scholarly journals Lasianthus ranongensis (Rubiaceae), a new species from Andaman tropical rainforest Thailand

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12320
Author(s):  
Tiwtawat Napiroon ◽  
Aroon Sinbumroong ◽  
Manop Poopath
Keyword(s):  
New Species ◽  
Leaf Blade ◽  
Tropical Rainforest ◽  
Conservation Status ◽  
Internal Surface ◽  
New Taxon ◽  
Line Drawings ◽  
Microscope Images ◽  
Stereo Microscope ◽  
A New Species

We describe Lasianthus ranongensis Sinbumr. & Napiroon as a new species in the genus Lasianthus. The new taxon is intensively discussed through taxonomic affinities and information on its habitat, distribution and conservation status is provided. Moreover, line drawings and stereo microscope images of important fertile organs are demonstrated. The new species is morphologically similar to L. stipularis but differs in its having flattened branches (vs. terete), leaf blade elliptic-oblong shape of 15.0–20.0 × 4.0–6.0 cm (vs. oblanceolate-oblong 12.0–16.0 × 3.0–5.5 cm), 9–12 pairs of veins (vs. 9–10 pairs), stipule 5–7 mm long, half covering cymes (vs. 10–12.5 mm long, entirely covering cymes), four or five bracts narrowly lanceolate, 2.5–3.0 mm long (vs. bracts numerous, broadly triangular, 10–15 mm), flowers with cupular calyx (vs. with campanulate calyx), corolla villous on internal surface, and six or seven lobed (vs. pubescent on internal surface and four lobed) and drupes with five pyrenes (vs. with four pyrenes). It is also similar to L. pseudo-stipularis, but from which it is obviously distinguished by its stipule half covers cymes, secondary veins have 9–12 pairs of secondary veins, cupular calyx shape, six or seven lobed corolla, and drupe with five pyrenes, whereas L. pseudo-stipularis has stipule entirely covering cymes, 7–8 pairs of secondary veins, obconic calyx, four lobed corolla, and drupe with four pyrenes.

scholarly journals A new species of Xyliphius, a rarely sampled banjo catfish (Siluriformes: Aspredinidae) from the rio Tocantins-Araguaia system

2010 ◽  
Vol 8 (1) ◽  
pp. 105-112 ◽  
Author(s):  
Carlos A Figueiredo ◽  
Marcelo R Britto
Keyword(s):  
New Species ◽  
Conservation Status ◽  
River System ◽  
Character State ◽  
New Taxon ◽  
Posterior Border ◽  
Lower Lip ◽  
Araguaia River ◽  
State Variation ◽  
A New Species

Xyliphius anachoretes, a new species of aspredinid catfish is described from the Tocantins-Araguaia River system. Xyliphius anachoretes is diagnosed by the presence of six developed retrorse serrae on posterior border of pectoral-fin spine, presence of papillae on the lower lip bearing minute branches, and only two dorsal procurrent rays. Comments about the informativeness of character-state variation among Xyliphius species and aspredinid related genera are furnished. Also, a brief discussion about conservation status of the new taxon is made.

scholarly journals A new species of Coccoloba P. Browne (Polygonaceae) from the Brazilian Amazon with exceptionally large leaves

2019 ◽  
Vol 49 (4) ◽  
pp. 324-329 ◽  
Author(s):  
Efigenia de MELO ◽  
Carlos Alberto CID FERREIRA ◽  
Rogério GRIBEL
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Natural Habitat ◽  
Morphological Characteristics ◽  
Brazilian Amazon ◽  
Cultivated Plants ◽  
New Taxon ◽  
Madeira River ◽  
Individual Trees ◽  
A New Species

ABSTRACT We describe and illustrate a new species of Coccoloba (Polygonaceae), named Coccoloba gigantifolia, from the Brazilian Amazon. It resembles Coccoloba mollis Casar, but differs from the latter species by its much larger leaves in the fertile branches. The species has only been recorded in the Madeira River basin, in the states of Amazonas and Rondônia, in the central and southwestern Brazilian Amazon. The description was based on herbarium material, cultivated plants, and individual trees in their natural habitat. We provide illustrations, photographs, and an identification key with morphological characteristics that distinguish the new taxon from the other two related taxa of the Coccoloba sect. Paniculatae, as well as comments on the geographic distribution and conservation status of the species.

scholarly journals Aristolochia quiricoana (Aristolochiaceae), a new species from southern Costa Rica

2021 ◽  
Author(s):  
José Esteban Jiménez ◽  
Marco Cedeño-Fonseca ◽  
Mario A. Blanco
Keyword(s):  
New Species ◽  
Costa Rica ◽  
Buenos Aires ◽  
Conservation Status ◽  
Similar Species ◽  
New Taxon ◽  
Botanical Exploration ◽  
Floral Color ◽  
Morphological Distinction ◽  
A New Species

Background and Aims: Aristolochia is the largest genus in Aristolochiaceae and is widely distributed in the world. A recent synopsis of Aristolochia in Costa Rica recognized 19 species; nevertheless, recent botanical exploration in southwestern Costa Rica has revealed yet another new species of this genus. Methods: The new species resulted from fieldwork in Buenos Aires, Puntarenas Province. Specimens from several herbaria were examined, as well as the type material of the most morphologically similar species. Comments about its distribution, habitat, phenology, conservation status and morphological distinction from related species are provided.Key results: Aristolochia quiricoana, a member of Aristolochia series Thyrsicae, is described and illustrated from the southern Pacific region of Costa Rica, where it is apparently endemic. It is similar to A. ornithorhyncha, from which it is distinguished by its shorter pedicels, wider, oblong perigone limbs with a shorter appendix, and a different floral color pattern.Conclusions: The new taxon described here represents the 22nd species documented in Aristolochia series Thyrsicae, as well as the 20th species of the genus from Costa Rica.

Melanoleuca kashmirensis sp. nov. in subg. Urticocystis from Pakistan

Phytotaxa ◽  
2020 ◽  
Vol 434 (1) ◽  
pp. 89-100
Author(s):  
ZIA ULLAH ◽  
RUBAB KHURSHED ◽  
MUHAMMAD BINYAMIN KHAN ◽  
ISRAR AHMAD ◽  
SANA JABEEN ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Morphological Features ◽  
New Taxon ◽  
Line Drawings ◽  
Phylogenetic Data ◽  
Molecular Phylogenetic ◽  
A New Species ◽  
Molecular Phylogenetic Data

During this investigation, a new species of Melanoleuca subg. Urticocystis with urticiform cheilocystidia is proposed. The identification is based on morphological characters and molecular phylogenetic analyses using ITS and 28S sequences. A comparison of the morphological features and molecular phylogenetic data with the taxa of subg. Urticocystis confirms the identity of the species as a new taxon. The detailed descriptions, line drawings and phylogenetic results are given.

A new species from the temporary ponds of southwest Portugal: Helosciadium milfontinum

Phytotaxa ◽  
2020 ◽  
Vol 456 (1) ◽  
pp. 49-62
Author(s):  
EDUARDO CIRES ◽  
CARLA PINTO-CRUZ ◽  
HERMINIO S. NAVA ◽  
JOSÉ ANTONIO FERNÁNDEZ PRIETO
Keyword(s):  
New Species ◽  
Molecular Analysis ◽  
Conservation Status ◽  
Morphological Characters ◽  
Internal Transcribed Spacers ◽  
Temporary Ponds ◽  
New Taxon ◽  
Taxonomic Relationships ◽  
Threatened Plant ◽  
A New Species

The genus Helosciadium has six species of which three have been identified in Portugal: H. nodiflorum, frequent and abundant in much of the territory, and H. inundatum and H. repens, with a scattered distribution in Portugal. In the present study, a new species, Helosciadium milfontinum, a seriously threatened plant endemic, rare and scarce that grows in the temporary ponds of the Vicentinan Coastal District is described and illustrated. Morphological characters and molecular analysis of nuclear internal transcribed spacers (ITS) and plastid regions (matK, rps16-trnK and trnL-F) confirm the existence of this new taxon. Conservation status and taxonomic relationships of the new species are examined.

A new species of Ichnanthus (Poaceae, Paspaleae) endemic to Southern Minas Gerais, Brazil

Phytotaxa ◽  
2013 ◽  
Vol 104 (1) ◽  
pp. 21 ◽  
Author(s):  
CHRISTIAN DA SILVA ◽  
FABRÍCIO MOREIRA FERREIRA ◽  
PEDRO LAGE VIANA ◽  
REYJANE PATRÍCIA DE OLIVEIRA
Keyword(s):  
Life History ◽  
New Species ◽  
Conservation Status ◽  
Minas Gerais ◽  
Sem Analysis ◽  
Southeastern Brazil ◽  
New Taxon ◽  
Cloud Forests ◽  
A New Species

Ichnanthus adpressus, a new species of Poaceae regarded as endemic to cloud forests of two areas in Southern Minas Gerais, Southeastern Brazil, is described and illustrated. Morphological similarities between the new taxon and other species of Ichnanthus are discussed. SEM analysis of the upper anthecium in this new species reveales features not yet described for this genus. Comments about phenology, habitat, life history, distribution and conservation status are given.

Diospyros microcalyx (Ebenaceae), a new species from limestone areas in Guangxi, China

Phytotaxa ◽  
2017 ◽  
Vol 316 (1) ◽  
pp. 91 ◽  
Author(s):  
DONG-XIN NONG ◽  
YU-DE PENG ◽  
XUE-YAN HUANG ◽  
LI-YING YU
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Similar Species ◽  
Line Drawings ◽  
A New Species

Diospyros microcalyx, a rare new species of Diospyros (Ebenaceae) from the southwest of Guangxi, China is described and illustrated. It is unique in having small calyx lobes, very large fruits 6–8(–10) cm in diameter without persistent fruiting calyx, and seeds with longitudinal grooves on the surface. A detailed description, along with line drawings, photographs, distribution, habitat and ecology, conservation status as well as a comparison to morphologically similar species is provided.

scholarly journals Taxonomic studies on the genus Isotrema (Aristolochiaceae) from China: I. I. cangshanense, a new species from Yunnan

PhytoKeys ◽  
2019 ◽  
Vol 134 ◽  
pp. 115-124 ◽  
Author(s):  
Xin Xin Zhu ◽  
Hai Lei Zheng ◽  
Jun Wang ◽  
Yong Qian Gao ◽  
Jin Shuang Ma
Keyword(s):  
New Species ◽  
Iucn Red List ◽  
Red List ◽  
Similar Species ◽  
New Taxon ◽  
Line Drawings ◽  
Western Yunnan ◽  
Iucn Red List Criteria ◽  
Taxonomic Studies ◽  
A New Species

Isotrema cangshanense X.X.Zhu, H.L.Zheng & J.S.Ma, a new species from western Yunnan, China, is described and illustrated here. It is similar to I. utriforme, I. forrestianum, I. cucurbitoides and I. obliquum The major differences between them are outlined and discussed. A detailed description, along with line drawings, photographs, habitat and distribution, as well as a comparison to morphologically similar species, is also provided. Meanwhile, the new taxon is assessed as Vulnerable (VU D2), according to the IUCN Red List criteria.

Oreocharis brachypodus (Gesneriaceae), a new taxon from Guizhou, China

Phytotaxa ◽  
2015 ◽  
Vol 204 (4) ◽  
pp. 296
Author(s):  
Li JiaMei ◽  
LI ZHI-MING
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Conservation Status ◽  
New Taxon ◽  
A New Species

Oreocharis brachypodus is described and illustrated as a new species from Guizhou, China. The new species is similar to Oreocharis villosa. However, the new species is readily distinguished from the latter by cymes not branched, 1–4-flowered, larger and pronounced gibbous corolla (2.2–2.5 cm long), ovary ca. 1 cm long, with 4 ribs prominent, style ca. 0.7 cm long, and thecae confluent. Comments on affinities, geographical distribution, ecology, phenology and conservation status of the new species are also provided.

Acianthera bilobulata (Orchidaceae: Pleurothallidinae), a new species from Southwestern Ecuador

Phytotaxa ◽  
2021 ◽  
Vol 490 (2) ◽  
pp. 159-171
Author(s):  
BOSCO JAVIER ZAMBRANO ROMERO ◽  
RODOLFO SOLANO
Keyword(s):  
New Species ◽  
Conservation Status ◽  
Similar Species ◽  
New Taxon ◽  
A New Species

Acianthera bilobulata is described and illustrated as new species. Information concerning distribution, habitat, phenology, and conservation status are provided. The new taxon is compared with the most similar species A. pubescens, from which it differs by its elliptic-lanceolate leaves, yellow-cream flowers suffused with red-purple, acute, marginally erose petals, and an oblong, obtuse, marginally entire lip with oblong, rounded lateral lobes. Furthermore, A. bilobulata is compared with other three morphologically similar species, A. breedlovei, A. henrici, and A. majakoluckae.

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