scholarly journals Sarcoglottis neillii (Orchidaceae: Spiranthinae), a new species from the Andean Tepui Region of Ecuador and Peru

Phytotaxa ◽  
2019 ◽  
Vol 427 (1) ◽  
pp. 1-8
Author(s):  
GERARDO A. SALAZAR ◽  
FRANCISCO TOBAR ◽  
ROLANDO JIMÉNEZ-MACHORRO ◽  
EFRAÍN FREIRE ◽  
MARCIA PEÑAFIEL CEVALLOS

Recent exploration of the foothills of the Cordillera del Cóndor, southeastern Ecuador, led to the discovery of an unknown species of Sarcoglottis, and subsequent study in Peruvian herbaria permitted to record it in Peru. Here we describe it as Sarcoglottis neillii and provide a detailed drawing and color photographs taken from live plants. We compare its morphology with that of similar members of Sarcoglottis and conduct a preliminary assessment of its conservation status. Sarcoglottis neillii belongs to a small group of species including S. metallica, S. maroaënsis and S. stergiosii, differing from the former two species in leaf coloration and from the latter in flower size and labellum morphology. The single known Ecuadorian location of S. neillii was destroyed by extensive open pit-mining activities, but the several records from Peru suggest that the species is widespread; three locations occur within the Yanachaga-Chemillén National Park, but information on its actual range and potential threats is lacking and we suggest for it the category of Data Deficient (DD) until further field studies permit a better-informed assessment of its risk status.

Phytotaxa ◽  
2020 ◽  
Vol 437 (2) ◽  
pp. 113-117
Author(s):  
HAO WEI C. HSU ◽  
DENMARC R. ARANAS ◽  
GRECEBIO JONATHAN D. ALEJANDRO ◽  
SIGRID LIEDE-SCHUMANN

Argostemma separatum, a new species with free stamens in star-shaped corolla from Mt. Halcon Oriental Mindoro, Philippines is here described and compared with Argostemma diversifolium, the only species of the genus with this type of flower. This species is distinct from A. diversifolium by its indumentum on stem, leaf blades and calyx, smaller leaf blades, fewer flowered inflorescences, shape of stipule and calyx, red tips on corolla lobes, and color of anthers. Based on the recent IUCN categories, the conservation status of A. separatum is Data Deficient (DD) since it was only collected at the type locality.


Phytotaxa ◽  
2014 ◽  
Vol 177 (1) ◽  
pp. 26 ◽  
Author(s):  
Tariq Stévart ◽  
Jean Philippe Biteau ◽  
Valérie Cawoy ◽  
Vincent Droissart

Two specimens of an apparently new Bulbophylum species were found in the Monts de Cristal, Gabon. They have a unique leaf shape among the species of this genus in Continental Africa. The flower shares the general morphology of Bulbophyllum saltatorium, one of the most common members of Bulbophyllum in Central Africa. Eight other taxa of the Continental African Bulbophyllum possess unifoliate pseudobulbs and long hairs on the lip. Comparison with them indicates that the new collections from Gabon represent a distinctive species, not yet known in the genus. We describe it here as Bulbophyllum pauwelsianum. The distinguishing features of the species include its leaves, which are pendant, coriaceous, linear, semiterete and v-shaped in transverse section, and its sepals, which possess relatively long hairs on their margins. A table of the taxonomic treatments of the nine Continental African Bulbophyllum taxa considered here is included. A taxonomic key and a table of the diagnostic characters of these nine taxa are given to facilitate identification. The new species is restricted to lowland forests of the Monts de Cristal in Gabon. A preliminary assessment of the conservation status, using the IUCN Red List Categories and Criteria is provided.


2020 ◽  
Author(s):  
Pierre A. Mvogo Ndongo ◽  
Thomas von Rintelen ◽  
Neil Cumberlidge

A new species of freshwater crab of the genus Potamonemus Cumberlidge & Clark, 1992, is described from Mount Manengouba Reserve and the Bakossi National Park in the tropical rainforests of southwestern Cameroon, Central Africa. Potamonemus man n. sp. is recognized by characters of the carapace and chelipeds. In addition, a phylogenetic analysis based on partial sequences of three mitochondrial DNA genes (COI, 12S rRNA, and 16S rRNA) that included representatives of all other freshwater crab genera found in Cameroon recovered each of the new species as a distinct lineage. A diagnosis and illustrations of the new species are provided, and it is compared to the other species in this genus. Brief notes are provided on the ecology of the new species and the two other species of Potamonemus. An identification key to the species of Potamonemus is provided and its conservation status discussed.


2020 ◽  
Vol 45 (1) ◽  
pp. 85-90
Author(s):  
Rafael Barbosa Pinto ◽  
Marcos José da Silva ◽  
Ana Maria Goulart de Azevedo Tozzi ◽  
Vidal de Freitas Mansano

Abstract—A new species, Hymenaea jeaniana, is described and illustrated. The species is known from one of the best-sampled reserves of Amazon Rainforest, the Reserva Adolpho Ducke, in Manaus, and from protected areas of the municipality of Presidente Figueiredo, in Amazonas, Brazil. Previously, the species has been mistakenly assigned to the circumscription of the morphologically similar H. parvifolia, but differs in certain leaflet, inflorescence, and flower characteristics. The new species has a restricted distribution and is assessed as Endangered following IUCN Red List criteria. Based on herbarium collections and field studies, we present a full species description, an illustration, conservation status, and taxonomic comments. An identification key to the Hymenaea species of Brazil is also provided. There are six species of Hymenaea in the Amazon Basin, including the species described herein.


Phytotaxa ◽  
2020 ◽  
Vol 436 (2) ◽  
pp. 182-186
Author(s):  
ISIS ROLLIM ◽  
MARCELO TROVÓ

We describe and illustrate Wahlenbergia itatiaiensis, a new species of Campanulaceae, endemic to the Itatiaia National Park in the Atlantic Forest (Brazil). The new species is compared with W. linarioides, the sympatric and morphologically most similar species, and to W. intermedia. Wahlenbergia itatiaiensis is mainly distinguished by the linear to lanceolate leaves with few, short denticles along the margin, 3-locular ovary, and 3-lobed stigma. An identification key for these species is provided. The new species occurs on sandy and rocky, wet soils, adjacent to dirt roadsides of the upper part of the National Park. Detailed comments on the distribution and conservation status, as well as details of morphological variation and photographs are provided.


Phytotaxa ◽  
2020 ◽  
Vol 471 (2) ◽  
pp. 139-144
Author(s):  
JIAN-RONG YOU ◽  
JUAN RAN ◽  
CHENG LIU ◽  
YU-MIN SHUI ◽  
JIA-XIANG LI ◽  
...  

Mitreola crystallina was proposed in 2006, but not valid. Here, we validate the name by giving a complete description, diagnosis, and illustration as a new species of Loganiaceae. Morphologically, it is most similar to M. pedicellata, but can be distinguished by its stems erect (vs. creeping), corolla lobes blue (vs. white), and stamens inserted at or near base of the corolla tube (vs. middle to nearly mouth of corolla tube). It is endemic to the shady cliffs of limestone forests of Malipo County, southwest China. The conservation status was assessed as data deficient (DD) according to the IUCN Red List categories and criteria. And a key to species of Mitreola in China is provided.


Oryx ◽  
2007 ◽  
Vol 41 (3) ◽  
pp. 300-305 ◽  
Author(s):  
Scott Zona ◽  
Raúl Verdecia ◽  
Angela Leiva Sánchez ◽  
Carl E. Lewis ◽  
Mike Maunder

AbstractThe conservation status of 134 species, subspecies and varieties of West Indian palms (Arecaceae) is assessed and reviewed, based on field studies and current literature. We find that 90% of the palm taxa of the West Indies are endemic. Using the IUCN Red List categories one species is categorized as Extinct, 11 taxa as Critically Endangered, 19 as Endangered, and 21 as Vulnerable. Fifty-seven taxa are classified as Least Concern. Twenty-five taxa are Data Deficient, an indication that additional field studies are urgently needed. The 11 Critically Endangered taxa warrant immediate conservation action; some are currently the subject of ex situ and in situ conservation projects in the region’s botanical gardens. We recommend that preliminary conservation assessments be made of the 25 Data Deficient taxa so that conservation measures can be implemented for those facing imminent threats.


Kew Bulletin ◽  
2021 ◽  
Author(s):  
Iain Darbyshire ◽  
Erin A. Manzitto-Tripp ◽  
Frances M. Chase

SummaryThe second part of a taxonomic revision of the tribe Barlerieae (Acanthaceae) in Angola and Namibia covers Barleria sects. Somalia and Stellatohirta. Thirty-one taxa including 27 accepted species are treated. Four new species (Barleria eburnea, B. imatensis, B. louiseana and B. thunbergiiflora), one new subspecies (B. kacondensis subsp. glabrescens) and one new variety (B. violascens var. humpatana) are described. In addition, B. taitensis S.Moore var. occidentalis S.Moore is elevated to subspecies status and B. newtonii Lindau is resurrected as a distinct species endemic to the Lubango Highlands of Angola. Full descriptions, citations of types and representative specimens, and notes on their habitat(s), ecology and biogeography are provided for each taxon. Thirteen names in Barleria are lectotypified and a neotype is selected for B. newtonii. A preliminary assessment of the conservation status and extinction risk is provided for each taxon. Of the 31 taxa enumerated, five are assessed as Endangered, two as Vulnerable, two as Near Threatened, and 13 are of Least Concern, whilst nine are currently considered to be Data Deficient. This contribution completes our revision of Barleria in Angola and Namibia, with 59 accepted species, four additional subspecies, four additional varieties and two incompletely known taxa documented in total. A remarkable 75% of the taxa are endemic or near-endemic to Angola and Namibia.


2014 ◽  
Vol 71 (3) ◽  
pp. 235-242
Author(s):  
Michał Ronikier ◽  
Anna Miśkiewicz ◽  
Piotr Mleczko

<em>Suillus plorans</em> is a very interesting mountain ectomycorrhizal fungus, attached to <em>Pinus cembra</em>. The paper reports its presence in the Polish Tatra Mts as a new species for Poland, discusses its previous situation among macromycetes of Poland, and its conservation status. It includes detailed descriptions of carpophores and mycorrhizae specimens collected in Poland. Basing on records of both carpophores and mycorrhizae, a map of species' occurrence in the Tatra National Park was prepared and compared with the distribution of <em>Pinus cembra</em> in this area. Identity of mycorrhizae was assessed by a morphological study and confirmed by PCR-RFLP patterns analysis of carpophore and mycorrhizal mycelium.


2016 ◽  
Vol 67 (1) ◽  
pp. 3-9 ◽  
Author(s):  
Bartłomiej Glina ◽  
Piotr Gajewski ◽  
Zbigniew Kaczmarek ◽  
Wojciech Owczarzak ◽  
Paweł Rybczyński

AbstractUnderstanding the effect of long-term drainage of peatland areas is helpful in future peatland management and regulations of water conditions. The aim of this work was to assess the current state of fen peatland soils in the Grójecka Valley (eastern part of the Wielkopolskie voivodeship, central Poland), affected by long-term agricultural use (pastures, meadows) since the 1960s and potentially by lignite open pit mining industry (KWB Konin) since 1980s. Field studies were carried out in 2015 in selected fen peatland areas. Soil material for laboratory analysis was collected from genetic horizons from four soil profiles. The surface horizons of studied organic and organo-mineral soils were built with well-developed moorsh material. They were classified as medium moorshiefied – MtII (profile 1, 3 and 4) and strongly moorshiefied – MtIII (profile 2). Obtained results of physical and physico-chemical analysis indicate that long-term peatland utilization connected with potential impact of the lignite mining, transformed mainly the upper horizons of studied organic and organo-mineral soils. However, despite obvious strong human impact on peatlands ecosystems, we cannot exclude the climate variables, what should be confirmed by long-term monitoring program. Furthermore, presented paper indicated that new subtype moorsh-muddy soils (in Polish: gleby murszowo-mułowe) within the type of gleyic soils should be implemented in the next version of Polish Soil Classification.


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