https://mapress.com/pt/issue/feedPhytotaxa2023-03-21T14:13:54+13:00Zhi-Qiang Zhangzhangz@landcareresearch.co.nzOpen Journal Systems<p><strong>Phytotaxa </strong>is world's largest journal in botanical taxonomy. </p>https://mapress.com/pt/article/view/phytotaxa.589.1.1<p><strong><em>Entoloma griseofibrillosus</em> (Entolomataceae, Basidiomycota), a new species from Punjab, Pakistan</strong></p>2023-03-21T11:54:22+13:00AIMAN IZHARaimanizhar25@gmail.comTAYYABA QASIMtayyaba.qasim@yahoo.comMUHAMMAD ASIFasifgondal101@gmail.comABDUL REHMAN NIAZImushroomniazi@gmail.comABDUL NASIR KHALIDdrankhalid@gmail.com<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">A new species belonging to the Rusticoides clade of <em>Entoloma</em>, with an omphalinoid habit is described from Pakistan with detailed morphological descriptions, illustrations and molecular data. Illustrations of microcharacteristics and comparison with closely allied species are provided. <em>Entoloma griseofibrillosus</em> is distinguished based on a greyish brown, hygrophanous fibrillose pileus, sub-isodiametric angular spores, varying shapes of cheilocystidia and a pileipellis as a cutis. Phylogenetic estimation based on nrITS and nrLSU regions with a well-nested position of the described taxon is presented in the current study. </span></span></span></p>2023-03-21T00:00:00+13:00Copyright (c) 2023 Phytotaxahttps://mapress.com/pt/article/view/phytotaxa.589.1.2<p><strong><em>Marasmius margallensis</em>, a new species of <em>Marasmius</em> sect. <em>Sicci</em> from Margalla Hills, Pakistan</strong></p>2023-03-21T11:54:24+13:00FAUZIA RAZZAQfauziarazzaq786@gmail.comABDUL NASIR KHALIDdrankhalid@gmail.com<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><em>Marasmius margallensis</em> <em>sp. nov.</em> of sect. <em>Sicci </em>from Margalla hills, Islamabad, Pakistan, is described and illustrated, based on morphological characteristics and multigene phylogenetic analyses. The taxon is characterized by a pale yellow to dull orange pileus with light gray margins, clavate to narrowly fusiform basidiospores, rather short pleurocystidia and hymeniderm pileipellis with <em>Siccus</em>-type broom-cells. <em>Marasmius pulcherripes</em> is closest relative of the newly described species <em>M. margallensis</em> in sect. <em>Sicci</em> in phylogenetic analyses but the later one is distinct by macro-, and micro-morphological features and molecular data.</span></span></span></p>2023-03-21T00:00:00+13:00Copyright (c) 2023 Phytotaxahttps://mapress.com/pt/article/view/phytotaxa.589.1.3<p><strong><em>Pseudoboletus silvaticus</em> (Boletaceae, Basidiomycota), a new species from Mexico</strong></p>2023-03-21T11:54:26+13:00ALONSO CORTÉS-PÉREZalonso.cortes5231@alumnos.udg.mxFLORENCIA RAMÍREZ-GUILLÉNflorencia.ramirez@inecol.mxJESÚS GARCÍA-JIMÉNEZjgarjim@yahoo.com.mxVIRGINIA RAMÍREZ-CRUZvirginia.ramirez@conacyt.mxALMA ROSA VILLALOBOS-ARÁMBULAavillal@cucba.udg.mxDOLORES MARINA BARRAGÁN REYNAGAdolores.barragan@academicos.udg.mxLAURA GUZMÁN-DÁVALOSlaura.guzman@academicos.udg.mx<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">The genus <em>Pseudoboletus </em>includes parasitic fungi and is well known in temperate zones. In this paper, we present the first Mexican collections of this genus. Two specimens were collected in a field expedition in a tropical montane cloud forest on the San Martín Tuxtla volcano, Veracruz, Mexico, resulting in a new species of <em>Pseudoboletus</em>, which grows on fruiting bodies of <em>Scleroderma nitidum</em>. Descriptions, illustrations, and photographs of <em>P. silvaticus sp. nov</em>. are provided. Also, its phylogenetic position in the Boletineae tree was inferred using nuclear 28S rDNA (28S) and translation elongation factor-1α (<em>tef–1α</em>) with Maximum Likelihood method and Bayesian Inference. Comparison between nuclear rDNA internal transcribed spacer region (ITS) sequences of <em>P.</em> <em>parasiticus</em> from North America and Europe and the new taxon were made. The original diagnosis of the genus <em>Pseudoboletus</em> is emended to include this new species.</span></span></span></p>2023-03-21T00:00:00+13:00Copyright (c) 2023 Phytotaxahttps://mapress.com/pt/article/view/phytotaxa.589.1.4<p><strong><em>Leucoagaricus gujratensis sp. nov.</em> (Agaricaceae, Agaricales) from Pakistan</strong></p>2023-03-21T11:54:29+13:00AMATU REHMANamaturehmanawan@gmail.comMUHAMMAD USMANmusmanmughal52@yahoo.comNAJAM UL SEHAR AFSHANnajamulsehar.botany@pu.edu.pkABDUL NASIR KHALIDdrankhalid@gmail.com<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">A novel mushroom, occurring on sandy soil was collected from scrubland of Gujrat district, Pakistan. Phylogenetic analyses of the nrDNA ITS region revealed that it clusters within <em>Leucoagaricus</em> section <em>Leucoagaricus</em>. Further morpho-anatomical analyses confirmed its uniqueness, and it is here described as <em>Leucoagaricus gujratensis</em> <em>sp. nov.</em> The distinguishing characters of this novel taxon are fragile basidiomata with brown to light brown squamules in the center on milky white pileus surface; creamy stipe with white central annulus; lacrymoid to amygdaliform basidiospores (5.4–8.6 × 3.9–5.5 μm) and clavate to slightly fusiform and fabiform cheilocystidia. The new mushroom resembles <em>La</em>. <em>candidus</em> in appearance but the morpho-anatomical and molecular characters prove its novelty. The number of <em>Leucoagaricus</em> species in Pakistan has reached up to 14.</span></span></span></p>2023-03-21T00:00:00+13:00Copyright (c) 2023 Phytotaxahttps://mapress.com/pt/article/view/phytotaxa.589.1.5<p><strong>Range extension, taxonomic note, molecular-phylogenetic relationship, and conservation of <em>Frullania iriomotensis</em> S.Hatt. (Marchantiophyta, Frullaniaceae), a rare liverwort previously known only from the type locality in Japan</strong></p>2023-03-21T11:54:31+13:00CHATCHABA PROMMAc.promma@gmail.comSHI-HUI LUgzlushihui@163.comCHAO SHENshenchao_hznx@163.comLI-NA ZHANGzhlina99@163.comRUI-LIANG ZHUrlzhu@bio.ecnu.edu.cn<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><em>Frullania iriomotensis</em> (Frullaniaceae), a rare liverwort previously known only from the type locality in Japan, was newly discovered in a rainforest in southern China. The first phylogenetic analyses based on the nuclear ribosomal ITS region and two chloroplast regions (<em>rbc</em>L, <em>trn</em>L–F) of <em>F. iriomotensis</em> reveal that it is sister to the tropical Asian <em>F. repandistipula</em> in the Diastaloba II group of <em>F.</em> subg. <em>Diastaloba</em>. Androecia and gynoecia are described and illustrated for the first time for this species and a proposal for conservation is presented.</span></span></span></p>2023-03-21T00:00:00+13:00Copyright (c) 2023 Phytotaxahttps://mapress.com/pt/article/view/phytotaxa.589.1.6<p><strong><em>Chiloschista densiflora</em> (Orchidaceae), a distinctive species newly recorded from Xizang, China</strong></p>2023-03-21T11:54:33+13:00YING-YING WEN402411720001@email.ncu.edu.cnCHONG-BO MA1130059815@qq.comTIAN-KAI ZHANGtiankai.zhang@gmail.comXI-LONG WANGwangxilong@hotmail.comWEN-SHUAI CHEN443996502@qq.comBO-YUN YANGyangboyun@ncu.edu.cnXIAO-HUA JINxiaohuajin@ibcas.ac.cn<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><em>Chiloschista densiflora</em> (Orchidaceae), a new record of flora of China, is described and illustrated based on materials from Motuo, Xizang. Morphologically, <em>Chiloschista densiflora</em> is characterized by middle lobe with a pubescent callus ranging from base to apex, two conical calli at base, short and stocky column. </span></span></span></p>2023-03-21T00:00:00+13:00Copyright (c) 2023 Phytotaxahttps://mapress.com/pt/article/view/phytotaxa.589.1.7<p><strong>Two new species of <em>Friesodielsia</em> (Annonaceae) from Peninsular Thailand</strong></p>2023-03-21T11:54:35+13:00CHARAN LEERATIWONGcharan.leeratiwong@gmail.comSUNATE KARAPANkarapann@gmail.comJIRATTHI SATTHAPHORNjiratthi.sa@wu.ac.thDAVID M. JOHNSONdmjohnso@owu.edu<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">Two new <em>Friesodielsia</em> species (Annonaceae) from Peninsular Thailand, <em>F. betongensis</em> and <em>F. chalermgliniana</em>, are described and illustrated. The addition of these raises the total number of <em>Friesodielsia</em> species in Thailand to 18. A conservation assessment for each new species and an identification key for all Thai species are provided. </span></span></span></p>2023-03-21T00:00:00+13:00Copyright (c) 2023 Phytotaxahttps://mapress.com/pt/article/view/phytotaxa.589.1.8<p><strong><em>Symplocos sisparensis</em> (Symplocaceae), a new species from the Nilgiri Biosphere Reserve, India</strong></p>2023-03-21T11:54:38+13:00B. KARTHIKkarthikbr1711@gmail.comM. MURUGESANtaxonmurugesh@gmail.comV. ANUSUBAanusubaveluswamy@gmail.comM. PREMKUMARmayandipremkumar@gmail.comR. THARANItharani.ravi1974@gmail.com<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB"><em>Symplocos sisparensis</em></span><span lang="en-GB">, a new species of Symplocaceae has been collected from Mukurthi National Park in Nilgiris district of Tamil Nadu part of Nilgiri Biosphere Reserve (NBR). The new species is morphologically similar to </span><span lang="en-GB"><em>Symplocos foliosa</em></span><span lang="en-GB"> Wight, however it is differing from by its habit, branchlets, leaves, calyx lobes, style and fruit characters. Therefore, the new species is described with detailed description, phenology, distribution (including map) along with photographic plates and illustration to facilitate easy identification of this species in the field.</span></span></span></span></p>2023-03-21T00:00:00+13:00Copyright (c) 2023 Phytotaxahttps://mapress.com/pt/article/view/phytotaxa.589.1.9<p><strong><em>Rhagadiolus edulis</em> (<em>Cichorieae</em>, <em>Compositae</em>), a replacement name for <em>Lapsana rhagadiolus</em> L. or a name of a new taxon?</strong></p>2023-03-21T11:54:40+13:00P. PABLO FERRER-GALLEGOflora.cief@gva.esMARÍA TALAVERAmtalavera@us.es<p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><em>Rhagadiolus edulis</em> (<em>Cichorieae</em>, <em>Compositae</em>) can be treated either as a replacement name or as the name of a new taxon according to the International Code of Nomenclature for algae, fungi, and plants. Treating it as a replacement name would be nomenclaturally disruptive, whereas treating it as the name of a new taxon, confirmed by an appropriate typification, maintains current usage. Therefore, the nomenclatural type for the name <em>Rhagadiolus edulis</em> is discussed. The name is lectotypified by a specimen preserved in the Gaertner Herbarium at TUB.</span></span></span></p>2023-03-21T00:00:00+13:00Copyright (c) 2023 Phytotaxahttps://mapress.com/pt/article/view/phytotaxa.589.1.10<p><strong><em>Begonia chenii</em>, a synonym of <em>B. mariachristinae</em> (Begoniaceae) in Myanmar</strong></p>2023-03-21T11:54:42+13:00AUNG AUNGaungaung.uof@gmail.comERIC WAHLSTEENeric.wahlsteen@gmail.comWEN-HONG CHENwhchen@mail.kib.ac.cnYU-MIN SHUIymshui@mail.kib.ac.cn<p>N/A</p>2023-03-21T00:00:00+13:00Copyright (c) 2023 Phytotaxa