Wrongly identified material of Davilla macrocarpa (Dilleniaceae) represents two new species from Brazil

2018 ◽  
Vol 151 (3) ◽  
pp. 423-433
Author(s):  
Claudio Nicoletti de Fraga ◽  
João Renato Stehmann
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Morphological Data ◽  
Herbarium Specimens ◽  
Endangered Plant ◽  
Fresh Material ◽  
Herbarium Collections ◽  
Near Threatened

Background – Davilla Vand. is a monophyletic genus and member, with other genera endemic to the Neotropics, of the Doliocarpoid clade, a natural lineage of the subfamily Doliocarpoideae J.W.Horn. Its sepals, unequal in size, with two inner ones large and crustaceous and completely covering the fruit, represent a morphological synapomorphy for the genus.Methods – Our fieldwork in remnants of the Atlantic forest in the states of Bahia and Espírito Santo, Brazil, led to the discovery of two new Davilla species. Herbarium collections were consulted for their determination and comparison with identified specimens. Morphological data were obtained through the study of herbarium specimens and of fresh material collected in the field. Key results – Davilla coriacea Fraga & Stehmann and D. undulata Fraga & Stehmann, are herein described and illustrated. Diagnostic characters and affinities of the new species are discussed, accompanied by notes on their ecology, geographic distribution and conservation status. A key to all species of Davilla sect. Homalochlaena is also provided. The new species are similar to D. sessilifolia Fraga and Davilla flexuosa A.St.-Hil. and have been identified in most herbaria as Davilla macrocarpa Eichler. In accordance with the criteria of the IUCN Red List of endangered plant species, D. coriacea and D. undulata are to be assessed as Endangered (EN) and Near Threatened (NT) respectively.

Studies in Neotropical Araliaceae. IV. Three New Species of Sciodaphyllum from the Eastern Andes of Central Peru

2020 ◽  
Vol 28 (2) ◽  
pp. 75-84
Author(s):  
M. Marcela Mora ◽  
Porter P. Lowry II ◽  
Gregory M. Plunkett
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Neotropical Species ◽  
Iucn Red List Categories ◽  
The Andes ◽  
Red List Categories ◽  
Three New Species ◽  
Near Threatened

Sciodaphyllum P. Browne (Araliaceae) has recently been resurrected to accommodate the majority of Neotropical species previously included in Schefflera J. R. Forst. & G. Forst. Recent field and herbarium studies have revealed many distinctive new species of Sciodaphyllum, including three from the eastern slopes of the Andes in central Peru, which are described and illustrated here: S. geniculatum M. M. Mora, Lowry & G. M. Plunkett, S. oxapampense G. M. Plunkett, Lowry & M. M. Mora, and S. rodolfoi Lowry, G. M. Plunkett & M. M. Mora. The conservation status of S. geniculatum is assessed as Vulnerable (VU) using the IUCN Red List categories and criteria, whereas both S. oxapampense and S. rodolfoi are assessed as Near Threatened (NT).

A new cauliflorous white-flowered species of Ouratea (Ochnaceae) from the Brazilian Atlantic Forest

Phytotaxa ◽  
2015 ◽  
Vol 167 (1) ◽  
pp. 119 ◽  
Author(s):  
CLAUDIO NICOLETTI DE FRAGA ◽  
MARIANA MACHADO SAAVEDRA
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Atlantic Forest ◽  
Central Region ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Endangered Plant ◽  
Brazilian Atlantic Forest ◽  
Single Locality

The new species Ouratea cauliflorais described, illustrated, and comments on its ecology, geographical distribution, and conservation status are provided. This species is morphologically similar to O. verticillata, but can be easily distinguished by its white flowers and the inflorescences cauliflorous or emerging from short and patent branches on the stem. The new species is endemic to a single locality in the central region of Espírito Santo, in the Brazilian Atlantic Forest, and according to the criteria of the IUCN Red List of endangered plant species, it is regarded as “vulnerable”.

A new species of Prepusa (Helieae, Gentianaceae) from the Brazilian Atlantic Forest, with an emended key for the genus

Phytotaxa ◽  
2014 ◽  
Vol 163 (5) ◽  
pp. 287
Author(s):  
Claudio Nicoletti de Fraga ◽  
ANDRÉ PAVIOTTI FONTANA ◽  
LUDOVIC JEAN CHARLES KOLLMANN
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Plant Species ◽  
Atlantic Forest ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Endangered Plant ◽  
Brazilian Atlantic Forest ◽  
A New Species

The new species Prepusa dibotrya from the Brazilian Atlantic Forest in Espírito Santo is described and illustrated, with comments on its ecology, geographical distribution, and conservation status. The new species is similar to P. viridiflora and must be considered “critically endangered” in accordance with the criteria of the IUCN Red List of endangered plant species.

scholarly journals Three new species of Tricalysia (Rubiaceae) from Atlantic Central Africa

2020 ◽  
Vol 153 (2) ◽  
pp. 257-266
Author(s):  
Olivier Lachenaud ◽  
Tariq Stévart ◽  
Bonaventure Sonké
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Central Africa ◽  
Iucn Red List ◽  
Equatorial Guinea ◽  
Strict Sense ◽  
Tropical Africa ◽  
Three New Species ◽  
Herbarium Collections ◽  
Near Threatened

Background and aims – The genus Tricalysia A.Rich. (Rubiaceae), regarded here in the strict sense (i.e., excluding Empogona Hook.f.), includes 77 species in tropical Africa, Madagascar and the Comoros. In the current paper, three new species from Atlantic Central Africa are described and illustrated; their conservation status is also assessed.Material and methods – This paper is based on a study of herbarium collections from BR, BRLU, K, LBV, P, WAG and YA. Normal practices of herbarium taxonomy have been applied. The conservation status assessments follow the IUCN Red List criteria.Results – Tricalysia lophocarpa O.Lachenaud & Sonké is endemic to Gabon and is best recognised by its fruits with 8–10 narrow longitudinal ribs. Tricalysia obovata O.Lachenaud & Sonké is endemic to Equatorial Guinea (Rio Muni) and may be recognised by its obovate leaves with rounded base, glabrous stems, and sessile flowers with included style and half-exserted anthers. Tricalysia wilksii O.Lachenaud & Sonké occurs in Gabon and southwestern Republic of Congo, and may be recognised by its glabrous stems and leaves, the latter with crypt domatia, its linear calyx teeth equalling or exceeding the tube in length, and its shortly pedicellate fruits. The three species are assessed respectively as Near-threatened (T. lophocarpa), Critically Endangered (T. obovata) and Vulnerable (T. wilksii).

scholarly journals Increasing accuracy: The advantage of using open access species occurrence database in the Red List assessment

2020 ◽  
Vol 21 (8) ◽  
Author(s):  
Iyan Robiansyah ◽  
Wita Wardani
Keyword(s):  
Open Access ◽  
Extinction Risk ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Suitable Habitat ◽  
Herbarium Specimens ◽  
Species Occurrence ◽  
Extent Of Occurrence ◽  
Area Of Occupancy

Abstract. Robiansyah I, Wardani W. 2020. Increasing accuracy: The advantage of using open access species occurrence database in the Red List assessment. Biodiversitas 21: 3658-3664. IUCN Red List is the most widely used instrument to assess and advise the extinction risk of a species. One of the criteria used in IUCN Red List is geographical range of the species assessed (criterion B) in the form of extent of occurrence (EOO) and/or area of occupancy (AOO). While this criterion is presumed to be the easiest to be completed as it is based mainly on species occurrence data, there are some assessments that failed to maximize freely available databases. Here, we reassessed the conservation status of Cibotium arachnoideum, a tree fern distributed in Sumatra and Borneo. This species was previously assessed by Praptosuwiryo (2020, Biodiversitas 21 (4): 1379-1384) which classified the species as Endangered (EN) under criteria B2ab(i,ii,iii); C2a(ii). Using additional data from herbarium specimens recorded in the Global Biodiversity Information Facility (GBIF) website and from peer-reviewed scientific papers, in the present paper we show that C. arachnoideum has a larger extent of occurrence (EOO) and area of occupancy (AOO), more locations and different conservation status compared to those in Praptosuwiryo (2020). Our results are supported by the predicted suitable habitat map of C. arachnoideum produced by MaxEnt modelling method. Based on our assessment, we propose the category of Vulnerable (VU) C2a(i) as the global conservation status for C. arachnoideum. Our study implies the advantage of using open access databases to increase the accuracy of extinction risk assessment under the IUCN Red List criteria in regions like Indonesia, where adequate taxonomical information is not always readily available.

scholarly journals A new species (Begonia giganticaulis) of Begoniaceae from southern Xizang (Tibet) of China

PhytoKeys ◽  
2021 ◽  
Vol 187 ◽  
pp. 189-205
Author(s):  
Dai-Ke Tian ◽  
Wen-Guang Wang ◽  
Li-Na Dong ◽  
Yan Xiao ◽  
Min-Min Zheng ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Conservation Status ◽  
Female Flower ◽  
Iucn Red List ◽  
Red List ◽  
Current Data ◽  
Iucn Red List Categories ◽  
Unique Shape ◽  
A New Species

Begonia giganticaulis, a huge new species in Begonia sect. Platycentrum of Begoniaceae from southern Xizang (Tibet) of China, is described. Morphologically, it is mostly similar to B. longifolia and B. acetosella, but clearly differs from the former mainly by its dioecious and taller plants, sparse hairs on abaxial veins, longer inflorescence, unique shape of fruits, and differs from the latter mainly by its late and longer flowering time, 6-tepals of female flower and 3-loculed ovary. The phylogenetic analyses also support the separation of the new species from other taxa. Based on the current data, its conservation status is assigned to Endangered (B2a) according to the IUCN Red List Categories and Criteria.

scholarly journals Justicia thailandica, a new species of Acanthaceae from Thailand

PhytoKeys ◽  
2019 ◽  
Vol 124 ◽  
pp. 11-22
Author(s):  
Yi Tong ◽  
Yunfei Deng
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Seed Morphology ◽  
Red List ◽  
Length Ratio ◽  
A New Species ◽  
Near Threatened

A new species of Justicia (Acanthaceae), J.thailandica, is described and illustrated from Thailand. The new species belongs to Justiciasect.Harnieria and is similar to J.quadrifaria and J.championii, but differs on account of the obviously densely white indumentum in the inflorescence bracts and calyx, ovate leaf blades with margin usually entire, spathulate inflorescence bracts and length ratio of calyx to mature capsule. It is assessed to be “Near threatened” (NE) according to IUCN Red List Category and Criteria. Pollen and seed morphology characters are also reported. Species of Justiciasect.Harnieria in Thailand are discussed and a key to the three recognized species is presented.

scholarly journals Chiococca grandiflora (Rubiaceae), a new species from Northern Mexico

PhytoKeys ◽  
2018 ◽  
Vol 98 ◽  
pp. 73-83 ◽  
Author(s):  
David H. Lorence ◽  
Thomas R. Van Devender ◽  
George M. Ferguson
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Iucn Red List ◽  
Red List ◽  
Northern Mexico ◽  
Iucn Red List Criteria ◽  
A New Species

The new species Chiococcagrandiflora Lorence & T.Van Devender from Sinaloa and Sonora, Mexico differs from its congeners by its larger, showy white flowers in compact cymes of 3–9, and infundibuliform corollas 16–20 mm long with tubes 13–17 mm long and lobes 3–3.5 mm long. Its distribution, habitat, and relationships are outlined. The conservation status for this species is estimated to be Endangered (EN) based on IUCN Red List Criteria.

scholarly journals Anemopaegma kawense (Bignoniaceae), a new species from the Kaw Mountain (French Guiana), with notes on related species and a key to the genus in the Guianas

2021 ◽  
Vol 154 (2) ◽  
pp. 296-306
Author(s):  
Olivier Lachenaud ◽  
Fabiana Firetti ◽  
Lúcia G. Lohmann
Keyword(s):  
New Species ◽  
French Guiana ◽  
Conservation Status ◽  
Iucn Red List ◽  
Herbarium Specimens ◽  
Similar Species ◽  
Centre Of Diversity ◽  
North Eastern ◽  
The Guianas ◽  
A New Species

Background and aims – The genus Anemopaegma (Bignoniaceae) includes around 47 species and has its centre of diversity in Brazil. Here, we describe and illustrate a new species from French Guiana, Anemopaegma kawense, and compare it to the two most similar species, A. foetidum and A. granvillei. We further assess the conservation status of all three species.Material and methods – Morphological descriptions are based on herbarium specimens deposited at BM, BR, CAY, INPA, K, MO, P, SPF, and U, and, in the case of the newly described species, also on field observations. The conservation status assessments follow the IUCN Red List criteria.Key results – Anemopaegma kawense differs from both A. foetidum and A. granvillei by its densely villose twigs, longitudinally plicate leaflets with secondary veins not or hardly prominent below, and tertiary veins impressed below. It is further separated from A. foetidum by the leaflets that are villose below and the calyx that is entirely pubescent outside. On the other hand, A. kawense differs from A. granvillei by the densely lepidote outer surface of the corolla, shorter petiolules, leaflets with midrib impressed above, shorter bracts and bracteoles, inflorescence peduncle exceeding the rachis, and pedicels densely puberulous, not lepidote or only sparsely so at the apex. This species is endemic to the Kaw Mountain in north-eastern French Guiana, where it grows in low stunted forest on laterite; it is assessed as Endangered according to the IUCN criteria. New descriptions are provided for A. granvillei, which is newly reported from Suriname, and for A. foetidum, which is newly reported from French Guiana; these two species are assessed as Endangered and Least Concern, respectively. Lectotypes are designated for A. maguirei, which is here synonymised with A. foetidum, and for A. umbellatum, another synonym of that species. A key to the 12 species of Anemopaegma occurring in the Guianas is presented.

A New Distinctive Species of Schizanthus (Solanaceae) and the Reinstatement of Schizanthus fallax

2021 ◽  
Vol 46 (2) ◽  
pp. 456-469
Author(s):  
Nicolás Lavandero ◽  
Javiera Chinga ◽  
Raquel Pinto ◽  
María Fernanda Pérez
Keyword(s):  
Conservation Status ◽  
Corolla Tube ◽  
Morphological Data ◽  
Herbarium Specimens ◽  
Northern Chile ◽  
Upper Lip ◽  
Lower Lip ◽  
Integrative Framework ◽  
Fresh Material ◽  
Rain Events

Abstract— A new Schizanthus species from northern Chile is described and illustrated. Schizanthus nutantiflorus was discovered based on recent collections made during unusual rain events in the Atacama Desert in 2015. The new species is distinguished morphologically from other Schizanthus species from northern Chile by its short corolla tube, with a distinct upper lip arrangement and colour, having the longest lower lip, and downward-facing flowers. Additionally, the reinstatement of Schizanthus fallax is proposed. By using both nDNA and cpDNA, phylogenetic relationships among all species of Schizanthus were investigated. Molecular and field observations, as well as an exhaustive morphological revision of fresh material and herbarium specimens, supports the segregation of Schizanthus with short corolla tubes from northern Chile into three species. We propose that, in order to fully understand both the taxonomy and evolution of Schizanthus, an integrative framework encompassing molecular, ecological, and morphological data should be carried out. Information on distribution, habitat, informal conservation status, as well as taxonomic notes and illustrations are provided. In addition, an updated key for the species of Schizanthus from northern Chile is given.

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