scholarly journals Krefftascaris (Nematoda, Ascaridoidea) from Australian Side-Necked Turtles with Description of Krefftascaris Sharpiloi SP. N. from Chelodina Rugosa

2010 ◽  
Vol 44 (1) ◽  
pp. e-1-e-11 ◽  
Author(s):  
V. Tkach ◽  
Yu. Kuzmin ◽  
S. Snyder

Krefftascaris(Nematoda, Ascaridoidea) from Australian Side-Necked Turtles with Description ofKrefftascaris SharpiloiSP. N. fromChelodina RugosaPreviously known records of ascaridoid nematodesKrefftascarisSprent, 1980 are summarized and new records of the genus reported.Krefftascaris sharpiloiTkach, Kuzmin et Snyder, sp. n. is described from specimens found in the stomach of the northern snake-necked turtleChelodina rugosacollected from two localities in Northern Territory, Australia. The new species differs from the only previously knownKrefftascarisspecies,K. parmenteriSprent, 1980, by the presence of thickened and bifurcated anterior edges of the lateral cuticular alae and a difference in the relative distance from the anterior end to the nerve ring which is 1.5 to 2 times greater inK. parmenteri.Comparison of approximately 2.100 bases of ribosomal DNA sequences This study contains first reports ofKrefftascarisinChelodina rugosa, Chelodina burrungandjii, Chelodina canniandEmydura tanybaragaand the first records of this genus in the Northern Territory, Queensland and Western Australia. Molecular phylogenetic analysis based on sequences of nuclear small ribosomal subunit gene has demonstrated close affinities betweenKrefftascarisandHeterocheilus, the type genus of the Heterocheilidae and Heterocheilinae. Parasitism of several species and genera of Heterocheilidae in crocodiles allows us to hypothesize thatKrefftascarismay have been acquired by turtles from crocodilians.

Phytotaxa ◽  
2020 ◽  
Vol 475 (2) ◽  
pp. 79-90
Author(s):  
RICARDO VALENZUELA ◽  
TANIA RAYMUNDO ◽  
CONY DECOCK ◽  
MA BLANCA NIEVES LARA-CHÁVEZ ◽  
ISOLDA LUNA-VEGA ◽  
...  

Coltriciella multipileata is described here as a new species from Mexico. The species grow on soils in open areas at the vicinity of living trees of Pinus patula, and its known only from the Parque Recreativo Los Colomos, Jalisco. The phylogenetic analysis based on partial nuclear 28S ribosomal DNA sequences, recovered Coltriciella multipileata as sister group with a specimen reported as ectomycorrhizal, and closely related with other two species that are considered saprophitic. According with our preliminary analysis of character states reconstruction, the ectomycorrhizal condition appeared early in the Coltriciella clade, with a high rate of transitions between ectomycorrhizal and saprophitic conditions. A key for species similar to Coltriciella multipileata is presented.


PhytoKeys ◽  
2021 ◽  
Vol 183 ◽  
pp. 21-35
Author(s):  
Neng Wei ◽  
Fredrick Munyao Mutie ◽  
Geoffrey Mwachala ◽  
Olwen M. Grace ◽  
Guang-Wan Hu ◽  
...  

Euphorbia mbuinzauensis, a succulent new species of the Synadenium group in Euphorbiaceae from Makueni County, Kenya, is described and illustrated. Morphologically, it is most similar to E. pseudomollis, but differs mainly by its shrubby habit (up to 4 m), abaxial leaves surfaces with densely stellate hairs, 2–4-forked cymes, smaller bracts (ca. 2.5 × 3.0 mm), smaller cyathia (6 mm wide), crimson glands without narrow smooth margin, smaller fruits (ca. 8 × 7 mm) and ovoid seeds (ca. 1.8 × 2.2 mm). Furthermore, we performed a molecular phylogenetic analysis of the Synadenium group in Euphorbia sect. Monadenium, based on complete nuclear ribosomal DNA (nrDNA) datasets. This phylogenetic inference also supports it to be a distinct species. The new species is assessed as Endangered using the IUCN criteria.


Phytotaxa ◽  
2018 ◽  
Vol 361 (3) ◽  
pp. 294 ◽  
Author(s):  
ZHI-ZHONG LI ◽  
KUO LIAO ◽  
CHUN-YU ZOU ◽  
YAN LIU ◽  
GUANG-WAN HU ◽  
...  

Ottelia guanyangensis (Hydrocharitaceae), a new species from southwestern China, is described and illustrated. This aquatic plant is a perennial, submersed herb with bisexual flowers and a hexagonal-cylindric fruit. It is related to O. acuminata var. songmingensis and O. balansae but differs from these two taxa by its bisexual flowers, spathe with 2–5 flowers, trinerved leaf with obvious cross veins, and a winged, hexagonal-cylindric fruit. Molecular phylogenetic analysis based on nuclear DNA internal transcribed spacer (ITS) sequences and three chloroplast DNA sequences (rbcL, trnK5’ intron and trnS-trnG) resolves O. guanyangensis as a distinct clade, which further justifies its recognition as a new species.


MycoKeys ◽  
2018 ◽  
Vol 37 ◽  
pp. 73-92 ◽  
Author(s):  
Md. Iqbal Hosen ◽  
Tahir Mehmood ◽  
Kanad Das ◽  
Linas V. Kudzma ◽  
R. P. Bhatt

Amanitatullossiana, a new species of Amanita [subgenus Lepidella] section Lepidella from India is described. The species is characterised by its ash grey to brownish-grey pileus covered with dark grey to greyish-black universal veil remnants, the upper part of its rooting stipe base covered by several rows of recurved scales, broadly ellipsoid to ellipsoid basidiospores, absence of basidial clamp connections and pileal remnants of universal veil comprising abundant, disordered inflated cells intermixed with scattered filamentous hyphae. Molecular phylogenetic analysis and morphology both support the association of A.tullossiana with species of Bas’ stirps Cinereoconia – A.cinereoconia and A.griseoverrucosa. Two species, A.griseoverrucosa and A.virgineoides are reported here as new records for India.


Phytotaxa ◽  
2018 ◽  
Vol 348 (4) ◽  
pp. 279 ◽  
Author(s):  
ZIA ULLAH ◽  
SANA JABEEN ◽  
HABIB AHMAD ◽  
ABDUL NASIR KHALID

Inocybe pakistanensis is described and illustrated as a new species based on morphological characters and molecular phylogenetic analysis of nuclear ribosomal DNA including the internal transcribed spacer (ITS) regions along with larger subunit (LSU). The distinctive basidiomata have a highly rimose and fibrillose golden brown pileus with a reddish brown, prominent umbo; ellipsoid to amygdaliform, slightly phasoeliform smooth basidiospores; and clamped septa in all the tissues. Molecular phylogenetic analysis supports the placement of I. pakistanensis in section Rimosae s. str.


Mycotaxon ◽  
2020 ◽  
Vol 135 (1) ◽  
pp. 203-212
Author(s):  
Malka Saba ◽  
Junaid Khan ◽  
Samina Sarwar ◽  
Hassan Sher ◽  
Abdul Nasir Khalid

Morphological and phylogenetic analyses were conducted to identify Gymnopus species collected in Pakistan during 2013–14. Phylogenetic analysis was performed using internal transcribed spacer region (ITS) of ribosomal DNA sequences. Among the collected taxa, we identified Gymnopus barbipes and G. dysodes, represent new records for Pakistan. Their detailed descriptions and illustrations are also provided.


Botany ◽  
2017 ◽  
Vol 95 (6) ◽  
pp. 567-577 ◽  
Author(s):  
Pimwadee Pornpongrungrueng ◽  
John A.N. Parnell ◽  
Trevor R. Hodkinson ◽  
Pranom Chantaranothai

Phyllanthus kaweesakii Pornp., Chantar. & J.Parn. sp. nov. is newly described from the limestone mountain ridges in the northeast of Thailand. Comparison of morphology, anatomy, pollen morphology, and DNA sequences of this species with the most similar existing species P. mirabilis Müll.Arg. was undertaken. The results indicated that the two taxa are different in morphology, especially habit, stem base, and inflorescence, but that their pollen morphology and anatomy are similar. The molecular phylogenetic analysis, based on sequences of the plastid matK and nuclear ribosomal ITS regions, supported separation of the two taxa. This new species is described and illustrated, and its conservation status is discussed.


MycoKeys ◽  
2019 ◽  
Vol 60 ◽  
pp. 1-15
Author(s):  
Tu Lv ◽  
Cheng-Lin Hou ◽  
Peter R. Johnston

Triblidiaceae (Rhytismatales) currently consists of two genera: Triblidium and Huangshania. Triblidium is the type genus and is characterised by melanized apothecia that occur scattered or in small clusters on the substratum, cleistohymenial (opening in the mesohymenial phase), inamyloid thin-walled asci and hyaline muriform ascospores. Before this study, only the type species, Triblidium caliciiforme, had DNA sequences in the NCBI GenBank. In this study, six specimens of Triblidium were collected from China and France and new ITS, mtSSU, LSU and RPB2 sequences were generated. Our molecular phylogenetic analysis and morphological study demonstrated three new species of Triblidium, which are formally described here: T. hubeiense, T. rostriforme and T. yunnanense. Additionally, our results indicated that Huangshania that was considered to be distinct from Triblidium because of its elongated, transversely-septate ascospores, is congeneric with Triblidium. Therefore, we have placed Huangshania in synonymy under Triblidium, rendering Triblidiaceae a monotypic family.


Phytotaxa ◽  
2015 ◽  
Vol 213 (3) ◽  
pp. 159 ◽  
Author(s):  
Yousheng Chen ◽  
Qian Yuan

Twenty-six new species of Saussurea (Asteraceae, Cardueae) from the Qinghai-Tibetan Plateau and adjacent regions are described and illustrated. Our molecular phylogenetic analysis based on the nuclear ribosomal DNA internal transcribed spacer (ITS) and two chloroplast DNA fragments (trnL-F and psbA-trnH) has shown that most of the new species are well recognized in the molecular tree, with their taxonomic affinities also largely revealed.


2020 ◽  
pp. 1-37
Author(s):  
Markéta Kirstová ◽  
Robin Kundrata ◽  
Petr Kočárek

Abstract We present herein the first phylogenetic analysis of the genus Chelidura and the taxonomic revision of the genus Chelidurella, stat. restit., based on DNA sequences. The results confirm the generic status of Chelidurella Verhoeff, 1902 and Mesochelidura Verhoeff, 1902, and they are removed from the synonymy with Chelidura and reinstated as valid genera. Many individual Chelidurella species are defined based on the combination of a few variable characters on the pygidium and forceps, and the systematics and phylogeny of this genus are unclear. The validity of most of the species is revisited here by molecular phylogenetic analyses, and individual morphological characters are evaluated for their relevance in the identification of all described species. We describe two new species to science, Chelidurella galvagnii Kirstová & Kočárek, sp. nov. from Austria, and C. pseudovignai Kočárek & Kirstová, sp. nov. from Italy and Austria; two species, C. guentheri Galvagni, 1994 and C. tatrica Chládek, 2017 are newly synonymized. Critical diagnostic characters are illustrated, and an identification key for males of Chelidurella is provided.


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