Bacidina mendax sp. nov., a new widespread species in Central Europe, together with a new combination within the genus Bacidina

2018 ◽  
Vol 50 (1) ◽  
pp. 43-57 ◽  
Author(s):  
Paweł CZARNOTA ◽  
Beata GUZOW-KRZEMIŃSKA

AbstractBacidina mendax, described here as a new lichen species, appears to be common and widespread, at least in Central Europe. Analyses of the ITS rDNA region and the morphology of specimens showed an intraspecific variation in the new taxon. It differs from B. neosquamulosa in the lack of a subsquamulose thallus, and from B. caligans in its longer and only slightly curved to apically hooked conidia and lack of a granular (sorediate) thallus. Since ITS rDNA data support the inclusion of Bacidia pycnidiata Czarnota & Coppins in the genus Bacidina, a new combination is proposed.

Phytotaxa ◽  
2020 ◽  
Vol 459 (2) ◽  
pp. 117-123
Author(s):  
WAN-HAO CHEN ◽  
YAN-FENG HAN ◽  
JIAN-DONG LIANG ◽  
ZONG-QI LIANG

During a survey of entomopathogenetic fungi from Southwest China, a new species, Akanthomyces lepidopterorum was found on an undetermined lepidopteran larva. It differs from other species based on mostly smaller conidia, mononematous conidiophores and moderate length of phialide. Both the morphological identification and phylogenetic analysis of combined ITS, LSU and RPB2 sequence data support A. lepidopterorum as a new species. A new combination is also proposed in the genus Akanthomyces.


Zootaxa ◽  
2020 ◽  
Vol 4750 (4) ◽  
pp. 524-544
Author(s):  
FRANK E. ETZLER

Three new North American species of Paradonus Stibick are described: Paradonus gallatinensis new species, Paradonus gustafsoni new species and Paradonus stibicki new species is described for specimens formerly called Paradonus pectoralis sensu Stibick, 1991. The type species of the genus, Paradonus pectoralis Say, 1839 is redefined, and the Holotype of Paradonus olivereae Stibick, 1991 is designated as the Neotype of P. pectoralis, a common, widespread species. The genus is redescribed, a checklist of species is included, and notes on the described species north of Mexico are given. Hypnoidus guatemalensis Champion, 1895 is removed from the genus and placed in Zorochros Thompson, 1858 as Zorochros guatemalensis (Champion, 1895) new combination. A key to all described species north of Mexico is provided, along with illustrations of characters used in identifying species. 


Phytotaxa ◽  
2020 ◽  
Vol 453 (3) ◽  
pp. 199-217
Author(s):  
JUAN BERNARDO LARRAÍN ◽  
SANNA HUTTUNEN ◽  
ELENA IGNATOVA ◽  
MICHAEL IGNATOV

We present a description of the new species Rhynchostegium occultum from central Chile, including illustrations, a distribution map, and preliminary molecular data that supports its taxonomic placement. The new taxon is restricted to coastal relict forests of central Chile. An overview of the Chilean taxa of Rhynchostegium, and a key for local species are also provided. The new combination Rhynchostegium corralense, and new synonyms for Rhynchostegium acanthophyllum and for Cratoneuropsis chilensis are proposed. Oxyrrhynchium hians is newly reported for Chile, apparently being a recent introduction. Lectotypes are selected for Hypnum corralense, Hypnum acanthophyllum, and for Rhynchostegiella acanthophylla var. robusta.


Phytotaxa ◽  
2016 ◽  
Vol 265 (1) ◽  
pp. 92 ◽  
Author(s):  
FABRIZIO BARTOLUCCI ◽  
GABRIELE GALASSO

The genus Liparis Richard (1817: 21) comprises about 320 species, broadly distributed worldwide but mainly in tropical and subtropical areas (Pridgeon et al. 2005). In Europe only the circumboreal L. loeselii (Linnaeus 1753: 947) Richard (1817: 38) occurs (Hultén & Fries 1986). Recently the new taxon L. loeselii (L.) Rich. subsp. nemoralis Perazza et al. (2012: 489) was described from northeastern Italy. It is endemic to Friuli Venezia Giulia, Veneto and Trentino-Alto Adige (Perazza & Lorenz 2013, Peruzzi et al. 2014).


2021 ◽  
Author(s):  
Patrick Alexander

Pellaea ovata is a widespread species, sexual diploid in Texas & northeastern Mexico but an apogamous triploid in northwestern Mexico, south to northern Argentina, & on Hispaniola. The type belongs to the southern, apogamous triploid form. Although these two forms have been discussed repeatedly in the literature, morphological distinctions between them have been overlooked and they have not been recognized taxonomically. However, they are distinct. Pellaea ovata s.s. has puberulent rachides & costae; pinnae usually 2-pinnate with a well-defined main axis & pinnules borne singly; fertile pinnules ovate, cordate basally & rounded apically. The sexual diploid form has rachides & costae glabrous; pinnae pseudo-dichotomously branched & pinnules usually paired; fertile pinnules narrowly rounded-trapeziform, obliquely truncate to cordate basally & truncate apically. Riddell named the sexual diploid form Pteris zygophylla, from which I give it the new combination Pellaea zygophylla.


Author(s):  
Alberto Sendra ◽  
Dieter Weber

An unexpected new subgenus and species of Campodeidae (Diplura), Plusiocampa (Pentachaetocampa) inopinata subgen. et sp. nov., a troglobitic species found in Schallsinger Höhle in an isolated karstic region in southwestern Germany is described. The new taxon shows two unique characters for the genus Plusiocampa: five dorsal femoral macrosetae and the presence of g1-glandular setae in females. Two other Plusiocampa species have been studied and taxonomic remarks made for them; both are also cave dwelling species from Germany: Plusiocampa dobati Condé in Dobat, 1975 studied from eight caves in the Swabian Alb, and one unnamed species of Plusiocampa (Plusiocampa) from four caves in the Franconian Alb. The biogeographical and taxonomic affinities among Plusiocampa species of Central Europe are discussed. The distribution of Plusiocampa species in Central Europe runs alongside the frontier of the Pleistocene glaciations, with non-troglomorphic Plusiocampa species adjacent to the glacial limits and troglomorphic Plusiocampa species below. Worthy of note is the presence only in the northeast of the Central Alps of two relict Plusiocampinae species, the already known Hystrichocampa pelletieri Condé, 1948 and the new species P. (P.) inopinata subgen. et sp. nov.


2020 ◽  
Vol 193 (3) ◽  
pp. 375-401 ◽  
Author(s):  
Thomas D J Sayers ◽  
Martin J Steinbauer ◽  
Kevin Farnier ◽  
Rebecca E Miller

Abstract The process of pollinator-driven evolution is best studied at the level of populations and among closely related plant species. Araceae provide a plant model for investigating plant–pollinator interactions, but few studies have investigated intraspecific variation in their pollination systems. Typhonium brownii (Araceae) is distributed widely across 2000 km from tropical to temperate latitudes in Australia, yet the existence of intraspecific variation and ecotypes has not been investigated. Typhonium brownii from five regions, potentially representing distinct taxa, and populations of the sister species, T. eliosurum, were studied to explore pollinator and floral trait divergence. We characterize significant intraspecific floral trait variation in T. brownii, indicating the existence of a species complex, despite the taxa trapping similar Coleoptera (Staphylinidae, Scarabaeidae). Although all T. brownii showed similar temperature increases in the appendix, there were significant shifts in the timing and pattern of thermogenic and anthesis rhythms between regions (taxa), and all T. brownii taxa had distinct scent compositions, with T. sp. aff. brownii being the most dissimilar to other taxa. In contrast, T. eliosurum inflorescences almost exclusively trapped Diptera (Sphaeroceridae, Psychodidae), had modest temperature increases confined to the staminate zone and had a distinct scent profile which differed from all T. brownii taxa; this scent was confirmed in field bioassays to be important for pollinator attraction. Prevalent volatile organic compounds (VOCs) emitted by T. eliosurum and T. brownii taxa included the common dung constituents skatole, indole and p-cresol. Typhonium eliosurum and T. brownii taxa further differed significantly in morphology and trapping mechanisms, particularly the fly-pollinated T. eliosurum. It is possible that a subset of ubiquitous VOCs identified in T. eliosurum and T. brownii taxa attract local communities of dung-seeking flies and beetles, and that floral morphological features are more important for trapping different insect orders in these dung mimics.


2020 ◽  
Vol 52 (4) ◽  
pp. 261-266
Author(s):  
Damien Ertz ◽  
André Aptroot ◽  
Neil Sanderson ◽  
Brian Coppins ◽  
Dries Van den Broeck ◽  
...  

AbstractA new species of Synarthonia, S. leproidica, is described from Luxembourg. Phylogenetic analyses of mtSSU and RPB2 sequences were used to determine the generic affiliation of this sterile species. Synarthonia leproidica differs from all other species of the genus by the combination of a leproid thallus and the production of psoromic acid. It is the sister species to S. muriformis in our phylogenetic analyses. The discovery of the new species suggests that other strictly sorediate lichen species might have been overlooked in Europe, even in intensely explored countries such as Luxembourg. Phylogenetic analyses further confirm the placement of Reichlingia anombrophila in the genus Reichlingia and of Synarthonia astroidestera in the genus Synarthonia. Arthonia atlantica is transferred to the genus Reichlingia as R. dendritica.


2016 ◽  
Vol 50 ◽  
pp. 231-242 ◽  
Author(s):  
T. V. Makryi

The objective of the study was to conduct a thorough anatomical, morphological and taxonomic study of the species of the lichen genus Peltula from Baikal Siberia belonging to the group with peltate-umbilicate sorediate thallus (euploca-bolanderi-type). Until now, among over 40 Peltula species, only four ones belonged to this group (P. africana, P. bolanderi, P. euploca and P. farinosa). In addition to the widespread species P. euploca, two new species have been identified, essentially different from all the four previously known members of the group, primarily by the expressed polyphyllous character of the thallus. Descriptions of the new species, P. pannarioides and P. rosulata, with their macro and micro photos and a map of their distribution, are provided. P. pannarioides is characterized by a thick polyphyllous thallus, upturned undulate sorediate margins of lobes, brown-grey reticulate-grained pruinose upper surface, large granulose soredia, thick cracked epinecral layer, and medulla composed of densely interwoven periclinally oriented hyphae. P. rosulata is characterized by thin polyphyllous thallus, upturned undulate sorediate margins of lobes, dark-brown, smooth, matte upper surface, large granulose soredia, thin continuous brownish epinecral layer, and medulla composed of loosely interwoven periclinally and anticlinally oriented hyphae. The territory of Baikal Siberia and of Southern Siberia as a whole may be regarded as one of the centers of the species diversity of genus Peltula, namely of the group of species with polyphyllous umbilicate sorediate thallus. The entire complex of the species with the euploca-bolanderi-type thallus requires more detailed study.


Zootaxa ◽  
2018 ◽  
Vol 4527 (3) ◽  
pp. 323 ◽  
Author(s):  
JUAN M. GUAYASAMIN ◽  
ALEJANDRO ARTEAGA ◽  
CARL R. HUTTER

Reserva Las Gralarias is one of the best-studied localities of the Ecuadorian Andes in terms of its batrachofauna. However, as expected in any community, some species are rare and, therefore, their discovery and description are problematic. Herein, based on a single specimen, we describe Pristimantis gralarias sp nov. Even though we are aware of the problems associated to singleton species (i.e., unknown intraspecific variation, limited ecological information), our efforts to finding additional specimens have been unsuccessful. Thus, given the importance of species descriptions in threatened areas (e.g. Andes), and that the new taxon is supported by both morphological and genetic data, we consider that the description is justified. Pristimantis gralarias sp nov is easily distinguished from all other members of the P. myersi group by its long and slender fingers and toes, with discs that are not expanded laterally (or are only slightly expanded). Furthermore, the new species is characterized by having a black venter with minute white spots and a red groin. A molecular phylogeny corroborates the placement of the new species in the P. myersi group and its distinctiveness in relation to other species. Finally, we discuss on the limitations and advantages associated to species descriptions based on one or few specimens. 


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