A synopsis ofChaenothecain North America, including a new species from southern Ontario,C. selvae, supported by morphometric analyses

Botany ◽  
2018 ◽  
Vol 96 (9) ◽  
pp. 547-553 ◽  
Author(s):  
Richard Troy McMullin ◽  
Jose R. Maloles ◽  
Steven B. Selva ◽  
Steven G. Newmaster
Keyword(s):  
New Species ◽  
North America ◽  
Correspondence Analysis ◽  
Detrended Correspondence Analysis ◽  
Morphological Characters ◽  
Morphometric Variation ◽  
Southern Ontario ◽  
Morphometric Analyses ◽  
A New Species

We describe and illustrate a new species of calicioid lichen from southern Ontario, Chaenotheca selvae. We place it in Chaenotheca because of its lichenized thallus with a Stichococcus photobiont, a brown mazaedium, and ascospores that are brown, spherical, and single-celled (3.0–3.6 μm in diam.). It differs from other species of Chaenotheca by its photobiont, non-ornamented ascospores, straight stalks, and producing orange-brown pruina on the mazaedium, excipulum, and upper portion of the stalk when mature. Using a detrended correspondence analysis we identified 25 taxa, including the sp. nov., analyzing 22 morphological characters. Our results provide evidence of chemical and morphometric variation among species of Chaenotheca. We also provide a key for the identification of the 25 Chaenotheca species in North America.

Pinellia hunanensis (Araceae), a new species supported by morphometric analysis and DNA barcoding

Phytotaxa ◽  
2013 ◽  
Vol 130 (1) ◽  
pp. 1 ◽  
Author(s):  
Steven G Newmaster ◽  
YU-JING LIU ◽  
XIAN-JIN WU ◽  
YUE LIU ◽  
Subramanyam Ragupathy ◽  
...  
Keyword(s):  
New Species ◽  
Dna Barcoding ◽  
Function Analysis ◽  
Detrended Correspondence Analysis ◽  
Morphological Characters ◽  
Preliminary Evidence ◽  
Morphometric Variation ◽  
Further Development ◽  
A New Species

Pinellia hunanensis, a new species from China, is described and illustrated. A key for the identification of all Pinellia species in China, Korea and Japan is included. A detrended correspondence analysis identified 6 groups of taxa including the new species. From the 20 samples, analyzing 38 morphological characters. A discriminant function analysis was used to rigorously test the classification of specimens provided in the cluster analysis. DNA barcoding provided phylogenetic support using NJ and Bayesian methods to distinguish all six taxa including the putative new species. This study provides preliminary evidence of morphometric variation within and among species of Pinellia, which allows further development of hypothesis concerning species boundaries. Discussions concerning medicinal product substitution within the genus Pinellia are presented in the context of conservation initiatives of species in China.

Two New Sorediate Taxa of Peltigera

1995 ◽  
Vol 27 (1) ◽  
pp. 43-58 ◽  
Author(s):  
B. Goffinet ◽  
R. I. Hastings
Keyword(s):  
New Species ◽  
North America ◽  
East Africa ◽  
Morphological Characters ◽  
New Combination ◽  
Ecological Significance ◽  
Mesic Forest ◽  
A New Species ◽  
Forest Habitats ◽  
Gyrophoric Acid

AbstractExamination of specimens of Peltigera didactyla, from Africa, Asia, Europe and North America revealed that this sorediate species includes three entities that can be separated on morphological characters. A new species, P. lambinonii, is described from East Africa, and a new combination P. didactyla var. extenuata, is proposed to accommodate morphs from mesic forest habitats in Asia, Europe and North America. Despite this taxonomic reduction, P. didactyla var. didactyla remains a ubiquitous taxon. The former two taxa often produce methyl gyrophorate, which can co-occur with traces of gyrophoric acid. These tridepsides were only rarely detected in var. didactyla; their occasional presence seems to be best explained by hybridization. The taxonomic and ecological significance of these substances is discussed.

scholarly journals A new species of troodontid theropod (Dinosauria: Maniraptora) from the Horseshoe Canyon Formation (Maastrichtian) of Alberta, Canada

2017 ◽  
Vol 54 (8) ◽  
pp. 813-826 ◽  
Author(s):  
David C. Evans ◽  
Thomas M. Cullen ◽  
Derek W. Larson ◽  
Adam Rego
Keyword(s):  
New Species ◽  
North America ◽  
Alpha Diversity ◽  
Width Ratio ◽  
New Taxon ◽  
Lateral Region ◽  
Morphometric Analyses ◽  
Dinosaur Park Formation ◽  
Horseshoe Canyon Formation ◽  
A New Species

Troodontid material from the Maastrichtian of North America is extremely rare, beyond isolated teeth from microvertebrate sites. Here we describe troodontid frontals from the early Maastrichtian Horseshoe Canyon Formation (Horsethief Member). The most complete specimen, TMP 1993.105.0001, is notably foreshortened and robust when compared with numerous specimens referred to Troodon from the Dinosaur Park Formation, and exhibits several characteristics that distinguish it from other Late Cretaceous troodontids. Morphometric analyses reinforce shape differences between TMP 1993.105.0001 and other North American troodontids, and show that proportional differences are independent of size. We therefore erect a new taxon, Albertavenator curriei gen. et sp. nov., which is diagnosed by the following autapomorphies: (1) primary supraciliary foramen is truncated anteriorly by the lacrimal contact; (2) superficial (ectocranial) surface of the frontal proportionally shorter than all known troodontids, with a length to width ratio under 1.3; and (3) frontoparietal contact in which an enlarged lappet of the frontal extends medially to extensively overlap the lateral region of the anteromedial process of the parietal. Interestingly, tooth and jaw morphology from the single relatively complete dentary recovered from the Horseshoe Canyon cannot be distinguished from dentaries and teeth from the Dinosaur Park Formation. If the dentary and teeth from the Horsethief Member of the Horseshoe Canyon Formation prove to belong to A. curriei, extensive overlap in tooth morphology between the Dinosaur Park and Horseshoe Canyon formations reinforces the notion that tooth morphotypes do not exhibit strong correspondence to species alpha diversity, and may encompass multiple closely related taxa.

scholarly journals A new species of troodontid theropod (Dinosauria: Maniraptora) from the Horseshoe Canyon Formation (Maastrichtian) of Alberta, Canada

2018 ◽  
Author(s):  
David Evans ◽  
Thomas Cullen ◽  
Derek Larson ◽  
Adam Rego
Keyword(s):  
New Species ◽  
North America ◽  
Alpha Diversity ◽  
Width Ratio ◽  
New Taxon ◽  
Lateral Region ◽  
Morphometric Analyses ◽  
Dinosaur Park Formation ◽  
Horseshoe Canyon Formation ◽  
A New Species

Troodontid material from the Maastrichtian of North America is extremely rare, beyond isolated teeth from microvertebrate sites. Here we describe troodontid frontals from the early Maastrichtian Horseshoe Canyon Formation (Horsethief Member). The most complete specimen, TMP 1993.105.0001, is notably foreshortened and robust when compared with numerous specimens referred to Troodon from the Dinosaur Park Formation, and exhibits several characteristics that distinguish it from other Late Cretaceous troodontids. Morphometric analyses reinforce shape differences between TMP 1993.105.0001 and other North American troodontids, and show that proportional differences are independent of size. We therefore erect a new taxon, Albertavenator curriei gen. et sp. nov., which is diagnosed by the following autapomorphies: (1) primary supraciliary foramen is truncated anteriorly by the lacrimal contact; (2) superficial (ectocranial) surface of the frontal proportionally shorter than all known troodontids, with a length to width ratio under 1.3; and (3) frontoparietal contact in which an enlarged lappet of the frontal extends medially to extensively overlap the lateral region of the anteromedial process of the parietal. Interestingly, tooth and jaw morphology from the single relatively complete dentary recovered from the Horseshoe Canyon cannot be distinguished from dentaries and teeth from the Dinosaur Park Formation. If the dentary and teeth from the Horsethief Member of the Horseshoe Canyon Formation prove to belong to A. curriei, extensive overlap in tooth morphology between the Dinosaur Park and Horseshoe Canyon formations reinforces the notion that tooth morphotypes do not exhibit strong correspondence to species alpha diversity, and may encompass multiple closely related taxa.

Philometra kobuleji sp. n. (Nematoda: Philometridae)

1975 ◽  
Vol 49 (2) ◽  
pp. 101-105 ◽  
Author(s):  
Kalman Molnar ◽  
C. H. Fernando
Keyword(s):  
New Species ◽  
North America ◽  
Abdominal Cavity ◽  
Stream Fishes ◽  
Catostomus Commersoni ◽  
Southern Ontario ◽  
Parasitological Survey ◽  
Males And Females ◽  
North American Freshwater Fish ◽  
A New Species

AbstractPhilometra kobuleji (Nematoda: Philometridae) is described as a new species from the abdominal cavity of a North American freshwater fish, Catostomits commersoni.During a parasitological survey on stream fishes of Southern Ontario, males and females of a Philometra species were collected from white suckers, Catostomus commersoni (Laédpéde). This parasite differs from all known Philometra species recorded by Hoffman (1967) in North America.

scholarly journals Sphagnum incundum a new species in Sphagnum subg. Acutifolia (Sphagnaceae) from boreal and arctic regions of North America

Phytotaxa ◽  
2018 ◽  
Vol 333 (1) ◽  
pp. 1 ◽  
Author(s):  
MAGNI OLSEN KYRKJEEIDE ◽  
KRISTIAN HASSEL ◽  
BLANKA SHAW ◽  
A. JONATHAN SHAW ◽  
EVA M. TEMSCH ◽  
...  
Keyword(s):  
New Species ◽  
North America ◽  
Dna Sequences ◽  
Related Species ◽  
Morphological Characters ◽  
Close Relative ◽  
Morphological Description ◽  
Western Coast ◽  
Closely Related Species ◽  
A New Species

We describe Sphagnum incundum in Sphagnum subgenus Acutifolia (Sphagnaceae, Bryophyta). We used both molecular and morphological methods to describe the new species. Molecular relationships with closely related species were explored based on microsatellites and nuclear and plastid DNA sequences. The morphological description is based on qualitative examination of morphological characters and measurements of leaves and hyalocysts. Morphological characters are compared between closely related species. The results from Feulgen densitometry and microsatellite analysis show that S. incundum is gametophytically haploid. Molecular analyses show that it is a close relative to S. flavicomans, S. subfulvum and S. subnitens, but differs both genetically and in morphological key characters, justifying the description of S. incundum as a new species. The new peatmoss is found in North America along the western coast of Greenland, in Canada from Quebec and Northwest Territories, and Alaska (United States). The new species has a boreal to arctic distribution.

scholarly journals A new species of Gordius (Phylum Nematomorpha) from terrestrial habitats in North America

ZooKeys ◽  
2019 ◽  
Vol 892 ◽  
pp. 59-75 ◽  
Author(s):  
Christina Anaya ◽  
Andreas Schmidt-Rhaesa ◽  
Ben Hanelt ◽  
Matthew G. Bolek
Keyword(s):  
New Species ◽  
North America ◽  
Winter Season ◽  
Heavy Rain ◽  
Morphological Characters ◽  
Adult Males ◽  
Free Living ◽  
Circular Pattern ◽  
Terrestrial Habitats ◽  
A New Species

Freshwater hairworms (class Gordiida) are members of the phylum Nematomorpha that use terrestrial arthropods as definitive hosts but reside as free-living adult worms in rivers, lakes, or streams. The genus Gordius consists of 90 described species, of which three species were described from freshwater habitats in North America. In this paper we describe a new species of Gordius from terrestrial habitats in Oklahoma, Texas, and Louisiana, United States. Oddly, each year hundreds of adult free-living worms appear after bouts of heavy rain on streets, sidewalks, and lawns during the winter season, when terrestrial arthropod hosts are not active. The new species is described based on morphological characters of adults and non-adult stages including the egg strings, eggs, larvae, and cysts. Adult males have a unique row of bristles on the ventral inner side of each tail lobe and a circular pattern of bristles on the terminal end of each lobe, which distinguishes them from all other described North American species of Gordius. The egg string, larval, and cyst morphology of this new species conform to previous descriptions of non-adult hairworm stages for the genus Gordius. However, the eggs of this new species of hairworm are unique, as they contain an outer shell separated by distinct space from a thick inner membrane. The consistent occurrence of this gordiid in terrestrial habitats, along with its distinct egg morphology, suggests that this new species of hairworm has a terrestrial life cycle.

A New Species of Justicia (Acanthaceae: Acanthoideae: Justicieae) from Northeastern Brazil

2020 ◽  
Vol 45 (2) ◽  
pp. 328-333
Author(s):  
Camila Alcantara ◽  
Gleison Soares ◽  
Francisco de Assis Ribeiro dos Santos ◽  
Marccus Alves
Keyword(s):  
New Species ◽  
Rio Grande ◽  
Morphological Characters ◽  
Northeastern Brazil ◽  
Distribution Map ◽  
Key To Species ◽  
A New Species

Abstract—Justicia rubrobracteata, a new species from northeastern Brazil, is described and illustrated. The new species is morphologically similar to J. aequilabris due to its shrubby habit, and terminal and axillary spicate inflorescences with red flowers. However, J. rubrobracteata is differentiated mainly by the shape and color of its bracts and bracteoles as well as an orangish macula in the corolla, and a torulose capsule. In addition, J. rubrobracteata is only known from northeastern Brazil, from the states of Paraíba and Rio Grande do Norte, while J. aequilabris is widely distributed in Bolivia, Brazil, and Paraguay. A table with the main morphological characters of both species is included, as well as photographs, a key to species of Justicia for the states of Paraíba and Rio Grande do Norte in northeastern Brazil, a distribution map of both species, and conservation data for the new species.

A remarkable pogonophoran from a desalted shallow near the mouth of the Yenisey River in the Kara Sea, with the description of a new species of the genus Galathealinum (Annelida: Pogonophora: Frenulata)

2020 ◽  
Vol 29 (1) ◽  
pp. 138-154
Author(s):  
R.V. Smirnov ◽  
O.V. Zaitseva ◽  
A.A. Vedenin
Keyword(s):  
New Species ◽  
Arctic Ocean ◽  
Anterior Part ◽  
Morphological Characters ◽  
Kara Sea ◽  
The Arctic ◽  
External Layer ◽  
The Arctic Ocean ◽  
A New Species ◽  
Unusual Finding

A new species of Pogonophora obtained from one station at a depth of 25 m from near the Dikson Island in the Kara Sea is described. Galathealinum karaense sp. nov. is one of the largest pogonophorans, the first known representative of the rare genus Galathealinum Kirkegaard, 1956 in the Eurasian part of the Arctic Ocean and a highly unusual finding for the desalted shallow of the Yenisey Gulf. Several characters occurring in the new species are rare or unique among the congeners: under-developed, hardly discernible frills on the tube segments, extremely thin felted fibres in the external layer of the tube, and very faintly separated papillae in the anterior part of the trunk. Morphological characters useful in distinguishing species within the genus Galathealinum are defined and summarised in a table. Diagnosis of the genus Galathealinum is emended and supplemented by new characters. Additionally, three taxonomic keys are provided to the species of Galathealinum and to the known species of the Arctic pogonophorans using either animals or their empty tubes only, with the brief zoogeographical information on each Arctic species.

Two late-spring braconid genera of the subfamily Alysiinae (Hymenoptera: Braconidae) new for the fauna of Russia

2011 ◽  
Vol 20 (1) ◽  
pp. 85-95 ◽  
Author(s):  
S.A. Belokobylskij ◽  
T.S. Kostromina
Keyword(s):  
New Species ◽  
Morphological Characters ◽  
Late Spring ◽  
Key To Species ◽  
The Urals ◽  
Asian Continent ◽  
First Time ◽  
A New Species

Two braconid genera from the subfamily Alysiinae, Lodbrokia Hedqvist, 1962 and Asyntactus Marshall, 1898, are recorded in the fauna of Russia and in the Asian continent for the first time. A new species Lodbrokia uralica sp. nov. is described from the Urals, and a key to species of this genus is provided. Redescriptions of the female and male of Asyntactus rhogaleus Marshall, 1898 with information about the level of variability of its morphological characters are given. Asyntactus sigalphoides Marshall, 1898 is synonymised with A. rhogaleus Marshall, 1898 (syn. nov.).

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