scholarly journals New Species of Chloroidium (Trebouxiophyceae, Chlorophyta) from East Asia

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2560
Author(s):  
Andrey A. Gontcharov ◽  
Arthur Yu. Nikulin ◽  
Vyacheslav Yu. Nikulin ◽  
Veronika B. Bagmet ◽  
Rezeda Z. Allaguvatova ◽  
...  
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Morphological Characteristics ◽  
Aquatic Environments ◽  
Soil Algae ◽  
Monsoon Climate ◽  
Distinct Mode ◽  
Mode Of Reproduction ◽  
Rdna Sequence Data ◽  
A New Species

Chlorella-like green algae that reproduce only asexually by immotile autospores or motile zoospores are the most typical inhabitants of non-aquatic environments. They have a simple morphology that hampers their differentiation, but algae of such habit represent a diverse array of lineages, which are mostly in the classes Chlorophyceae and Trebouxiophyceae. One of these lineages is the order Watanabeales (Watanabea clade; Trebouxiophyceae), which comprises 10 genera that share a distinct mode of reproduction through unequally sized autospores. Most of these genera account for a few species that are rarely recorded in nature. In contrast, the genus Chloroidium is one of the most species-rich and widely distributed members of the order. Three strains of coccoid green alga were isolated during a study of soil algae in the temperate monsoon climate zone of Asia. These strains are described here as a new species, Chloroidium orientalis. SSU and ITS rDNA sequence data, morphological characteristics, and life cycle features differentiate these strains from known members of the genus.

Deniquelata quercina sp. nov.; a new endophyte species from Persian oak in Iran

Phytotaxa ◽  
2019 ◽  
Vol 405 (4) ◽  
pp. 187 ◽  
Author(s):  
AMIN ALIDADI ◽  
MOJEGAN KOWSARI ◽  
MOHAMMAD JAVAN-NIKKHAH ◽  
SAADI KARAMI ◽  
HIRAN A. ARIYAWANSA ◽  
...  
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Morphological Characteristics ◽  
Bayesian Analyses ◽  
Zagros Forests ◽  
Oak Trees ◽  
Rdna Sequence Data ◽  
Molecular Phylogenetic ◽  
Quercus Brantii ◽  
A New Species

In this study, a new endophyte species within the genus Deniquelata (Didymosphaeriaceae) was isolated from the branches of Persian oak trees (Quercus brantii) in Zagros forests, Iran. The maximum parsimony and Bayesian analyses of 18S, 28S and ITS, rDNA sequence data revealed that the isolates were distinct from other species of the Deniquelata. Based on molecular phylogenetic and morphological characteristics, this fungus was demonstrated to be a new species, Deniquelata quercina. Detailed descriptions and illustrations were provided for D. quercina and it was compared with other known species in the genus.

A new species of Usnea (Parmeliaceae, lichenized Ascomycota) from Southwest China

Phytotaxa ◽  
2020 ◽  
Vol 472 (1) ◽  
pp. 23-32
Author(s):  
LIU-FU HAN ◽  
YU-HUAN XIE ◽  
HUAN-BING ZHANG ◽  
LI-SI LI ◽  
SHOU-YU GUO
Keyword(s):  
New Species ◽  
Southwest China ◽  
Sequence Data ◽  
Morphological Characteristics ◽  
Its Sequence ◽  
Nrdna Its ◽  
A New Species

During the study of Usnea from China, we identified and illustrated a new species, Usnea sulphuridiscoidea S. Y. Guo & L. F. Han from the Ailaoshan Mountain of Southwest China, based on morphological characteristics and nrDNA ITS sequence data. This new species can be distinguished morphologically from other apotheciate members of Usnea by the special lateral apothecia with sulphur disc, the inflated branches with glossy surface and numerous papillae as well as many fibrils, meanwhile lacking pseudocyphellae and soralia. The nrDNA ITS sequence data supported the recognition of the new species.

New taxa in Drosanthemum and a new genus in Drosanthemeae (Ruschioideae, Aizoaceae)

Phytotaxa ◽  
2020 ◽  
Vol 459 (2) ◽  
pp. 139-154
Author(s):  
CORNELIA KLAK ◽  
PAVEL HANÁČEK ◽  
ODETTE CURTIS-SCOTT ◽  
ANSO LE ROUX ◽  
PETER V. BRUYNS
Keyword(s):  
South Africa ◽  
New Species ◽  
New Genus ◽  
Sequence Data ◽  
Morphological Characteristics ◽  
Molecular Data ◽  
Western Cape ◽  
Monotypic Genus ◽  
Nomenclatural Change ◽  
A New Species

A phylogeny of all nine subgenera of Drosanthemum, based on chloroplast sequence-data, is presented. The results confirm some previously published facts, e.g. that D. zygophylloides is sister to Drosanthemum. We propose to treat this species as a new monotypic genus, Lemonanthemum, which differs from Drosanthemum in features of the leaves and fruit-stalks. In Drosanthemum s.s., the small subg. Quadrata, characterized by 4-locular fruits, is highly supported as sister to the remainder of Drosanthemum (where fruits are 5-locular). Further, our data support the transfer of Delosperma pubipetalum to Drosanthemum (where a nomenclatural change is also made). The pubescent petals, 5-locular fruits with narrow covering membranes and downward-pointing hair-like papillae on the branches suggest that D. pubipetalum is close to D. papillatum and belongs to subg. Quastea. Another species, D. badspoortense, which had been placed in D. subg. Quastea on account of its narrow covering membranes, is shown to belong to Delosperma and also lacks the unique structure of the fruit-stalk of Drosanthemum. In addition, a new species, D. overbergense, is described from disjunct patches of remnant renosterveld within the Overberg and near Albertinia, in the Western Cape of South Africa. Morphological characteristics suggest that this species belongs to subg. Xamera, but this was not corroborated by our molecular data. Finally, a new name—Drosanthemum calcareum—is proposed for the illegitimate D. intermedium and a lectotype (at BOL) is designated for D. pubipetalum. The lectotypification of D. badspoortense is also proposed.

A new and endangered species of Iochroma (Solanaceae) from the cloud forests of central Peru and its phylogenetic position in Iochrominae

Phytotaxa ◽  
2015 ◽  
Vol 227 (2) ◽  
pp. 147 ◽  
Author(s):  
Marco Antonio Cueva Manchego ◽  
STACEY DEWITT SMITH ◽  
SEGUNDO LEIVA GONZÁLES
Keyword(s):  
New Species ◽  
Endangered Species ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Phylogenetic Position ◽  
Cloud Forests ◽  
Dna Sequence Data ◽  
A New Species ◽  
Iucn Criteria

Iochroma amicorum M. Cueva, S. D. Sm. & S. Leiva (Solanaceae), a new species from cloud forests of Central Peru, is described and illustrated. Phylogenetic analyses of DNA sequence data suggest that Iochroma amicorum is closely related to I. nitidum, I. umbellatum, I. grandiflorum and I. tingoanum, which collectively form the “U” clade of Iochrominae. Certain morphological characteristics of calyx and corolla as well as the type of habitat appear to be common in species of this clade. Iochroma amicorum is easily distinguished from other members of the “U” clade by its campanulate or funnel-shaped corolla with short and slightly reflexed lobes, the presence of an expanded stapet at the point of filament insertion with short lateral extensions united to the corolla, and its globose usually white fruits with tinges of purple at the base. Distribution, phenology and are discussed together with the position of the new species in Iochrominae. Iochroma amicorum is assessed as Endangered according to IUCN criteria B1ab (i, iii)

A new species of Ephoron Williamson, 1802 (Ephemeroptera: Polymitarcyidae) from Thailand

Zootaxa ◽  
2021 ◽  
Vol 4985 (3) ◽  
Author(s):  
CHOTIWUT TECHAKIJVEJ ◽  
NATTAWUT SAREEIN ◽  
JEONG MI HWANG ◽  
YEON JAE BAE ◽  
CHITCHOL PHALARAKSH
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Dna Barcode ◽  
Morphological Characteristics ◽  
Future Research ◽  
Polar Cap ◽  
The World ◽  
Frontal Process ◽  
New Species Description ◽  
A New Species

The genus Ephoron Williamson, 1802 is widely distributed around the world. In Thailand, only Ephoron indicus Pictet, 1843 was reported in 1961. In this study, a new Ephoron mayfly is described as Ephoron ookaewae sp. nov. In this new species description, the morphological characteristics of larvae and eggs in addition to adults are also shown in detail. Number of tubercles on mandibular tusks, and a median frontal process in larvae, distinguish Ephoron ookaewae sp. nov. from other Ephoron species. Their polar cap shape and a concave indentation in their eggs are also unusual. In addition, the mitochondrial DNA COI sequence data of the newly described Ephoron ookaewae sp. nov. is registered in GenBank. Registration of sequence data for the DNA barcode region of Ephoron mayflies inhabiting the Oriental region remains limited, however it will be useful for future research.

Xanthagaricus siamensis sp. nov. (Agaricaceae), a new species with dull green lamellae from northern Thailand

Phytotaxa ◽  
2020 ◽  
Vol 437 (1) ◽  
pp. 14-22
Author(s):  
YUAN S. LIU ◽  
JIAN-KUI (JACK) LIU ◽  
PHONGEUN SYSOUPHANTHONG ◽  
KEVIN D. HYDE ◽  
SAISAMORN LUMYONG
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Large Subunit ◽  
Morphological Characteristics ◽  
Molecular Data ◽  
Nuclear Ribosomal Dna ◽  
Molecular Evidence ◽  
Internal Transcribed Spacer Region ◽  
Northern Thailand ◽  
A New Species

Xanthagaricus siamensis, a new species in the family Agaricaceae, was discovered in northern Thailand and is here introduced based on its morphological features and molecular data. It is characterized by small to medium-sized basidiomata, a convex to plano-convex with depressed center pileus when mature, the presence of greyish orange to violet-brown fibrillose squamules on the pileus, lamellae that start out white, change to pinkish white when damaged, then change to dull green with age. Additionally, the annulus is fugacious, and the pileipellis is recognized as a cutis which morphologically distinguishes it from all other known Xanthagaricus. Phylogenetic analysis of the internal transcribed spacer region (ITS) and the large subunit of the nuclear ribosomal DNA (nrLSU) sequence data indicated that the three specimens of X. siamensis form a distinct lineage within Xanthagaricus, and they formed a well-supported clade representing the genus Xanthagaricus. Detailed illustrations of macro- and micro-morphological characteristics and descriptions are provided, as well as other relevant molecular evidence.

A new species of Trichoglossum (Geoglossales, Ascomycota) from Thailand

Phytotaxa ◽  
2017 ◽  
Vol 316 (2) ◽  
pp. 161 ◽  
Author(s):  
ANUSHA H. EKANAYAKA ◽  
KEVIN D. HYDE ◽  
E.B. GARETH JONES ◽  
QI ZHAO ◽  
ABDALLAH M. ELGORBAN ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Tree ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Its Sequence ◽  
Morphological Examination ◽  
Molecular Phylogenetic ◽  
A New Species

The genus Trichoglossum (Geoglossaceae) is characterized by black, clavate, stipitate apothecia with hymenial setae. We collected T. cf. octopartitum from China and a new species of Trichoglossum from Thailand, the latter named as T. septatum. According to morphological examination and molecular phylogenetic analyses of ITS sequence data, T. septatum diverges from other Trichoglossum species. Full descriptions, colour figures, and a phylogenetic tree to show the positions of T. cf. octopartitum and T. septatum are provided, and the two species are compared with allied taxa. The important morphological characteristics of Trichoglossum species are also summarized.

A new Agonimia from Europe with a flabelliform thallus

2011 ◽  
Vol 44 (1) ◽  
pp. 55-66 ◽  
Author(s):  
Beata GUZOW-KRZEMIŃSKA ◽  
Josef P. HALDA ◽  
Paweł CZARNOTA
Keyword(s):  
Czech Republic ◽  
New Species ◽  
Great Britain ◽  
Dna Sequences ◽  
Sequence Data ◽  
Small Subunit ◽  
The Czech Republic ◽  
Rdna Sequence Data ◽  
Small Subunit Ribosomal Dna ◽  
A New Species

AbstractAgonimia flabelliformis sp. nov. (Verrucariaceae, Ascomycota) is described as a new species from the Czech Republic, Germany and Great Britain. Except for the distinctive, flabelliform to minutely coralloid thallus the species mostly resembles A. allobata. It differs from other related species of Agonimia in the absence of cortical papillae and in ascospore size. The distinctness of the new species and its placement within the genus Agonimia is supported by analyses of mitochondrial small subunit ribosomal DNA sequences from several samples of the taxon, and from many other representatives of Verrucariales including newly sequenced A. repleta and A. vouauxii. Additionally, ITS rDNA sequence data supports the distinction of A. flabelliformis from A. allobata. However, A. allobata was found to be highly variable and relationships, as well as the monophyly of taxa within Agonimia, are still unresolved and need further investigation.

Morphology and phylogeny of a new species, Pseudocercospora haldinae (Mycosphaerellaceae) on Haldina cordifolia from India

Phytotaxa ◽  
2021 ◽  
Vol 501 (2) ◽  
pp. 281-292
Author(s):  
SANJAY YADAV ◽  
SANJEET KUMAR VERMA ◽  
VINAY KUMAR SINGH ◽  
RAGHVENDRA SINGH ◽  
ARCHANA SINGH ◽  
...  
Keyword(s):  
New Species ◽  
Internal Transcribed Spacer ◽  
Sequence Data ◽  
Large Subunit ◽  
Closely Related Species ◽  
Host Genus ◽  
Rdna Sequence Data ◽  
Agar Media ◽  
Characteristic Features ◽  
A New Species

Pseudocercospora haldinae, a new anamorphic foliicolous hyphomycetous fungus discovered on living leaves of Haldina cordifolia (Rubiaceae) is taxonomically described and illustrated. This species is compared with closely related species of Pseudocercospora and other dematiaceous cercosporoid forms reported on the same host genus. The phylogeny of this species has been inferred from partial nuclear ribosomal 28S large subunit (LSU) and complete internal transcribed spacer (ITS) rDNA sequence data. On the basis of LSU, P. haldinae represents characteristic features of Pseudocercospora s. str. and did not form red crystals when cultivated on agar media.

Colletotrichum dracaenigenum, a new species on Dracaena fragrans

Phytotaxa ◽  
2021 ◽  
Vol 491 (2) ◽  
pp. 143-157
Author(s):  
NAPALAI CHAIWAN ◽  
SAOWALUCK TIBPROMMA ◽  
RUVISHIKA S. JAYAWARDENA ◽  
AUSANA MAPOOK ◽  
DHANUSHKA N. WANASINGHE ◽  
...  
Keyword(s):  
New Species ◽  
Species Complex ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Morphological Characterization ◽  
Full Description ◽  
New Taxon ◽  
Asexual Morphs ◽  
A New Species

During an investigation into the microfungi on Dracaena fragrans in Thailand, a saprobic taxon belonging to Glomerellaceae was collected. Based on morphological characterization and combined phylogenetic analyses of ITS, GAPDH, CHS-1, ACT and TUB2 sequence data from the sexual and asexual morphs our taxon was identified as a new species of Colletotrichum. Colletotrichum dracaenigenum sp. nov. is introduced here with a full description, colour photographs of morphological characteristics and a phylogenetic tree to show the placement of the new taxon in the gloeosporioides species complex.

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