scholarly journals Morphometric and phylogenetic analyses of Serpentirhabdias viperidicus n. sp. (Nematoda: Rhabdiasidae) from the lancehead snake Bothrops moojeni Hoge, 1966 (Reptilia: Serpentes: Viperidae) in Brazil

2016 ◽  
Vol 91 (3) ◽  
pp. 360-370 ◽  
Author(s):  
D.H. Morais ◽  
A. Aguiar ◽  
M.I. Müller ◽  
R.B. Narciso ◽  
L.A.F. da Silva ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Neotropical Region ◽  
South American ◽  
Paulo State ◽  
Molecular Approaches ◽  
Molecular Phylogenetic ◽  
Bothrops Moojeni ◽  
A New Species

AbstractSerpentirhabdias viperidicus n. sp. (Nematoda: Rhabdiasidae) is described from the lungs of the ‘Brazilian lancehead’ Bothrops moojeni (Hoge, 1966) from the savannah in São Paulo State, Brazil. The new species is the eighth species of Serpentirhabdias described in the Neotropical region, and differs from other species mainly by a combination of characters: lips slightly notable, presence of fine striations at posterior ends, presence of two parallel lines with intercalated pores, a pore-shaped phasmid situated at the level of the anal aperture and another two in the posterior half of the tail. It is the first species of Serpentirhabdias reported in this snake host and the second species of this genus found parasitizing South American viperidian snakes. Molecular phylogenetic analysis using ribosomal (ITS and 28S partial) genes confirms Serpentirhabdias viperidicus n. sp. as a new species that clustered in the Serpentirhabdias clade, sister taxon to Serpentirhabdias fuscovenosa and Serpentirhabdias elaphe. This is the first description of Serpentirhabdias species from Brazil using molecular approaches and morphological characters to confirm the monophyly of this recent genus.

Leptolejeunea nigra (Lejeuneaceae), a new species with brownish black ocelli based upon morphology and DNA sequences

Phytotaxa ◽  
2019 ◽  
Vol 427 (1) ◽  
pp. 31-42
Author(s):  
LEI SHU ◽  
RUI-LIANG ZHU
Keyword(s):  
New Species ◽  
Molecular Phylogeny ◽  
Dna Sequences ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Time Span ◽  
Molecular Dating ◽  
Molecular Phylogenetic ◽  
Brownish Black ◽  
A New Species

Based on molecular phylogenetic analyses and morphological characters, a new species from Bangladesh, northern Vietnam, and southwestern China, Leptolejeunea nigra, is described. It is mostly similar to L. balansae but remarkable for having brownish black ocelli in its leaf lobes. In the molecular phylogeny, the samples of L. nigra are not nested within any clade and form an independent lineage. In particular, the molecular dating suggested that the divergence of L. nigra happened in time span of the formation of the Himalayas.

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.

Cheilanthes ecuadorensis: A New Species of Cheilanthes s. s. (Pteridaceae) from Northern South America

2021 ◽  
Vol 46 (2) ◽  
pp. 249-259
Author(s):  
Karla Sosa ◽  
Kathleen M. Pryer ◽  
Layne Huiet ◽  
George Yatskievych ◽  
Michael D. Windham
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
South American ◽  
South American Species ◽  
Ongoing Research ◽  
Species Discovery ◽  
Molecular Phylogenetic ◽  
Poorly Differentiated ◽  
Northern South America ◽  
A New Species

Abstract— Ongoing research on the taxonomically complex genus Cheilanthes (Pteridaceae; Cheilanthoideae) has resulted in the identification of a new species from Loja Province in Ecuador, Cheilanthes ecuadorensis, described and illustrated herein. Originally collected in 1988 and identified as C. cf. rufopunctata, C. ecuadorensis is clearly distinct from that species in having pubescent adaxial blade surfaces and narrow, poorly-differentiated false indusia (rather than the glabrous adaxial surfaces and wide false indusia of C. rufopunctata). Among the South American species currently included in Cheilanthes, C. ecuadorensis is superficially most similar to C. pilosa. However, our molecular phylogenetic analyses indicate that C. ecuadorensis is sister to C. micropteris, the morphologically disparate generitype of Cheilanthes. Here we examine the phylogenetic relationships, morphology, cytogenetics, and geography of these four South American Cheilanthes species in a study that, once again, highlights the importance of herbaria in the process of new species discovery.

Dentipellicula guyanensis sp. nov. (Hericiaceae, Basidiomycota) from French Guiana

Phytotaxa ◽  
2021 ◽  
Vol 478 (2) ◽  
pp. 261-267
Author(s):  
MENG ZHOU ◽  
JIA-JIA CHEN ◽  
JOSEF VLASÁK ◽  
YUAN YUAN
Keyword(s):  
New Species ◽  
French Guiana ◽  
Growth Habit ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Rdna Sequences ◽  
Molecular Phylogenetic ◽  
A New Species

Dentipellicula guyanensis, a new species of Hericiaceae, is described and illustrated based on morphological characters and supported by molecular phylogenetic analyses using ITS and nLSU rDNA sequences. D. guyanensis is characterized by an annual and resupinate growth habit, a monomitic hyphal structure with non-amyloid, non-dextrinoid and acyanophilous generative hyphae, the presence of gloeoplerous hyphae in hymenophoral trama, the presence of gloeocystidia, and rough basidiospores measuring as 2.8–3.1 × 1.9–2.1 µm. A key to accepted species of Dentipellicula is provided.

Pythium cedri sp. nov. (Pythiaceae, Pythiales) from southern China based on morphological and molecular characters

Phytotaxa ◽  
2017 ◽  
Vol 309 (2) ◽  
pp. 135 ◽  
Author(s):  
JIA-JIA CHEN ◽  
LI LÜ ◽  
WEN-WU YE ◽  
YUAN-CHAO WANG ◽  
XIAO-BO ZHENG
Keyword(s):  
New Species ◽  
Slow Growth ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Cedrus Deodara ◽  
Molecular Phylogenetic ◽  
Coi Sequences ◽  
A New Species ◽  
Molecular Characters

A new species of Pythiales: Pythium cedri, isolated from Cedrus deodara (Pinaceae) in Jiangsu Province of China is described and illustrated based on morphological characters and supported by molecular phylogenetic analyses using ITS+COI sequences. Pythium cedri belongs to Pythium clade D and is characterized by presence of hyphal swellings, toruloid sporangia, ornamented oogonia with blunt spines, monoclinous antheridia, plerotic or nearly plerotic oospores, and relatively slow growth (11–15 mm d–1). A key to accepted species of Pythium clade D is provided.

A new species of Rhabdias (Nematoda: Rhabdiasidae), a lung parasite of Pseudopaludicola pocoto (Anura: Leptodactylidae) from north-eastern Brazil: description and phylogenetic analyses

2020 ◽  
Vol 94 ◽  
Author(s):  
D.H. Morais ◽  
M.I. Müller ◽  
F.T.V. Melo ◽  
A. Aguiar ◽  
Y. Willkens ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Neotropical Region ◽  
South American ◽  
New Taxon ◽  
Eastern Brazil ◽  
North Eastern ◽  
Caatinga Biome ◽  
A New Species ◽  
New Discovery

Abstract Rhabdias pocoto n. sp. is herein described from the lungs of the swamp frog Pseudopaludicola pocoto Magalhães, Loebmann, Nogueira, Kokubum, Baptista, Haddad & Garda, 2014, from the Caatinga biome in the state of Ceará, in north-eastern Brazil. The new species is characterized by a body that dilates posteriorly, six small lips (protuberances) and two rounded lateral expansions of cuticular inflation on the anterior end, each containing an amorphous gland-like structure inside and a short and conical tail. Additionally, molecular analysis and comparison of the partial mitochondrial cytochrome c oxidase I sequence of R. pocoto n. sp. revealed genetic divergence between the new species and the sequences of Rhabdias spp. previously deposited in GenBank. Phylogenetic analysis grouped the new taxon into the R. pseudosphaerocephala species complex + R. glaurungi clade. The new discovery represents the 19th species of Rhabdias spp. described in the Neotropical region, the ninth in Brazil and the first species of Rhabdias found parasitizing South American frogs of the genus Pseudopaludicola, as well as the first Caatinga biome species of Rhabdias.

scholarly journals Thesium nautimontanum, a new species of Thesiaceae (Santalales) from South Africa

PhytoKeys ◽  
2018 ◽  
Vol 109 ◽  
pp. 41-51 ◽  
Author(s):  
Miguel Angel García ◽  
Daniel L. Nickrent ◽  
Ladislav Mucina
Keyword(s):  
South Africa ◽  
New Species ◽  
Phylogenetic Analyses ◽  
South American ◽  
Western Cape ◽  
Western Cape Province ◽  
Molecular Phylogenetic ◽  
Internal Transcribed Spacer Sequences ◽  
Conservation Concern ◽  
A New Species

ThesiumnautimontanumM.A. García, Nickrent & Mucina, a new species from the Matroosberg Mt. of Western Cape Province of South Africa, is described and illustrated. This species shows several morphological features unusual for the genus including stem sympodial branching, indeterminate spicate inflorescences subtended by numerous bracts and fleshy, non-trichome tissue lining the inside of the corolla lobes. Molecular phylogenetic analyses using nuclear ribosomal internal transcribed spacer sequences place this taxon as sister to all African, Madagascan and South AmericanThesiumspecies. Given that only two proximal populations are known, this species is of conservation concern.

scholarly journals A new species of the Asian leaf litter toad genus Leptobrachella Smith, 1925 (Anura, Megophryidae) from northwest Guizhou Province, China

ZooKeys ◽  
2021 ◽  
Vol 1021 ◽  
pp. 81-107
Author(s):  
Yan-Lin Cheng ◽  
Sheng-Chao Shi ◽  
Jiaqi Li ◽  
Jing Liu ◽  
Shi-Ze Li ◽  
...  
Keyword(s):  
New Species ◽  
Leaf Litter ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
The Body ◽  
Guizhou Province ◽  
Adult Males ◽  
Dorsal Skin ◽  
Molecular Phylogenetic ◽  
A New Species

A new species of the Asian leaf litter toad genus Leptobrachella is described from Guizhou Province, China. Molecular phylogenetic analyses support the new species as an independent lineage deeply nested in the Leptobrachella clade. The new species is distinguished from its congeners by a combination of the following morphological characters: body size medium (SVL 29.7–31.2 mm in five adult males); dorsal skin shagreened, some of the granules forming longitudinal short skin ridges; tympanum distinctly discernible, slightly concave; supra-axillary, femoral, pectoral and ventrolateral glands distinctly visible; absence of webbing and lateral fringes on fingers; toes with narrow lateral fringes but without webbing; heels overlapping when thighs are positioned at right angles to the body; tibia-tarsal articulation reaching the middle of eye when leg stretched forward. The discovery highlighted the underestimated species diversity in the Leptobrachella toads in southwestern China.

Discovery of the westernmost population of the genus Ansonia Stoliczka (Anura, Bufonidae) with the description of a new species from the Shan Plateau of eastern Myanmar

Zootaxa ◽  
2019 ◽  
Vol 4656 (3) ◽  
pp. 545-571 ◽  
Author(s):  
EVAN S. H. QUAH ◽  
L. LEE GRISMER ◽  
PERRY L. JR. WOOD ◽  
MYINT KYAW THURA ◽  
JAMIE R. OAKS ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Analyses ◽  
Sequence Divergence ◽  
Morphological Characters ◽  
Hind Limbs ◽  
Molecular Phylogenetic ◽  
Males And Females ◽  
Spot 5 ◽  
A New Species ◽  
Made In

A new species of Ansonia is described from the Shan Plateau of Myanmar based on an integrative taxonomic analysis that differentiates it from all other congeners. Molecular phylogenetic analyses based on the mitochondrial genes 12S and 16S rRNA and tRNA-val recover A. kyaiktiyoensis sp. nov. as the sister species to A. inthanon from Thailand but differs from it and other congeners by at least a 5.0% sequence divergence. It is further differentiated by the following combination of morphological characters: (1) maximum SVL 24 mm in males and females; (2) first finger shorter than second; (3) absence of interorbital and tarsal ridges; (4) presence of light-coloured interscapular spot; (5) presence of yellow rictal tubercle; (6) absence of wide, light-coloured patch below eye; (7) presence of large, discrete, bright-yellow submandibular spots along the underside of lower jaw; (8) iris yellow-gold; (9) presence of markings on the snout consisting of streaks below the eye to the lip, and on the canthus rostralis to the nostril; (10) dorsum grey-brown with orange-beige spots, a dark-brown X-shaped marking on the back surrounding the interscapular spot, and dark-coloured markings on rump; (11) fore- and hind limbs with orange-beige cross-bars; and (12) venter light-gray with yellow spotting, especially near flanks and underside of hind limbs. Ansonia kyaiktiyoensis sp. nov. is the westernmost known record for the genus and the only species west of the Salween Basin. Its discovery echoes the increasing number of herpetological discoveries being made in upland regions fringing the Ayeyarwady and Salween Basins. 

Phytopythium nanjingense sp. nov. (Pythiaceae, Peronosporales) from southern China based on morphological and molecular characters

Phytotaxa ◽  
2019 ◽  
Vol 403 (3) ◽  
pp. 239
Author(s):  
JIA-JIA CHEN ◽  
HUI FENG ◽  
YUAN-CHAO WANG ◽  
XIAO-BO ZHENG
Keyword(s):  
New Species ◽  
Southern China ◽  
Phylogenetic Analyses ◽  
Morphological Characters ◽  
Similar Species ◽  
Mtdna Sequences ◽  
Molecular Phylogenetic ◽  
Thin Walled ◽  
A New Species ◽  
Molecular Characters

A new species of Peronosporales: Phytopythium nanjingense, isolated from the lake water of Nanjing in Jiangsu Province of China is described and illustrated based on morphological characters and supported by molecular phylogenetic analyses using ITS rDNA and Cox1 and Cox2 mtDNA sequences. Phytopythium nanjingense is heterothallic and characterized by aquatic habitat, ellipsoid, mostly obpyriform to ovoid-obpyriform, internally or internally nested proliferating sporangia with conspicuous apical papillae, smooth oogonia, hypogynous antheridia, filamentous antheridial cells, and plerotic or nearly plerotic and thin-walled oospores (0.5–1.6 µm). Differences between the new species and phylogenetically related and morphologically similar species are discussed.

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