A new species of Micarea (Pilocarpaceae) from Madeira growing on Usnea

2014 ◽  
Vol 46 (3) ◽  
pp. 295-301 ◽  
Author(s):  
Pieter P. G. VAN DEN BOOM ◽  
Damien ERTZ

AbstractThe new species Micarea usneae is described from Madeira. It has been found at two localities where it grew on epiphytic Usnea thalli. Micarea usneae is distinguished by a very thin pale brownish thallus, pallid to greyish black or bluish subglobose apothecia of 0·1–0·3 mm diameter, very narrow (1·5–2·5 µm) ascospores, black pycnidia and strongly curved to sigmoid macroconidia. Phylogenetic analyses using mtSSU sequences place the new species in the Micarea peliocarpa group. Catillaria usneicola and Cladonia parasitica are recorded for the first time from Madeira. A key to the lichenicolous species on Usnea in Macaronesia is provided.

Phytotaxa ◽  
2018 ◽  
Vol 334 (2) ◽  
pp. 183 ◽  
Author(s):  
Fatima El-Houaria ZITOUNI-HAOUAR ◽  
JUAN RAMÓN CARLAVILLA ◽  
GABRIEL MORENO ◽  
JOSÉ LUIS MANJÓN ◽  
ZOHRA FORTAS

Morphological and phylogenetic analyses of large ribosomal subunit (28S rDNA) and internal transcribed spacer (ITS rDNA) of Terfezia samples collected from several bioclimatic zones in Algeria and Spain revealed the presence of six distinct Terfezia species: T. arenaria, T. boudieri, T. claveryi; T. eliocrocae (reported here for the first time from North Africa), T. olbiensis, and a new species, T. crassiverrucosa sp. nov., proposed and described here, characterized by its phylogenetic position and unique combination of morphological characters. A discussion on the unresolved problems in the taxonomy of the spiny-spored Terfezia species is conducted after the present results.


Zootaxa ◽  
2021 ◽  
Vol 5071 (3) ◽  
pp. 326-348
Author(s):  
MARC MASSA ◽  
CARLES RIBERA

The aim of this paper is to describe a new species of the genus Loxosceles Heineken & Lowe, 1832 from Morocco, Loxosceles imazighen sp. n., and to describe for the first time a female of Loxoxceles mrazig Ribera & Planas, 2009 from Tunisia. Both species live in xeric and desert environments and are located in southern Atlas Range. Molecular phylogenetic analyses, using mitochondrial (cox1, 16S) and nuclear (H3, 28S) markers, revel that these species are closely related and that they constitute a separate evolutionary lineage of L. rufescens (Dufour, 1820) and of the set of endemic species of the Canary Islands. L. imazighen sp. n. differs from L. mrazig, the closest species morphologically and geographically, in the shapes and proportions of the male palpal tibia and the shapes and dispositions of the female seminal receptacles. In addition, L. mrazig females show morphological variability in their genitalia, mainly in the inner and outer lobes. Although that variability cannot be associated with different populations, since it also appears within individual populations, and is not related to genetic or geographic distances.  


Zootaxa ◽  
2019 ◽  
Vol 4551 (5) ◽  
pp. 556 ◽  
Author(s):  
TATIANA KORSHUNOVA ◽  
RAHUL MEHROTRA ◽  
SPENCER ARNOLD ◽  
KENNET LUNDIN ◽  
BERNARD PICTON ◽  
...  

An integrative molecular and morphological study is presented for the family Unidentiidae. Molecular phylogenetic analyses were conducted with the inclusion of all previous and newly obtained molecular data for the family Unidentiidae Millen & Hermosillo 2012. A new species of the genus Unidentia Millen & Hermosillo 2012, U. aliciae sp. nov., is described from Thailand as part of an inventory of sea slugs at Koh Tao. All up-to-date available morphological data for the species of the genus Unidentia is for the first time summarized. Morphological differences among the different species of Unidentia are clarified showing that every species has its own distinguishable morphological traits. According to the new molecular and morphological data, the family Unidentiidae is re-confirmed as a well-supported taxon of the aeolidacean nudibranchs. The taxonomy and phylogeny of the Aeolidacea in the light of the family Unidentiidae is briefly discussed and necessity of a fine-scale and narrowly-defined taxa approach instead of a ‘‘superlumping’’ one is highlighted. 


Phytotaxa ◽  
2018 ◽  
Vol 374 (1) ◽  
pp. 71 ◽  
Author(s):  
BO ZHANG ◽  
SAIYU WANG ◽  
XIAOQI XU ◽  
TIANHAO LI ◽  
DAN DAI ◽  
...  

A new species (Comatricha macrospora) has been collected from the Changbai Mountain National Nature Reserve, Jilin Province, China. Comatricha macrospora has smaller sporocarps and larger spores (about 15–18 μm in diameter) than other species of Comatricha as well as a persistent peridium at the base of the sporotheca. In addition, two newly recorded species of Comatricha—C. tenerrima (M.A. Curtis) G. Lister and C. afroalpina Rammeloo—have been documented in China for the first time, based on material collected from northeast China and the campus of East China Normal University, Fuzhou City, Jiangxi Province. Comatricha tenerrima is characterised by fusiform long-stalked sporocarps and warted pinkish brown spores (about 7–8 μm in diameter)., whereas C. afroalpina occurs on rotting logs and has spores marked by larger warts with an irregular reticulation at their base. Descriptions and scanning electron micrographs for these members of the genus Comatricha are provided. Phylogenetic analyses, based on small subunit ribosomal RNA sequences (SSUrRNA) of Comatricha and related genera, were carried out using Bayesian inference. These analyses confirmed the placement of the new species in the genus Comatricha.


Zootaxa ◽  
2017 ◽  
Vol 4341 (1) ◽  
pp. 25
Author(s):  
TRUONG QUANG NGUYEN ◽  
ANH VAN PHAM ◽  
THOMAS ZIEGLER ◽  
HANH THI NGO ◽  
MINH DUC LE

We describe a new species of Cyrtodactylus on the basis of four specimens collected from the limestone karst forest of Phu Yen District, Son La Province, Vietnam. Cyrtodactylus sonlaensis sp. nov. is distinguished from the remaining Indochinese bent-toed geckos by a combination of the following characters: maximum SVL of 83.2 mm; dorsal tubercles in 13–15 irregular rows; ventral scales in 34–42 rows; ventrolateral folds prominent without interspersed tubercles; enlarged femoral scales 15–17 on each thigh; femoral pores 14–15 on each thigh in males, absent in females; precloacal pores 8, in a continuous row in males, absent in females; postcloacal tubercles 2 or 3; lamellae under toe IV 18–21; dorsal head with dark brown markings, in oval and arched shapes; nuchal loop discontinuous; dorsum with five brown bands between limb insertions, third and fourth bands discontinuous; subcaudal scales distinctly enlarged. In phylogenetic analyses, the new species is nested in a clade consisting of C. huongsonensis and C. soni from northern Vietnam and C. cf. pulchellus from Malaysia based on maximum likelihood and Bayesian analyses. In addition, we record Cyrtodactylus otai Nguyen, Le, Pham, Ngo, Hoang, Pham & Ziegler for the first time from Son La Province based on specimens collected from Van Ho District. 


Phytotaxa ◽  
2016 ◽  
Vol 272 (4) ◽  
pp. 277 ◽  
Author(s):  
ŞANLI KABAKTEPE ◽  
BİROL MUTLU ◽  
ŞÜKRÜ KARAKUŞ ◽  
ILGAZ AKATA

A new species of rust fungus, Puccinia marrubii sp. nov. is described from Turkey. The new species is the first Puccinia species to be identified on genus Marrubium (Lamiaceae). In order to determine the phylogenetic relationships of the new species, ITS region was amplified by PCR, sequenced, and analyzed. In addition to the ITS region of seven Puccinia species, P. annularis, P. jasmini, P. malvacearum, P. nigrescens, P. phlomidis, P. salviae, and P. serpylli were sequenced for the first time. Phylogenetic analyses performed by using distance, Bayesian methods confirmed that the new rust was closely related to P. serpylli, P. malvacearum, P. salviae, and P. annularis. The diagnostic morphological characteristics of the new species were discussed with the phylogenetically related species.


2020 ◽  
Vol 19 (11) ◽  
pp. 1329-1352
Author(s):  
Hermann Voglmayr ◽  
Walter M. Jaklitsch ◽  
Salvador Tello

Abstract Based on molecular phylogenetic analyses of a multigene matrix of partial nuSSU-ITS-LSU rDNA, RPB1, RPB2 and TEF1 sequences and by morphological evidence, the genus Mycosphaerangium is shown to be the closest relative of Neomelanconium, and confirmed to be a member of the Cenangiaceae (Leotiomycetes). While Mycosphaerangium and Neomelanconium share many traits like similar conidia, conidiogenesis, asci and ascospores, their apothecia differ particularly in excipular features and are therefore recognized as distinct genera. Mycosphaerangium tiliae, described from North America, is excluded from the genus but shown to represent the sexual morph of the European Neomelanconium gelatosporum, and it is therefore synonymized with the latter. Based on morphology, Neomelanconium deightonii is assumed to be congeneric with Neomelanconium gelatosporum, and it is lectotypified. Dermatea tetraspora and Phaeangium magnisporum, the basionyms of Mycosphaerangium tetrasporum and M. magnisporum, respectively, are lectotypified as well, and for M. tetrasporum, the asexual morph is recorded for the first time. Mycosphaerangium quercinum sp. nov. is described as a new species from various Quercus hosts in Europe, where it is shown to be widely distributed. It morphologically and ecologically closely resembles the North American M. tetrasporum, but differs in paraphysis and ascospore morphology and by croziers at its ascus base. The three accepted species of Mycosphaerangium and the two of Neomelanconium are described and illustrated. Mycosphaerangium magnisporum, M. quercinum and M. tetrasporum are recorded to be constantly associated with species of Coryneum, indicating a fungicolous habit, but no evidence for fungal associations has been found in Neomelanconium deightonii and N. gelatosporum.


MycoKeys ◽  
2021 ◽  
Vol 80 ◽  
pp. 45-55
Author(s):  
Wan-Hao Chen ◽  
Yan-Feng Han ◽  
Jian-Dong Liang ◽  
Wei-Yi Tian ◽  
Zong-Qi Liang

A new species, Pleurodesmospora lepidopterorum, isolated from a pupa, is introduced. Morphological comparisons and phylogenetic analyses based on multigene datasets (ITS+RPB1+RPB2+TEF) support the establishment of the new species. Pleurodesmospora lepidopterorum is distinguished from P. coccorum by its longer conidiogenous pegs located in the terminal or lateral conidiophores, and smaller subglobose or ellipsoidal conidia. A combined dataset of RPB1, RPB2, and TEF confirmed the taxonomic placement of Pleurodesmospora in Cordycipitaceae for the first time.


2018 ◽  
Vol 32 (4) ◽  
pp. 827 ◽  
Author(s):  
Ana Riesgo ◽  
Fernanda F. Cavalcanti ◽  
Nathan J. Kenny ◽  
Pilar Ríos ◽  
Javier Cristobo ◽  
...  

Our study reports on the occurrence of a new species of Leucetta (Calcinea, Calcarea) from the Southern Ocean, Leucetta giribeti, sp. nov., collected in the shallow waters (15m depth) of Deception Island, South Shetland Islands. This new taxon is described based on a combination of morphological and molecular data, including the description of oocytes, embryos, larvae and sperm found in the choanosome. While female reproductive elements showed great similarities with those of other calcineans, sperm is reported here for the first time in the whole Calcinea subclass. Sperm cells are flagellated and possess a typical spermatic mid-piece, which is usually observed in cnidarians. In our phylogenetic analyses, we recovered Leucetta giribeti, sp. nov. as sister species of a clade formed by species of the genera Leucetta, Pericharax and Leucettusa. Although the clade in which Leucetta giribeti, sp. nov. is placed is supported by molecular and morphological features, we cannot propose a new genus due to uncertainties regarding the type species of the genus, Leucetta primigenia Haeckel, 1872. Our study reinforces the relevance of integrative approaches in the description of new taxa and contributes to resolving the poorly known reproductive patterns of Antarctic sponge species.


Zootaxa ◽  
2010 ◽  
Vol 2422 (1) ◽  
pp. 1 ◽  
Author(s):  
ISABEL HEIM ◽  
MICHAEL NICKEL

The sponge Tethya leysae sp. nov. (Porifera, Demospongiae, Hadromerida, Tethyidae) is a new species from the Canadian Northeast Pacific. Its type locality is the infralittoral around Ohiat Islet, Barkely Sound, Vancouver Island in Canada. Tethya leysae sp. nov. is a medium-sized spherical sponge with a verrucose surface, orange-yellow to light red alive and white with a greyish core in ethanol. The highly variable oxyspherasters (25-115 µm in size, R/C 0.34-0.69) are densely scattered almost throughout the entire cortex. The micrasters comprise acanthoxyspherasters, acanthostrongylasters, acanthotylasters and small oxyspherasters, which are present at low densities throughout the sponge and form a dense layer associated with the exopinacoderm. The megascleres and the auxiliary megascleres comprise oxeas and strongyloxeas. The new species is clearly distinguishable from the closely related T. californiana by the absence of spherules among the micrasters, the lack of an alveolar cortex and the extremely high density of megasters in the cortex. In addition, the R/C values of the megasters differ between the two species and the oxyspherasters of T. leysae sp. nov. rarely display bent rays. The morphological differences between the species are confirmed by nucleotide and amino acid substitutions within the cytochrome oxidase subunit I (COI) mtDNA gene. Phylogenetic analyses group T. leysae sp. nov. with T. californiana, T. actinia and T. minuta, which together form a sister group to a MediterraneanNorth Atlantic species cluster. Morphological analyses of the skeleton included x-ray microtomography (µCT) and virtual 3D reconstruction, which was used for the first time in conjunction with the description of a new sponge species. Microtomography permitted the visualization and analysis of spicules within the skeletal context or isolated in silico. The method represents a valuable extension to the sponge taxonomist’s toolbox since it allows morphometric measurements in 3D. µCT will thus supplement classical morphological methods such as light and scanning electron microscopy.


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