Article
Plant Sciences
Jeong Chan Kang, Showe-Mei Lin, Kathy Ann Miller, Myung Sook Kim
Summary: The cosmopolitan species of Acrosorium with hook-forming thalli have been merged under the name of Acrosorium ciliolatum after a long and complicated nomenclatural history. Specimens from various locations show intraspecific variation and can be separated into four clades based on rbcL phylogeny. The taxon A. flabellatum exhibits extreme variations in external blade morphology, with the absence or presence of terminal hook-like structures as a distinguishing feature. Further study is needed on European and southern hemisphere specimens and the ambiguous position of California specimens.
Article
Engineering, Marine
D. Wilson Freshwater, Cathryn E. Miller, Thomas A. Frankovich, Michael J. Wynne
Summary: Epizoic macroalgae collected from West Indian manatees' skin include two novel species of Caloglossa, Caloglossa kamiyana and Caloglossa manaticola. These species show morphological and genetic divergence from their closely related taxa.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2021)
Article
Plant Sciences
Jeong Chan Kang, Hyung Woo Lee, Myung Sook Kim
Summary: Through morphological and molecular analyses of Nienburgella angusta collected from the East Sea of South Korea, it was found that this species is more closely related to Phycodrys radicosa, leading to the proposal of transferring both Nienburgella angusta and the monospecific genus Nienburgella to the genus Phycodrys.
Article
Plant Sciences
Danilo E. Bustamante, Boo Yeon Won, Michael J. Wynne, Tae Oh Cho
Summary: Recent segregation of 12 genera in the tribe Streblocladieae has updated the taxonomy of certain species belonging to Polysiphonia sensu lato, with new combinations being proposed. Six new additions to the tribe have been made based on morphological and molecular analyses, including the description of a new species and proposal of new combinations. The study also identified additional diagnostic features for two genera within the tribe, providing insights into distribution, diagnostic features for delimiting genera morphologically, and molecular evolutionary relationships.
JOURNAL OF PHYCOLOGY
(2021)
Article
Plant Sciences
Marion A. Wolf, Katia Sciuto, Christine A. Maggs, Antonella Petrocelli, Ester Cecere, Alessandro Buosi, Adriano Sfriso
Summary: This study identified genetic and morphological differences between Radicilingua specimens from the Mediterranean and previously known species, leading to the description of a new species R. mediterranea. Additionally, the study suggested transferring Calonitophyllum medium to Radicilingua based on phylogenetic analysis.
Article
Marine & Freshwater Biology
Yukimasa Yamagishi, Kazuhiro Kogame, Michio Masuda
Summary: A new red alga species, Dasya japonovillosa, is introduced from Japan. This species, as well as D. enomotoi, were previously misidentified as D. villosa by researchers in Japan due to their elongated axes densely covered with soft monosiphonous filaments. Dasya villosa can be distinguished from D. japonovillosa and D. enomotoi by the presence of five pericentral cells in transverse sections and palisade-like tetrasporangial cover cells. The unique characteristics of the new species include elongated axis (up to 65 cm), subdichotomously divided axes and polysiphonous branches, indistinct pericentral cells in transverse sections except near the apices, enlarged inner cortical cells, radially arranged numerous soft monosiphonous filaments, three-celled carpogonial branches, four tetrasporangia in each fertile segment of the stichidia, and one (rarely two) tetrasporangial cover cell that is not elongated longitudinally and rarely divided transversely.
PHYCOLOGICAL RESEARCH
(2022)
Article
Plant Sciences
Eugeny Boltenkov, Elena Artyukova, Anna Trias-Blasi
Summary: This study revised the taxonomy of Iris subser. Chrysographes through molecular and morphological studies, confirming its monophyletic nature and identifying four distinct lineages within the group. Additionally, it provided a revised taxonomic treatment and an identification key for the species in this group.
Article
Plant Sciences
Jillian M. Freese, Christopher E. Lane
Summary: Red algal parasites are highly host specific organisms that are morphologically reduced with decreased pigmentation. Molecular data have repeatedly demonstrated that red algal parasites often resolve within the same genus as their hosts, rather than forming a monophyletic parasitic genus.
Article
Microbiology
Ya-Fen Hu, Jing-Wen Liu, Xing-Xing Luo, Zhao-Huan Xu, Ji-Wen Xia, Xiu-Guo Zhang, Rafael F. Castaneda-Ruiz, Jian Ma
Summary: Eight new species of Distoseptispora were identified in southern China based on morphological and molecular phylogenetic analyses. These species were collected from dead branches of unidentified plants. This study contributes to our understanding of the diversity of Distoseptispora in southern China.
MICROBIOLOGY SPECTRUM
(2023)
Article
Plant Sciences
David L. L. Ballantine, James N. N. Norris, Gabe P. P. Johnson, Hector J. J. Ruiz
Summary: A new subtidal species of Dasya was discovered in the offshore algal plains of Puerto Rico and Grenada in the Caribbean. This species has pigmented lateral branchlets, giving it a shaggy appearance, and shows genetic affinity to the Bermudian Dasya cryptica and superficial resemblance to Pacific D. anastomosans. It differs from other Atlantic congeners and non-Atlantic members of the Dasya cryptica complex both genetically and in the presence of rhizoids among its pericentral and enlarged inner cortical cells.
Article
Plant Sciences
Margaret M. Cassidy, Craig W. Schneider, Gary W. Saunders
Summary: Molecular studies of Dasya genus in Bermuda revealed two new species and reclassified known species. The study also uncovered the relationship between Dasya and Dasysiphonia.
JOURNAL OF PHYCOLOGY
(2022)
Article
Entomology
Maria Olalla Lorenzo-Carballa, Rosser W. Garrison, Andrea C. Encalada, Adolfo Cordero-Rivera
Summary: This study used molecular and morphological analyses to determine the specific identity of dragonflies in the Galapagos Islands, identifying them as a continental species Tramea calverti rather than the previously considered T. cophysa. This shows that the species named after Darwin is a valid species inhabiting both the Galapagos islands and continental America.
Article
Plant Sciences
Maggie M. M. Reddy, Jamie du Plessis, Rouvay Roodt-Wilding, Robert J. J. Anderson, John J. J. Bolton
Summary: The taxonomy of the red algal genus Plocamium remains problematic, and a study on this genus in South Africa has identified several species using morphological and molecular approaches. Plocamium robertiae is reinstated as a distinct species, while Plocamium raphelisianum is placed in synonymy with P. suhrii. Additional species were also identified, but further morphological assessment is needed.
Article
Plant Sciences
Nataly Quiroz-Gonzalez, Ma Edith Ponce-Marquez, Norma Lopez-Gomez, Deni Rodriguez
Summary: The study evaluated the Mexican species Gelidium pusillum in the tropical region of the Mexican Pacific using morphological and molecular approaches, identifying distinct differences from related species and proposing the new species Gelidium nayaritense sp. nov. The research also records G. sanyaense for the first time in Mexico and Eastern Pacific.
Article
Plant Sciences
Panangattu Sankarji Jayalakshmi, Jose John, Arya Sidharthan
Summary: A new species of the freshwater red algal genus Kumanoa, Kumanoa periyarensis, is described based on morphology and genetic data. It is distinguished from other species by its unique combination of morphological characters and is genetically distinct from its sister species, Kumanoa tabagatenensis.