&lt;I&gt;Shuaria&lt;/I&gt; (Gesneriaceae), an Arborescent New Genus from the Cordillera del Cóndor and Amazonian Ecuador

Clark, John L.; Neill, David; Weber, Anton; Gruhn, Jennifer A.; Katan, Tuntiak

doi:10.1600/036364410792495917

Cited by 24 publications

(17 citation statements)

References 36 publications

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“…The new species, Croton condorensis, adds to an increasing list of plant species described in recent years from the Cordillera del Cóndor (Rogers 2002, Ulloa & Neill 2006, Clark et al 2010, Jara-Muñoz 2011, Neill & Asanza 2012. The Cordillera del Cóndor is a highly diverse and isolated sandstone mountain range located in southern Ecuador, along the border with Peru (Schulenberg & Awbrey 1997, Neill 2005.…”

Section: Introductionmentioning

confidence: 99%

Croton condorensis: an enigmatic new species of Euphorbiaceae from southern Ecuador

2014

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Croton condorensis (Euphorbiaceae), a new species from the Cordillera del Cóndor in southern Ecuador, is here described and illustrated. The new species occurs in sclerophyllous vegetation on sandstone substrate. A detailed examination of its morphology indicates that the species has some characters in common with Croton sect. Cyclostigma, but it also differs from that section in several other key characters. Given its restricted geographic distribution, the particular substrate where it grows, and its unusual morphology, we hypothesize that Croton condorensis might represent a previously unsampled clade of the Croton phylogeny. ResumenSe describe e ilustra Croton condorensis (Euphorbiaceae), una nueva especie de la Cordillera del Cóndor en el sur de Ecuador. Esta especie se encuentra en vegetación esclerófila sobre substrato de arenisca. Una examinación detallada de su morfología indica que la especie comparte algunos caracteres morfológicos con miembros de Croton sect. Cyclostigma, pero también posee caracteres clave que no son compatibles con la morfología de dicha sección. Dada su restringida distribución geográfica, el particular substrato en el que crece, y la falta de afinidades morfológicas evidentes con alguna de las secciones de Croton, planteamos la hipótesis de que Croton condorensis podría representar un clado de la filogenia del género aún no muestreado.

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Section: Introductionmentioning

confidence: 99%

Croton condorensis: an enigmatic new species of Euphorbiaceae from southern Ecuador

2014

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“…Two of the four sections, which Morton (1939) based essentially on corolla and calyx characters, have been segregated from Besleria and now constitute the genus Gasteranthus (Wiehler 1975). This segregation was adopted in all recent monographs and floras (Skog & Kvist 2000, Weber 2004, Weber et al 2013, Kriebel 2006, 2010 and confirmed by molecular systematic studies (Smith 2000, Roalson & Clark 2006, Clark et al 2010). According to Roalson & Clark (2006), Gasteranthus is sister to a clade containing Cremosperma Bentham (1846: 234) + Besleria and many of Morton's subsections of Besleria proved paraor polyphyletic and are no longer taxonomically relevant.…”

Section: Generic Delimitation In the Beslerieae Particularly Betweenmentioning

confidence: 66%

“…In the meantime, field studies and studies of cultivated material have added important data on fruit morphology of many taxa and molecular phylogenetic studies have been carried out, which provide a framework for analysis of this data (Smith 2000). The most recent and comprehensive phylogenetic study of the tribe Beslerieae are that of Roalson & Clark (2006) and Clark et al (2010). The authors demonstrated that both the (morphologically heterogenous) tribe and the genera included therein are monophyletic and that Besleria forms the crown group.…”

Section: Generic Delimitation In the Beslerieae Particularly Betweenmentioning

confidence: 99%

“…It is the type genus of the monophyletic (but morphologically heterogeneous) tribe Beslerieae within the subfamily Gesnerioideae (Roalson & Clark 2006, Clark et al 2010, Weber et al 2013. A remarkable flower and fruit diversity is found within the Beslerieae which has led to confusion on the circumscription of some genera included therein.…”

Section: Introductionmentioning

confidence: 99%

“…The genus Besleria was last revised by Morton (1939) who used an overly broad generic concept that included Gasteranthus Bentham (1846: 233), which was later segregated from Besleria based on an improved understanding of fruit characters (Wiehler 1975, Skog & Kvist 2000. Subsequent generic circumscriptions within the tribe have been confirmed by phylogenetic studies (Smith 2000, Roalson & Clark 2006, Clark et al 2010. Nevertheless, the genus is in need of a modern revision and much work remains to be done, especially concerning the circumscription of currently recognized species and the description of many new species.…”

Section: Introductionmentioning

confidence: 99%

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Besleria macropoda (Gesneriaceae): lectotypification, distribution, functional epiphylly and discordant fruit morphology of a rare Costa Rican endemic

Berger

Clark²,

Weber

2015

Phytotaxa

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Besleria macropoda, a rare and poorly known gesneriad endemic to Costa Rica, was recently collected for the first time on the southern slopes of the Fila Costeña (Puntarenas Province, SE Costa Rica). The collection considerably widens the geographic distribution to the southeastern part of Costa Rica. Moreover, the following unique characters not previously addressed in the literature were observed and are documented here: (1) The elongate peduncles of the inflorescences are clamped in a channel formed by the sunken midrib of the leaf, rendering the flowers and fruits positioned in the center of the leaf blade. The epiphyllous appearance of the inflorescence on the leaf surface enhances contrasting colors that may aid the pollination and/or fruit dispersal. (2) The fruits split open irregularly, with the fleshy carpel lobes becoming reflexed. This fruit dehiscence deviates from the indehiscent berries that typically characterize Besleria. This results in displaying a globose head of red placental tissue covered by tiny, red seeds. A preliminary survey of Besleria fruits suggests that this peculiar fruit type is present in at least 15 species representing almost 8% of the genus. Fruit morphology of Besleria is therefore less uniform than previously recognized and the "indehiscent berry" can no longer serve as a distinctive generic character of Besleria, which necessitates consideration in floras and identification keys. In addition, a list of herbarium specimens, lectotypification, a distribution map, IUCN red list assessment and an amended key to diagnose Besleria relative to Gasteranthus are provided.

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A revision of Drosera (Droseraceae) from the central and northern Andes, including a new species from the Cordillera del Cóndor (Peru and Ecuador)

et al. 2016

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<I>Shuaria</I> (Gesneriaceae), an Arborescent New Genus from the Cordillera del Cóndor and Amazonian Ecuador

Cited by 24 publications

References 36 publications

Croton condorensis: an enigmatic new species of Euphorbiaceae from southern Ecuador

Croton condorensis: an enigmatic new species of Euphorbiaceae from southern Ecuador

Besleria macropoda (Gesneriaceae): lectotypification, distribution, functional epiphylly and discordant fruit morphology of a rare Costa Rican endemic

A revision of Drosera (Droseraceae) from the central and northern Andes, including a new species from the Cordillera del Cóndor (Peru and Ecuador)

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