Gelidium guimaraesiae sp. nov. (Gelidiaceae, Rhodophyta) from the Western Atlantic segregated from G. floridanum by morphological and molecular evidence

Phytotaxa ◽  
2019 ◽  
Vol 388 (4) ◽  
pp. 275 ◽  
Author(s):  
BEATRIZ BRUNELLI ◽  
DANIELA MILSTEIN ◽  
SUNG M. BOO ◽  
MUTUE T. FUJII

The Gelidium species are susceptible to a great phenotypic plasticity. In this genus, studies integrating morphological and molecular data have been increasingly used to define species. To date nine Gelidium species are reported along the Brazilian coast. Gelidium floridanum is the most frequently recorded species in Brazilian but it is also often confused with morphologically similar species, especially in the field or when reproductive structures are absent. In this study we analyzed specimens from Brazil previously identified as G. floridanum based on the morphological and molecular data (cox1 and rbcL DNA sequences). Newly collected specimens from Brazil showed a DNA sequence divergence from G. floridanum in the order of 1.0–1.4% for rbcL and 4.2% for cox1, enough to be considered a new species, here described as Gelidium guimaraesiae sp. nov.

Zootaxa ◽  
2009 ◽  
Vol 2049 (1) ◽  
pp. 39-66 ◽  
Author(s):  
ALEXANDRE DIAS PIMENTA ◽  
RICARDO SILVA ABSALÃO ◽  
CINTIA MIYAJI

The genera Boonea Robertson, 1978, Chrysallida Carpenter, 1856, Fargoa Bartsch, 1909, Ivara Dall & Bartsch, 1903, Mumiola A. Adams, 1863, Odostomella Bucquoy, Dautzenberg & Dollfus, 1883, Parthenina Bucquoy, Dautzenberg & Dollfus, 1883 and Trabecula Dall & Bartsch, 1909 from Brazil are reviewed. Boonea jadisi (Olsson & McGinty, 1958), Boonea seminuda (C. B. Adams, 1839), Chrysallida gemmulosa C. B. Adams, 1850, Ivara terryi (Olsson & McGinty, 1958), Fargoa bushiana Bartsch, 1909, Mumiola gradatula (Mörch, 1876) and Odostomella carceralis Pimenta, Absalão & Alencar, 2000 are confirmed to occur in Brazil. We also present the first records of Parthenina varia (Odé, 1993), Odostomella fonteini (Jong & Coomans, 1988) and Trabecula krumpermanni (Jong & Coomans, 1988) from the region, all, new combinations. Two species, previously reported from the Brazilian coast, could not be confirmed: Boonea bisuturalis (Say, 1822) and Boonea impressa (Say, 1822). Odostomella cf. doliolum (Philippi, 1844) and Parthenina cf. interspatiosa (Linden & Eikenboom, 1992), originally described from the eastern Atlantic, are here recorded from Brazil, although their status remains dubious because of lack of information on their biology and due to lack of morphological and molecular data. One new species is described: Boonea scymnocelata, which can be distinguished from the similar species B. seminuda by its smaller size and immersed protoconch, with no visible nucleus.


Zootaxa ◽  
2018 ◽  
Vol 4446 (1) ◽  
pp. 81 ◽  
Author(s):  
HANNA R. ROYALS ◽  
JEAN-FRANÇOIS LANDRY ◽  
TODD M. GILLIGAN

The genus Paralobesia Obraztsov, 1953 is found primarily in eastern North America and consists of 18 described and several undescribed species. Prior to 1900, all North American Paralobesia were assumed to be P. viteana (Clemens). However, rearing experiments by William Kearfott in the early 1900s suggested that species of Paralobesia were monophagous and could be separated by host. Recently, a species of Paralobesia was reared from showy lady’s slipper, Cypripedium reginae Walter (Orchidaceae), during a study of two populations of this orchid in eastern Ontario and southwestern Québec. Although originally assumed to be P. cypripediana (Forbes), which was described from specimens reared from Cypripedium in Manitoba, DNA barcode data and genital morphology confirmed that this was a new species similar to P. cypripediana and P. monotropana (Heinrich). Herein, we describe P. marilynae, sp. n., and provide specifics of its discovery and life history. Rearing records indicate that Paralobesia can span the range from strictly monophagous to polyphagous, even for very similar species with similar feeding habits, and that host records should be combined with morphological and molecular data when circumscribing species in this genus. This work is part of a complete systematic revision of Paralobesia currently in progress. 


Zootaxa ◽  
2018 ◽  
Vol 4514 (4) ◽  
pp. 553 ◽  
Author(s):  
JOÃO PAULO FELIX AUGUSTO DE ALMEIDA ◽  
MARCO ANTONIO DE FREITAS ◽  
MÁRCIO BORBA DA SILVA ◽  
MARIA CELESTE COSTA VALVERDE ◽  
MIGUEL TREFAUT RODRIGUES ◽  
...  

A new species of Amphisbaena from the Espinhaço Mountain Range in Bahia State is described based on morphological and molecular data. Amphisbaena caetitensis sp nov. is a small four-pored amphisbaenian with 186–194 body annuli, 10–12 tail annuli, 16 dorsal and 19–22 ventral segments on a midbody annulus and a strikingly distinctive tail tip. The most similar species is A. uroxena, but they can be distinguished by some morphological features besides the genetic divergence of 7.65% on the mitochondrial 16S rRNA. 


Phytotaxa ◽  
2017 ◽  
Vol 328 (2) ◽  
pp. 175
Author(s):  
YUAN YUAN ◽  
LU-LU SHEN

A new polypore, Rhodonia tianshanensis, collected from West Tianshan Nature Reserve in Xinjiang Autonomous Region (northwest China), is described and illustrated based on morphological characteristics and molecular evidence. It is characterized by having resupinate basidiomata with an oblique tube layer, fusoid cystidioles in the hymenium, and cylindrical basidiospores. Based on multiple loci DNA sequences including the internal transcribed spacer (ITS), the large subunit (nLSU), and the second subunit of RNA polymerase II (RPB2) regions, our phylogeny strongly supported R. tianshanensis as a new species belonging to the genus Rhodonia.


Phytotaxa ◽  
2019 ◽  
Vol 414 (6) ◽  
pp. 269-279
Author(s):  
QIU-JIE ZHOU ◽  
JIN-HONG DAI ◽  
REN-CHAO ZHOU ◽  
YING LIU

Tashiroea dayaoshanensis (Melastomataceae, Sonerileae), a species from northeastern Guangxi, China and previously often identified as Phyllagathis nudipes or P. oligotricha in Chinese herbaria, is described as new based on morphological and molecular data. Indumentum, leaf texture and surface sculpture, capsule morphology and molecular phylogenetic data strongly support the placement of T. dayaoshanensis within the Tashiroea clade which should be accommodated in Tashiroea. Morphology as well as sequence divergence of the nrITS region indicate that T. dayaoshanensis is well differentiated from other species in the same clade, and thus should be treated as a distinct species. Tashiroea dayaoshanensis is phylogenetically closest to Bredia sessilifolia but can be easily distinguished by its petiolate leaves (vs. sessile or subsessile), and crowned ovary (vs. uncrowned). It resembles P. nudipes and P. oligotricha in habit and stamen morphology but differs from both in its leaf apex acuminate (vs. acute to obtuse), connective ventrally tuberculate (vs. not tuberculate) and ovary crown exerted from calyx tube during young fruit stage (vs. not exerted).


ZooKeys ◽  
2019 ◽  
Vol 825 ◽  
pp. 1-24 ◽  
Author(s):  
Jessica Colavite ◽  
Amanda Windsor ◽  
William Santana

Three new species and a new genus of majoid crabs from deep waters in the eastern Pacific are described and illustrated using morphological and molecular data. A new species of inachoidid, Collodesanartiussp. n. is described from Peru, which resembles C.tenuirostris Rathbun, 1893, in the general appearance of the carapace, but is distinguished by the details of tubercles on the carapace and thoracic sternum, proportions of the pereopod articles, and bathymetric distribution. A new epialtid, Nibiliamachalasp. n., is described from Ecuador; Nibilia A Milne-Edwards, 1878 has, until now, been considered to be monotypic, occurring only in the western Atlantic. This new species, from the eastern Pacific, closely resembles N.antilocapra (Stimpson, 1871) in the general morphology, but can be distinguished by the number of spines on the carapace and pereopods. Another epialtid, Solincaaulixgen. n. et sp. n, is establish for material collected from Ecuador and Peru, and can be easily identified from other taxa by the presence of a deep furrow between the very inflated branchial regions.


Zootaxa ◽  
2018 ◽  
Vol 4450 (4) ◽  
pp. 401 ◽  
Author(s):  
ANDREW R. GRAY

The presented work summarises new and existing phenotypic and phylogenetic information for the genus Cruziohyla. Data based on morphology and skin peptide profiling supports the identification of a separate new species. Specimens of Cruziohyla calcarifer (Boulenger, 1902) occurring in Ecuador, Colombia, two localities in Panama, and one in the south east Atlantic lowlands of Costa Rica, distinctly differ from those occurring along the Atlantic versant of Central America from Panama northwards through Costa Rica, Nicaragua, to Honduras. A new species—Cruziohyla sylviae sp. n.—(the type locality: Alto Colorado in Costa Rica)—is diagnosed and described using an integrated approach from morphological and molecular data. Phylogenetic analysis of DNA sequences of the 16S rRNA gene confirms the new species having equal minimum 6.2% genetic divergence from both true C. calcarifer and Cruziohyla craspedopus. 


Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 45-50
Author(s):  
XIA YU ◽  
MENG-YAO ZENG ◽  
GUI-ZHEN CHEN ◽  
XIN-YU XU ◽  
YUAN-YANG BI ◽  
...  

A new species of Cymbidium (Orchidaceae), C. weishanense, from Yunnan Province, China, is illustrated and described based on morphological and molecular evidence. Morphological comparison indicates that C. weishanense is similar to C. concinnum but differs in several floral characteristics. Molecular analyses based on nuclear ribosomal (ITS) and plastid DNA (matK and rbcL) support the status of C. weishanense as a new species. Due to the low support for nrITS, it is possible that this is a natural hybrid of C. concinnum with C. insigne or another related species.


Phytotaxa ◽  
2020 ◽  
Vol 428 (3) ◽  
pp. 271-278
Author(s):  
DI-YANG ZHANG ◽  
XIONG-DE TU ◽  
BIN LIU ◽  
XING-YU LIAO ◽  
SI-REN LAN ◽  
...  

A new species of Cymbidium (Orchidaceae), Cymbidium biflorens, from Yunnan Province, China, is illustrated and described based on morphological and molecular evidence. Morphological comparison indicates that C. biflorens is similar to C. rhizomatosum, but differs by its leafless, coralline rhizome, normally two flowering periods, a shorter scape, inflorescence with 1–2 flowers, greenish flowers with longer pedicel and ovary, subelliptic petal, petals and lip not fully opened. Molecular analyses base on nuclear (ITS) and plastid DNA (matK and rbcL) were conducted to explore the phylogenetic position of the species. The molecular evidence supports C. biflorens as sister to C. rhizomatosum.


Phytotaxa ◽  
2019 ◽  
Vol 420 (1) ◽  
pp. 56-64
Author(s):  
C. BIJEESH ◽  
A. MANOJ KUMAR ◽  
C.K. PRADEEP ◽  
K.B. VRINDA

Hohenbuehelia odorata sp.nov. is described based on morphological and molecular data of the nuclear ribosomal internal transcribed spacer (nrITS) region from Kerala State, India. The macro- and micromorphological features in conjunction with nrITS-based phylogenetic analysis performed using Maximum Likelihood (ML) method supported the novelty of H. odorata. Complete morphological descriptions, photographs and comparisons with similar species and a key to the Indian species of Hohenbuehelia are provided.


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