Phytotaxa https://phytotaxa.mapress.com/pt <p><strong>Phytotaxa </strong>is world's largest journal in botanical taxonomy. </p> en-US <span lang="EN-GB">Authors need to complete and return an </span><span lang="EN-GB"><a href="http://www.mapress.com/phytotaxa/images/copyright.rtf">Assignment of Copyright</a> </span><span lang="EN-GB">form when a paper is accepted for publication. Authors from institutions that do not allow transfer of copyrights to publishers (e.g. government institutions such as USDA, CSIRO) should attach a copyright waiver or similar document.</span> zhangz@landcareresearch.co.nz (Zhi-Qiang Zhang) phytotaxa@mapress.com (Ning L.) Thu, 29 Feb 2024 10:19:36 +1300 OJS 3.3.0.6 http://blogs.law.harvard.edu/tech/rss 60 <strong>Taxonomic study of Pan-Himalayan <em>Cyperus</em> species which used to be placed in the segregate genus <em>Pycreus</em></strong> https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.1 <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">This paper presents a taxonomic account of the </span><span lang="en-GB"><em>Cyperus</em></span><span lang="en-GB"> species which used to be placed in the segregate genus </span><span lang="en-GB"><em>Pycreus</em></span><span lang="en-GB"> (hereafter: </span><span lang="en-GB"><em>Pycreus</em></span><span lang="en-GB"> species) within the Pan-Himalaya, based on morphological and micromorphological studies. Twelve </span><span lang="en-GB"><em>Pycreus</em></span><span lang="en-GB"> species have been identified in the Pan-Himalaya region. Taxonomic keys, descriptions, type information, ecology, and distribution notes are provided for each species. The taxonomic significance of nutlet micromorphology is discussed, supported by high-quality digital images and scanning electron microscope (SEM) observations. </span><span lang="en-GB"><em>Cyperus diaphanus</em></span><span lang="en-GB"> var. </span><span lang="en-GB"><em>gracilescens</em></span><span lang="en-GB"> and </span><span lang="en-GB"><em>Pycreus pseudolatespicatus</em></span><span lang="en-GB"> are synonymized with </span><span lang="en-GB"><em>C. diaphanus</em></span><span lang="en-GB">. A new combination is proposed for </span><span lang="en-GB"><em>P. lijiangensis</em></span><span lang="en-GB">, and lectotypes are designated for </span><span lang="en-GB"><em>C. angulatus</em></span><span lang="en-GB">, </span><span lang="en-GB"><em>C. diaphanus</em></span><span lang="en-GB">, </span><span lang="en-GB"><em>C. substramineus</em></span><span lang="en-GB">, </span><span lang="en-GB"><em>C. sulcinux</em></span><span lang="en-GB">, </span><span lang="en-GB"><em>C. delavayi</em></span><span lang="en-GB"> and </span><span lang="en-GB"><em>P. lijiangensis</em></span><span lang="en-GB">. Additionally, </span><span lang="en-GB"><em>C. africanus</em></span><span lang="en-GB"> is reported for the first time outside Africa.</span></span></span></span></p> PRABIN BHANDARI, BANG-ZE LI, AMAR KUNWAR, SUMAN POUDEL, SHI-LIANG ZHOU, SHU-REN ZHANG Copyright (c) 2024 Phytotaxa https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.1 Thu, 29 Feb 2024 00:00:00 +1300 <strong><em>Phlomoides cuonaensis </em>(Lamiaceae), a new species from Xizang (China), and lectotypification of the name<em> Notochaete hamosa</em></strong> https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.2 <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span style="color: #040407;"><span lang="en-GB"><em>Phlomoides </em></span></span><span style="color: #040407;">is the second largest genus within Lamiaceae subfamily Lamioideae, and China is one of three diversity centers of the genus. In this study, we described and illustrated a new species, </span><span style="color: #040407;"><em>Phlomoides cuonaensis</em></span><span style="color: #040407;">, from Cuona City, Xizang Autonomous Region, China. Molecular phylogenetic analyses revealed that </span><span style="color: #040407;"><em>P. cuonaensis</em></span><span style="color: #040407;"> and two morphologically similar species, </span><span style="color: #040407;"><em>P. hamosa</em></span><span style="color: #040407;"> and</span><span style="color: #040407;"><em> P. longiaristata</em></span><span style="color: #040407;">, form a distinct clade within </span><span style="color: #040407;"><em>Phlomoides</em></span><span style="color: #040407;">. Synapomorphies of this small clade are hooked floral bracts and calyx spines. The new species differs from the other two in trichome density and size on the calyx, floral bract, and nutlet, and in the length of the calyx and bract. Micro-morphological features of nutlets of these three species were examined using scanning electron microscopy. In addition, a lectotype for the name </span><span style="color: #040407;"><em>Notochaete hamosa</em></span><span style="color: #040407;"> (≡ </span><span style="color: #040407;"><em>Phlomoides hamosa</em></span><span style="color: #040407;">) was designated.</span></span></span></span></p> YUE ZHAO, MEI-LING QIAN, QIN TIAN, ALEXANDER P. SUKHORUKOV, CHUN-LEI XIANG Copyright (c) 2024 Phytotaxa https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.2 Thu, 29 Feb 2024 00:00:00 +1300 <strong>An enlarged circumscription of <em>Bifrenaria</em> (Orchidaceae: Maxillariiinae)</strong> https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.3 <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span style="color: #040407;"><span lang="en-GB">A revised delimitation of </span></span><span lang="en-GB"><em>Bifrenaria</em></span><span lang="en-GB"> broadens the genus to include the previously accepted genera </span><span lang="en-GB"><em>Guanchezia</em></span><span lang="en-GB">, </span><span lang="en-GB"><em>Horvatia</em></span><span lang="en-GB">, </span><span lang="en-GB"><em>Hylaeorchis</em></span><span lang="en-GB">, </span><span lang="en-GB"><em>Rudolfiella</em></span><span lang="en-GB">, </span><span lang="en-GB"><em>Scuticaria</em></span><span lang="en-GB">, and </span><span lang="en-GB"><em>Teuscheria</em></span><span lang="en-GB">. These genera as currently circumscribed are changed to sections, and their respective species transferred or combined along with newly synonymised species. </span><span lang="en-GB"><em>Bifrenaria</em></span><span lang="en-GB"> sect. </span><span lang="en-GB"><em>Stenocoryne</em></span><span lang="en-GB"> and </span><span lang="en-GB"><em>B. </em></span><span lang="en-GB">sect. </span><span lang="en-GB"><em>Adipe</em></span><span lang="en-GB"> are reinstated,</span><span lang="en-GB"><em> Adipe</em></span><span lang="en-GB"> treated as section, and two new sections are described, as follows: </span><span lang="en-GB"><em>B.</em></span><span lang="en-GB"> sect. </span><span lang="en-GB"><em>Integrilabellae</em></span><span lang="en-GB"> and </span><span lang="en-GB"><em>B. </em></span><span lang="en-GB">sect. </span><span lang="en-GB"><em>Xylobioides</em></span><span lang="en-GB">.</span></span></span></span></p> THIAGO E. C. MENEGUZZO, MARK W. CHASE Copyright (c) 2024 Phytotaxa https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.3 Thu, 29 Feb 2024 00:00:00 +1300 <strong>Spontaneous hybridization among invasive Poaceae in Hawai‘i: <em>Chloris × </em><em>pseudosagrana</em> <em>nothosp. nov.</em> and <em>Cenchrus × peregrinus</em><em> </em><em>nothosp. nov.</em></strong> https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.4 <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span style="color: #040407;"><span lang="en-GB">During grass surveys across the islands of Hawai</span></span><span lang="en-GB">‘i in 2022, two novel hybrids among non-native Poaceae were found growing on roadsides. Spontaneous hybridization was observed among </span><span lang="en-GB"><em>Chloris barbata</em></span><span lang="en-GB"> and </span><span lang="en-GB"><em>C. divaricata</em></span><span lang="en-GB"> on O‘ahu and among </span><span lang="en-GB"><em>Cenchrus clandestinus</em></span><span lang="en-GB"> and </span><span lang="en-GB"><em>C. setaceus</em></span><span lang="en-GB"> on Hawai‘i island. Morphological evidence initially suggested these plants may be hybrids and molecular analysis using the ITS and </span><span lang="en-GB"><em>rpl32-trnL</em></span><span lang="en-GB"> regions confirmed that the plants are hybrids and identified their parentage. These hybrids are named </span><span lang="en-GB"><em>Chloris</em></span> <span lang="en-GB"><em>×</em></span> <span lang="en-GB"><em>pseudosagrana</em></span> <span lang="en-GB"><em>nothosp. nov.</em></span><span lang="en-GB"> and </span><span lang="en-GB"><em>Cenchrus</em></span> <span lang="en-GB"><em>×</em></span> <span lang="en-GB"><em>peregrinus nothosp. nov.</em></span><span lang="en-GB"> No developed seeds could be found on either of these hybrids and they are suspected to be sterile F1 hybrids. The occurrence of hybridization events among other non-native species are also discussed.</span></span></span></span></p> KEVIN FACCENDA, MITSUKO YORKSTON, MICHAEL C. ROSS, CLIFFORD W. MORDEN Copyright (c) 2024 Phytotaxa https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.4 Thu, 29 Feb 2024 00:00:00 +1300 <strong><em>Velutinus</em>, a novel genus in Patellariopsidaceae from medicinal plants in Sichuan Province, China</strong> https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.5 <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span style="color: #040407;"><span lang="en-GB"><em>Velutinus sichuanensis gen</em></span></span><span lang="en-GB">.</span><span lang="en-GB"><em> et sp</em></span><span lang="en-GB">.</span><span lang="en-GB"><em> nov</em></span><span lang="en-GB">. was collected from dead branches of the medicinal plant </span><span lang="en-GB"><em>Loropetalum chinense</em></span><span lang="en-GB"> var. </span><span lang="en-GB"><em>rubrum</em></span><span lang="en-GB"> (Hamamelidaceae) in Sichuan Province, China. The genus </span><span lang="en-GB"><em>Velutinus </em></span><span lang="en-GB">is characterized by having cylindrical, straight or slightly curved, septate, hyaline conidiophores, holoblastic, polyblastic conidiogenous cells, and thick-walled, dark brown, septate, spherical conidia, sometimes with conspicuous appendages. Molecular phylogenetic analyses based on the combined ITS and LSU sequences data showed that </span><span lang="en-GB"><em>Velutinus</em></span><span lang="en-GB"> forms a distinct lineage in Patellariopsidaceae, Helotiales, Leotiomycetes. The new genus, </span><span lang="en-GB"><em>Velutinus</em></span><span lang="en-GB"> is introduced to accommodate </span><span lang="en-GB"><em>V. sichuanensis</em></span><span lang="en-GB"> based on morphological characteristics and multi-gene phylogenetic analyses. Detailed descriptions and illustrations of the new taxa are provided.</span></span></span></span></p> NA WU, K.W. THILINI CHETHANA, JIAN-KUI LIU Copyright (c) 2024 Phytotaxa https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.5 Thu, 29 Feb 2024 00:00:00 +1300 <strong><em>Allium kangdingense</em> (Amaryllidaceae, Allioideae), a new species of section <em>Sikkimensia</em> from western Sichuan</strong> https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.6 <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span style="color: #040407;"><span lang="en-GB"><em>Allium kangdingense</em></span></span> D.F. Xie &amp; X.J. He. a new species from western Sichuan Province, China, is described and illustrated herein. Evidence from morphological and phylogenetic analyses suggested that this new species belongs to section <em>Sikkimensia</em> of subgenus <em>Reticulatobulbosa</em>. It is morphologically closer to <em>A. plurifoliatum</em> and <em>A. zhegushanense</em> but differentiated by its fibrous roots in fuchsia, semiterete and semi-fistulose leaves, cross-section of scape, tepal color, and the base of stamen filaments. Taxonomic delineation and phylogenetic analysis based on nuclear ribosomal internal transcribed spacers (ITS) and four cpDNA (<em>atpI</em>–<em>atpH</em>, <em>trnV</em>–<em>ndhC</em>, <em>rpoB</em>–<em>trnC</em>, <em>trnL</em>–<em>trnF</em>) regions further revealed that <em>Allium kangdingense</em> is related to other species of sect. <em>Sikkimensia</em>, such as <em>A. beesianum</em>, <em>A. sikkimense</em>, <em>A. yuanum</em>, and <em>A. cyaneum</em>. The detailed differences in morphological characters and habitat are presented.</span></span></span></p> DENG-FENG XIE, RUI-YU CHENG, JIAO-JIAO DENG, YUAN WANG, XING-JIN HE Copyright (c) 2024 https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.6 Thu, 29 Feb 2024 00:00:00 +1300 <strong>New records of fungi on <em>Nephelium lappaceum</em> (Rambutan) from northern Thailand</strong> https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.7 <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span style="color: #040407;"><span lang="en-GB">Rambutan (</span></span><span lang="en-GB"><em>Nephelium lappaceum</em></span><span lang="en-GB">) is a seasonal fruit crop in Thailand. Thailand is a major exporter of rambutan, but its yield is compromised by fungal infections. Only a few studies have focused on fungi infecting</span> <span lang="en-GB">this host plant in Thailand. Therefore, we investigated fungi from </span><span lang="en-GB"><em>Nephelium lappaceum</em></span><span lang="en-GB"> from northern Thailand and identified three new host records, along with new geographical records. The three fungi are </span><span lang="en-GB"><em>Rhytidhysteron neorufulum, Scolecobasidium spiralihyphum, </em></span><span lang="en-GB">and</span><span lang="en-GB"><em> Wiesneriomyces laurinus</em></span><span lang="en-GB"> and all are described based on morphology and multigene phylogeny (ITS, LSU, SSU, </span><span lang="en-GB"><em>tef</em></span><span lang="en-GB">, and </span><span lang="en-GB"><em>β-tub</em></span><span lang="en-GB">). These findings provide substantial new data about fungal communities associated with the host, their geographic distribution and their effectiveness in ecosystem function. Herbarium specimens and pure cultures were deposited in the Mae Fah Luang University Fungarium and culture collection.</span></span></span></span></p> NIRANJAN MEKALA, CHITRABHANU S. BHUNJUN, ERIC H.C. MCKENZIE Copyright (c) 2024 Phytotaxa https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.7 Thu, 29 Feb 2024 00:00:00 +1300 <strong>A new species of <em>Mesocapparis </em>(Capparaceae) from the Brazilian Cerrado</strong> https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.8 <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span style="color: #040407;"><span lang="en-GB"><em>Mesocapparis minutiflora</em></span></span><span style="color: #040407;">, a new species for the Cerrado, is described and compared with related species. The taxon is described from the state of Tocantins and Piauí, with only five known collections. It is distinguished from other species mainly by the different shapes of leaf base, petiolar insertion, and the shorter size of petals, gynophore, and filaments. The conservation status of the new species is discussed, and information is provided on its flowering period and geographic distribution. </span></span></span></span></p> JAQUELINI LUBER, TATIANA TAVARES CARRIJO, VIDAL DE FREITAS MANSANO Copyright (c) 2024 Phytotaxa https://phytotaxa.mapress.com/pt/article/view/phytotaxa.638.2.8 Thu, 29 Feb 2024 00:00:00 +1300