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Thursday, April 3rd, 2025
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| 3:18a | [Botany • 2024] Hesperis oznur-duraniae (Brassicaceae) • A New Species from the East Anatolia region, Turkey
Abstract A new species of Hesperis L. is described from East Anatolia. This species has been collected from Yolçatı village (Bingöl province) in Turkey. Hesperis oznur-duraniae A.Duran sp. nova is morphologically similar to H. kitiana P.H.Davis but it differs mainly with life form, habitat, leaves, pedicels, sepals, petals, and anthers. In this study, an identification key with a description of the new species is provided along with statements about the habitat, distribution map, phenology, and conservation status of the new species. Additionally, seed features are also documented using scanning electron microscopy (SEM). Bingöl, Cruciferae, taxonomy, systematics, Eudicots
  Ahmet DURAN. 2024. Hesperis oznur-duraniae (Brassicaceae), A New Species from the East Anatolia region, Turkey. Phytotaxa. 664(1); 46-58. DOI: doi.org/10.11646/phytotaxa.664.1.4 [2024-09-03] | ||||||||||
| 8:59a | [Arachnida • 2025] Mimetus guiyang & M. lanmeiae • A Survey of mimetid spiders (Araneae: Mimetidae) from Central Guizhou Province, China
Abstract A survey of the mimetids of Central Guizhou Province, China, is presented. A total of five species are addressed, raising the number of species of the genus Mimetus Hentz, 1832, known from this province from four to eight, making Guizhou the province with the most Mimetus species in China. Two of the taxa are new species: M. guiyang J. S. Zhang, Yu & Xu, sp. nov. and M. lanmeiae Liu, Yu & Xu, sp. nov., both from Guiyang City, provincial capital of Guizhou. The other three known species include two new records from Guizhou, M. caudatus Wang, 1990, and M. sinicus Song & Zhu, 1993, as well as a species, M. testaceus Yaginuma, 1960, that was previously recorded from the province. The female of M. caudatus is described for the first time, based on the new material from Duyun City. Detailed descriptions, diagnoses, and photographs of the two new species and M. caudatus, as well as photographs of M. sinicus and M. testaceus, are provided. The DNA barcodes of M. lanmeiae sp. nov., M. sinicus, and M. testaceus were obtained for species delimitation, matching of sexes, and future use. Key Words: DNA barcoding, Guiyang City, morphology, new species, taxonomy
Mimetus guiyang J. S. Zhang, Yu & Xu, sp. nov. Mimetus lanmeiae Liu, Yu & Xu, sp. nov.
Jianshuang Zhang, Haoshen Zhang, Jinxin Liu, Hao Yu and Xiang Xu. 2025. A Survey of mimetid spiders (Araneae, Mimetidae) from Central Guizhou Province, China. Zoosystematics and Evolution. 101(2): 711-734. DOI: doi.org/10.3897/zse.101.146895 | ||||||||||
| 9:43a | [Botany • 2025] Polygonum anatolicum (Polygonaceae) • A New unique Species from Türkiye
Abstract Polygonum is a taxonomically complex genus comprising more than 173 species. The flora of Türkiye includes 34 species of Polygonum, 13 of which are endemics (two are annuals, eleven are perennials). Based on field surveys in southern Türkiye, as well as examination of specimens deposited in various herbaria, we here propose to described a new species for science, Polygonum anatolicum. This species is an annual with extremely slender stems, and can be easily distinguished from other annuals knotweeds by its zig-zag twisting, especially at the end of the branches, tiny flowers, and quickly shed basal and tiny leaves. With the new species in this article, the number of Polygonum species in Türkiye has increased to 35 and the number of endemic taxa to 14. Amanos Mountains, Annual species, Hatay, Kızıldağ, morphology, new key, new taxon, Eudicots      Polygonum anatolicum  İsmail EKER and Mustafa KESKİN. 2025. Polygonum anatolicum (Polygonaceae): A New unique Species from Türkiye. Phytotaxa. 696(2); 192-200. DOI: doi.org/10.11646/phytotaxa.696.2.8 [2025-04-01]  | ||||||||||
| 2:46p | [Botany • 2025] Arisaema globiceps (Araceae) • A New Species from Taiwan
Abstract A new species, Arisaema globiceps (Araceae), is described from southern Taiwan. Morphologically, it is closely related to A. consanguineum and A. formosanum but can be readily distinguished by its spadix appendix, which is apically abruptly dilated into a globular knob. Additional information about its morphology, distribution and ecology is provided. Keyword: Arisaema consanguineum, Arisaema formosanum, Aroideae, Arisaematae, taxonomy
 Arisaema globiceps T.C. Hsu, W.J. Huang & S.W. Chung, sp. nov. Diagnosis: Arisaema globiceps resembles A. consanguineum and A. formosanum in terms of gross morphology but can be readily distinguished by its globose dilation at the tip of its spadix appendix. In contrast, A. consanguineum features a clavate spadix appendix, while that of A. formosanum is filiform. Etymology: The specific epithet is derived from globus, meaning “ball” or “sphere”, and –ceps, meaning “headed”, referring to its diagnostic globose dilation at the tip of the spadix appendix. We also propose a Mandarin vernacular name “頂珠天南星”. Tian-Chuan Hsu, Wei-Jie Huang and Shih-Wen Chung. 2025. Arisaema globiceps (Araceae), A New Species from Taiwan. Taiwania. 70(2); 281-284. DOI: 10.6165/tai.2025.70.281 [01 April 2025] | ||||||||||
| 2:46p | [Botany • 2025] Thismia aliasii (Thismiaceae) • A New Species from Terengganu, Peninsular Malaysia
Abstract A new mycoheterotrophic species, Thismia aliasii, is described and illustrated. This species inhabits a hill dipterocarp forest in mountains of eastern Peninsular Malaysia. Thismia aliasii differs from other Thismia species by the following features: tepals equal in size and shape with different length of their appendages, appendages of the outer tepals shorter than those of the inner tepals (3.5 mm vs. ca. 26–32 mm long), stamen supraconnective at apex with three long filiform appendages and two acute appendages, and the margins of individual connectives abaxially raised into a conspicuous rib. With respect to floral morphology, T. aliasii should be placed to Thismia subsect. Odoardoa. According to the categories and criteria of the IUCN Red List, T. aliasii is provisionally classified as Critically Endangered (CR). Key words: Achlorophyllous plants, endemism, Gunung Chemerong, Monocots, Terengganu, Thismia subsection Odoardoa
Thismia aliasii Siti-Munirah, sp. nov. Diagnosis. Thismia aliasii is very similar to the species of the T. subsection Odoardoa, as the tepals are the same in shape and size. However, the tepal appendages of the new species are of unequal length, the inner ones are longer than the outer ones, while the tepal appendages of the other species are of equal length. In addition, in the new species the margins of the individual connectives are raised abaxially into the conspicuous rib, whereas connectives are almost flat abaxially in the rest of the species.
Etymology: The species is named after Mr. Alias (the second author), a current ranger of the Terengganu Forestry Department (JPNT), who is also a freelance photographer (known as John Sp) and who was the first to discover the species. Mat Yunoh Siti-Munirah and Shakri Mohamad Alias. 2025. Thismia aliasii (Thismiaceae), A New Species from Terengganu, Peninsular Malaysia. PhytoKeys. 254: 175-188. DOI: doi.org/10.3897/phytokeys.254.136085 | ||||||||||
| 4:12p | [Botany • 2025] Pilosella kalinensis (Asteraceae) • A New diploid Species in P. sect. Alpicolinae from the Rila Mountains in Bulgaria
Pilosella kalinensis is a new, diploid species, discovered in extreme habitats on the highest peaks in the Rila Mountains in Bulgaria. It belongs to the P. alpicola aggregate within P. sect. Alpicolinae and is distinguished by having somewhat larger capitula covered with very dense, long, blackish, straight trichomes. It is endangered by hybridization with P. rhodopea. Key words: Balkan Peninsula, Compositae, hybridization, Pilosella, ploidy level, taxonomy, Eudicots
Pilosella kalinensis Szeląg & Vladimirov, sp. nov.
Zbigniew SZELĄG and Vladimir VLADIMIROV. 2025. Pilosella kalinensis (Asteraceae), A New diploid Species in P. sect. Alpicolinae from the Rila Mountains in Bulgaria. Phytotaxa. 694(2); 201-204. DOI: doi.org/10.11646/phytotaxa.694.2.8 [2025-03-20] | ||||||||||
| 4:30p | [Paleontology• 2025] Dysopodus gezei • A 125 Million-year-old freshwater Isopod shines new light on the Origin of Subterranean Freshwater Species
Abstract Here, we report fossil isopods preserved in laminated oil-shale mudstone (dysodile) from the Lower Cretaceous of Lebanon (Lower Barremian, 125 Ma, Grès du Liban Alloformation, Jezzine District). Based on a variety of proxies, their palaeoenvironments are determined to have been a shallow freshwater lake. The fossil isopods were studied using modern imaging techniques, such as multispectral imaging and photometric stereo, allowing for a detailed comparison of these specimens with comparable extant and fossil taxa. The conspecific fossils are herein recognized as remains of a new species—†Dysopodus gezei gen. et sp. nov.—of uncertain affinity within Cymothoida and bearing a strong resemblance to its non-parasitic lineages (Cirolanidae). A conspicuous pleotelson and uropod morphology set it apart from most species, with the notable exception of †Pseudoplakolana chiapaneca gen. nov. et comb. nov. from the Cretaceous of Mexico, originally attributed to an Australasian lineage (herein disputed). So far, the biogeographical distribution of the peri-Mediterranean underground fauna has predominantly been explained through a passive isolation process of former marine species, driven by regressing coastlines. Stemming from a freshwater lake environment, the 125 million-year-old fossils from Lebanon provide an unconventional perspective on the evolutionary origin of extant cave- and groundwater-dwelling cymothoidans.
 Mario Schädel, Dany Azar, Layla El Hajj, Sibelle Maksoud and Ninon Robin. 2025. A 125 Million-year-old freshwater Isopod shines new light on the Origin of Subterranean Freshwater Species. R. Soc. Open Sci. 12; 241512. DOI: doi.org/10.1098/rsos.241512 [02 April 2025] |
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