biolleyana, M. boekei, M. chocoensis, M. evanescens, M. incerta, M. laxivenula, M. palenquensis, M. quinquenervia, M. radicans, M. reitziana, and M. rufibarbis). Thirteen new names are provided for epithets preempted in Miconia (M. albertobrenesii, M. alboglandulosa, M. approximata, M. atropurpurea, M. bensparrei, M. bractiflora, M. erikasplundii, M. magnifolia, M. neocoronata, M. quadridomius, M. sessilis, M. spiciformis, and M. variabilis). Six new species are proposed (M. alatissima, M. anchicayensis, M. formicaria, M. latidecurrens, M. renatoi, and M. veraguensis). A taxonomic key, detailed descriptions, distribution maps, and phenological and ecological information are presented for all species, along with SEM images of seed morphology for selected species. A preliminary geospatial conservation assessment is made for each species. Diagnostic illustrations are included for all new taxa and other selected species. A molecular phylogenetic analysis based on four genic loci is presented, along with a reconstruction of ancestral character states. Molecular and morphological data are used to develop a better understanding of the constituent species of the clade and their evolutionary relationships. Three subclades, Approximata, Quinquenervia, and Variabilis, are evident within the Octopleura clade, and supported by morphological synapomorphies.

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The Architecture of Inflorescences in the Myrtales

Cited by 59 publications

References 4 publications

Melastomataceae nos remanescentes florestais do Parque Estadual do Ibitipoca, Minas Gerais, Brasil

Melastomataceae nos remanescentes florestais do Parque Estadual do Ibitipoca, Minas Gerais, Brasil

Sinopsis de la familia Myrtaceae y clave para la identificación de los géneros nativos e introducidos en Colombia

Systematics of the Octopleura Clade of Miconia (Melastomataceae: Miconieae) in Tropical America

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