Dataset Information

Amanoacondorensis (Phyllanthaceae), a new shrubby species from the Cordillera del Condor in southern Ecuador.

ABSTRACT: A new species of Amanoa (Phyllanthaceae) is described from the sandstone Nangaritza Plateau in the Cordillera del Cóndor Region in southern Ecuador. Amanoacondorensis J.L.Clark & D.A.Neill is a small tree, 4 m tall that is only known from the type collection. The new species is distinct by a shrub habit, presence of coriaceous leaves with an acuminate apex, and congested inflorescences. The relatively high elevation of the type locality, presence of an androphore, and the habit as shrub or low tree are an unusual combination for Amanoa. The conservation status of A.condorensis is assessed as Critically Endangered (CR), based on IUCN Criteria.

SUBMITTER: Clark JL

PROVIDER: S-EPMC10257137 | biostudies-literature | 2023

REPOSITORIES: biostudies-literature

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Amanoacondorensis (Phyllanthaceae), a new shrubby species from the Cordillera del Condor in southern Ecuador.

Clark John L JL Neill David A DA

PhytoKeys 20230602

A new species of Amanoa (Phyllanthaceae) is described from the sandstone Nangaritza Plateau in the Cordillera del Cóndor Region in southern Ecuador. Amanoacondorensis J.L.Clark & D.A.Neill is a small tree, 4 m tall that is only known from the type collection. The new species is distinct by a shrub habit, presence of coriaceous leaves with an acuminate apex, and congested inflorescences. The relatively high elevation of the type locality, presence of an androphore, and the habit as ...[more]

PMID: 37303595

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Project description:The Andean cloud forests of western Colombia and Ecuador are home to several endemic mammals; members of the Oryzomyini, the largest Sigmodontinae tribe, are extensively represented in the region. However, our knowledge about this diversity is still incomplete, as evidenced by several new taxa that have been described in recent years. Extensive field work in two protected areas enclosing remnants of Chocó montane forest recovered a high diversity of small mammals. Among them, a medium-sized oryzomyine is here described as a new genus having at least three new species, two of them are named and diagnosed. Although externally similar to members of the genera Nephelomys and Tanyuromys, the new genus has a unique molar pattern within the tribe, being characterized by a noticeable degree of hypsodonty, simplification, lamination, and third molar compression. A phylogeny based on a combination of molecular markers, including nuclear and mitochondrial genes, and morphological data recovered the new genus as sister to Mindomys, and sequentially to Nephelomys. The new genus seems to be another example of a sigmodontine rodent unique to the Chocó biogeographic region. Its type species inhabits cloud forest between 1,600 and 2,300 m in northernmost Ecuador (Carchi Province); a second species is restricted to lower montane forest, 1,200 m, in northern Ecuador (Imbabura Province); a third putative species, here highlighted exclusively by molecular evidence from one immature specimen, is recorded in the montane forest of Reserva Otonga, northern Ecuador (Cotopaxi Province). Finally, the new genus is also recorded in southernmost Colombia (Nariño Department), probably represented there also by a new species. These species are spatially separated by deep river canyons through Andean forests, resulting in marked environmental discontinuities. Unfortunately, Colombian and Ecuadorian Pacific cloud forests are under rapid anthropic transformation. Although the populations of the type species are moderately abundant and occur in protected areas, the other two persist in threatened forest fragments.

Dataset Information

Amanoacondorensis (Phyllanthaceae), a new shrubby species from the Cordillera del Condor in southern Ecuador.

Publications

<i>Amanoacondorensis</i> (Phyllanthaceae), a new shrubby species from the Cordillera del Condor in southern Ecuador.

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Dataset Information

Amanoacondorensis (Phyllanthaceae), a new shrubby species from the Cordillera del Condor in southern Ecuador.

Publications

﻿<i>Amanoacondorensis</i> (Phyllanthaceae), a new shrubby species from the Cordillera del Condor in southern Ecuador.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets

<i>Amanoacondorensis</i> (Phyllanthaceae), a new shrubby species from the Cordillera del Condor in southern Ecuador.