Phytotaxa 2024-06-13T10:01:12+12:00 Zhi-Qiang Zhang Open Journal Systems <p><strong>Phytotaxa </strong>is world's largest journal in botanical taxonomy. </p> <strong>Erratum: Gorjón, S.P. & Greslebin, A.G. (2024) <em>Stereodiscus pseudotrivialis </em>(Russulales, Basidiomycota), a new species from the Patagonian Andes of Argentina. <em>Phytotaxa </em>636 (2): 152–162.</strong> 2024-05-21T09:08:08+12:00 S.P. GORJÓN A.G. GRESLEBIN <p>N/A</p> 2024-06-13T00:00:00+12:00 Copyright (c) 2024 Phytotaxa <strong><em>Phelipanche cingularum</em> (Orobanchaceae), a new species from southern France</strong> 2024-04-02T23:23:25+13:00 THOMAS CROZE LUIS CARLÓN RUIZ JEAN-MARC TISON HENRI MICHAUD JAMES MOLINA GONZALO MORENO MORAL <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">A new species of <em>Phelipanche</em> has been discovered in various steep places in southern France at meso- and supra-mediterranean levels. It is always parasitic on Brassicaceae, almost exclusively on <em>Hesperis laciniata</em>, a plant that had never been reported as host for any Orobanchaceae previously. The new species, named <em>Phelipanche cingularum</em> for its rocky ledge (<em>cingula</em>) habitat, is described and illustrated. Diagnostic characters against up to 16 presumably related species are given. We also present the results of molecular analyses well-supporting its independence. The distribution and the unusual ecology of the plant are considered and illustrated, and its conservation status is evaluated.</span></span></span></p> 2024-06-13T00:00:00+12:00 Copyright (c) 2024 Phytotaxa <strong>Morphological and multi-gene phylogenetic analyses of two new species of <em>Phyllosticta </em>(Phyllostictaceae, Botryosphaeriales) from Southwestern China</strong> 2024-04-11T20:34:20+12:00 CUI-LING GONG HAI-XIA WU JIN-CHEN LI JIA-YU SONG <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>Phyllosticta</em></span><span lang="en-GB"> is an important genus of pathogenic fungi with worldwide distribution. </span><span lang="en-GB"><em>Phyllosticta</em></span><span lang="en-GB"> species also occur as endophytes and saprobes on various plant hosts. Multi-gene phylogenetic analysis based on sequence data of ITS, LSU, </span><span lang="en-GB"><em>TEF1</em></span><span lang="en-GB"> and morphological evidence supported the introduction of two new species, which were isolated from dead leaves in China. Phylogenetically, the new species, </span><span lang="en-GB"><em>P. savannaensis</em></span><span lang="en-GB"> and</span><span lang="en-GB"><em> P. ovalina</em></span><span lang="en-GB">, formed two well-separated lineages in the </span><span lang="en-GB"><em>Phyllosticta capitalensis</em></span><span lang="en-GB"> and </span><span lang="en-GB"><em>Phyllosticta cruenta</em></span><span lang="en-GB"> species complexes, respectively. </span><span lang="en-GB"><em>P. savannaensis</em></span><span lang="en-GB"> is closely related to </span><span lang="en-GB"><em>P. capitalensis</em></span><span lang="en-GB">, but formed a separate branch (BS= 100%/BYPP= 1.0),</span> <span lang="en-GB">while </span><span lang="en-GB"><em>P. ovalina</em></span><span lang="en-GB"> and </span><span lang="en-GB"><em>P. hubeiensis</em></span><span lang="en-GB"> clustered together with high support (BS= 100%/BYPP= 1.0). Both new species exhibited the typical characteristics of the genus </span><span lang="en-GB"><em>Phyllosticta</em></span><span lang="en-GB"> but could be distinguished from closely related species. </span><span lang="en-GB"><em>P. savannaensis</em></span><span lang="en-GB"> can be differentiated from the sexual stage of other </span><span lang="en-GB"><em>Phyllosticta</em></span><span lang="en-GB"> species by the length to width ratio of the ascospores and shape of appendages. The ascospores of</span><span lang="en-GB"><em> P. ovalina</em></span><span lang="en-GB"> are oval, which distinguish it from other species of </span><span lang="en-GB"><em>Phyllosticta</em></span><span lang="en-GB">.</span></span></span></span></p> 2024-06-13T00:00:00+12:00 Copyright (c) 2024 Phytotaxa <strong>A combined phylogenetic and numerical taxonomic study of <em>Matthiola montana</em> and <em>M. anchoniifolia </em>(Brassicaceae)</strong> 2024-04-23T20:01:42+12:00 DENİZ AYGÖREN ULUER BARIŞ ÖZÜDOGRU <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>Matthiola montana </em></span><span lang="en-GB">and </span><span lang="en-GB"><em>M. anchoniifolia </em></span><span lang="en-GB">are endemic to Türkiye and can be distinguished from each other by morphological features including siliques, leaves, petals, and hairs. Although these two taxa have traditionally been treated as separate species in all taxeonomic accounts, field and herbarium studies together with findings in the literature suggest that they should be considered at the subspecies level at the very least due to transitions in the aforementioned characters. To test this hypothesis, we evaluated all available herbarium specimens and specimens from field collections, conducting numerical and phylogenetic analyses based on the ITS region of the nuclear DNA. Our analyses, including the unweighted pair group method with arithmetic mean (UPGMA) and principal coordinate analysis (PCoA) as well as phylogenetic methods, consistently indicated that the two species did not form separate clusters. Therefore, our careful examination of the material, along with morphological and phylogenetic analyses, strongly supports the conclusion that </span><span lang="en-GB"><em>M. anchoniifolia</em></span><span lang="en-GB"> is not distinct from </span><span lang="en-GB"><em>M. montana</em></span><span lang="en-GB"> and should be a synonym of the latter. </span></span></span></span></p> 2024-06-13T00:00:00+12:00 Copyright (c) 2024 Phytotaxa <strong>A new omphalinoid species, <em>Entoloma khushabense</em> (<em>Entolomataceae</em>, <em>Basidiomycota</em>) from Punjab, Pakistan</strong> 2024-04-06T23:00:33+13:00 ZAMAN KHAN AIMAN IZHAR ABDUL NASIR KHALID <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">A new species, </span><span lang="en-GB"><em>Entoloma khushabense</em></span><span lang="en-GB">, is described and illustrated here based on morphological and molecular evidence from Pakistan. The key features of the new species that make it distinct from closely related taxa include the presence of conspicuous cheilocystidia and caulocystidia, and hyphae having constrictions in the walls. Morphological data and phylogenetic analyses based on internal transcribed spacer (ITS) and large sub-unit (LSU) regions of nuclear rDNA support that the present species differs from previously known members of </span><span lang="en-GB"><em>Entoloma</em></span><span lang="en-GB">. </span></span></span></span></p> 2024-06-13T00:00:00+12:00 Copyright (c) 2024 Phytotaxa <strong><em>Orobanche dagestanica </em>(Orobanchaceae): a new species from the Greater Caucasus</strong> 2024-04-16T17:41:03+12:00 RENATA PIWOWARCZYK ÓSCAR SÁNCHEZ PEDRAJA ALEXANDER V. FATERYGA SERGEY A. SVIRIN RAMAZAN A. MURTAZALIEV <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;">A new, probably endemic species, <em>Orobanche dagestanica</em> is described from Dagestan in Russia (the Greater Caucasus). The species grows in alpine shale scree slopes, and is a parasite of the roots of species from the genus <em>Lophiolepis</em> (Asteraceae). Based on morphological and phylogenetic data, the newly-described species belongs to <em>Orobanche </em>subsect. <em>Curvatae</em>, and specifically to <em>O. </em>ser. <em>Krylowianae</em>, however it is distinct from all other taxa in this group. A detailed description, diagnosis, illustrations, a comparison with related species, as well as phylogenetic analysis are provided. </span></span></span></p> 2024-06-13T00:00:00+12:00 Copyright (c) 2024 Phytotaxa <strong><em>Valeriana alanyense </em>(Caprifoliaceae): a new species from Southwest Anatolia (Turkey) based on morphological and molecular data</strong> 2024-04-13T06:41:07+12:00 FULYA YÜCEOL ÖMER ÇEÇEN RAMAZAN SÜLEYMAN GÖKTÜRK ERGUN KAYA HACER AĞAR <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><em>Valeriana alanyense </em>a new species to science from Southwestern of Turkey, is described and illustrated. The new species exhibits affinities to <em>V. speluncaria</em> and it differs from it in certain morphological characteristics: leaf shape and size, elongated stems and smaller corolla length. Geographical distribution at lower altitudes also sets it significantly from <em>V. speluncaria</em>. A comprehensive description, photos, information regarding its habitat and ecology, comparisons to related species, a distribution map, and conservation status are additionally considered. Moreover, morphological characterizations of <em>V. alanyense</em> and <em>V. speluncaria</em> were supported by using the ISSR PCR technique in molecular analyses. For molecular analyses, six ISSR primers that gave the most polymorphic band profiles for the <em>Valeriana</em> genus were selected among a total of twenty-five primers. As a result of PCR performed with the six selected ISSR primers, a total of 65 band profiles ranging from 250bp to 1200bp were seored. According to the obtained band profile scores and the constructed dendogram analysis, <em>V. alanyense</em> and <em>V. speluncaria</em> can be separated from each other at the species level. This result supports the data obtained from morphological analysis. </span></span></span></p> 2024-06-13T00:00:00+12:00 Copyright (c) 2024 Phytotaxa <strong>High liverwort diversity in the tropical Andes as evidenced by the discovery of three new species of <em>Radula</em> (Radulaceae)</strong> 2024-05-04T06:55:31+12:00 FÚVIO R. OLIVEIRA-DA-SILVA S. ROBBERT GRADSTEIN <p align="justify"><span style="color: #000000;"><span style="font-family: Times New Roman, serif;"><span style="font-size: small;"><span lang="en-GB">We describe three new species of </span><span lang="en-GB"><em>Radula</em></span><span lang="en-GB"> subg. </span><span lang="en-GB"><em>Volutoradula</em></span><span lang="en-GB"> from above 3000 m in the tropical Andes: </span><span lang="en-GB"><em>R. ilkiuborgesiae</em></span><span lang="en-GB"> from Colombia (Dept. Santander), and </span><span lang="en-GB"><em>R. longicarinata</em></span><span lang="en-GB"> and </span><span lang="en-GB"><em>R. magna</em></span><span lang="en-GB"> from Bolivia (Dept. La Paz). The new species stand out by the unusual shape of their lobules. Full descriptions, illustrations as well as comments on the morphology, taxonomy, ecology and distribution of the new species are provided. The discovery of the new species adds three further endemic taxa to the rich bryophyte flora of the tropical Andes, the richest area for Radulaceae in the Neotropics.</span></span></span></span></p> 2024-06-13T00:00:00+12:00 Copyright (c) 2024 Phytotaxa