Taxonomic revision of the Carex stricta (Cyperaceae) complex in eastern North America

1989 ◽  
Vol 67 (1) ◽  
pp. 1-14 ◽  
Author(s):  
Lisa A. Standley
Keyword(s):  
North America ◽  
Chromosome Numbers ◽  
Taxonomic Revision ◽  
Distinct Species ◽  
North American Species ◽  
Eastern North America ◽  
Distribution Maps ◽  
Carex Stricta ◽  
Morphological Studies ◽  
Infraspecific Taxa

Morphological studies of the Carex stricta complex confirm hypotheses based on chromosome numbers that there are three distinct species in eastern North America, Carex stricta, C. emoryi, and C. haydenii, but they do not indicate the existence of any distinct infraspecific taxa. These species are compared phenetically with all other North American species of section Phacocystis. Results indicate that the three species examined here do not form a closely related subgroup within the section as suggested by previous authors. Distribution maps, descriptions, and synonomy are provided for these species, and a complete key to the species of section Phacocystis in eastern North America is given.

Taxonomy of the Carex lenticularis complex in eastern North America

1987 ◽  
Vol 65 (4) ◽  
pp. 673-686 ◽  
Author(s):  
Lisa A. Standley
Keyword(s):  
North America ◽  
Principal Components ◽  
Chromosome Count ◽  
Morphological Data ◽  
Eastern North America ◽  
Clustering Techniques ◽  
Distribution Maps ◽  
Distinct Subgroup ◽  
Infraspecific Taxa ◽  
Components Analysis

The Carex lenticularis complex is a morphologically, anatomically, and cytologically distinct subgroup within Carex sect. Phacocystis Dumort. This complex consists of two taxa in eastern North America, C. lenticularis Michx. var. lenticularis and C. nigra (L.) Reich. Although previous treatments have recognized five infraspecific taxa within C. lenticularis var. lenticularis and two within C. nigra, analyses of morphological data using histograms, clustering techniques, and principal components analysis indicate that both species are variable but monotypic in eastern North America. Distribution maps and illustrations of both taxa are provided. A new chromosome count for C. lenticularis var. lenticularis (2n = 86) is reported, and previous records for C. nigra (2n = 84) are confirmed. Although these species are sympatric over most of the range of C. nigra, no natural hybrids are known.

BIOSYSTEMATIC STUDIES ON XANTHIUM: TAXONOMIC APPRAISAL AND ECOLOGICAL STATUS

1959 ◽  
Vol 37 (2) ◽  
pp. 173-208 ◽  
Author(s):  
Doris Löve ◽  
Pierre Dansereau
Keyword(s):  
North America ◽  
South America ◽  
Ecological Status ◽  
Distinct Species ◽  
Eastern North America ◽  
Flowering Response ◽  
Short Day ◽  
Stable Species ◽  
Enormous Variation

The following paper is an evaluation of the taxonomic and ecological status of the genus Xanthium L. A review of its systematics demonstrates that many so-called "species" described on material from Europe actually have their origin in America, except one, X. strumarium s. str., which seems to have a Mediterranean–European center of dispersal. Another conclusion drawn is that Xanthium consists of only two distinct species: X. spinosum L. and X. strumarium L. The former is a relatively stable species, the latter an enormously variable one readily subdivided into a number of minor taxonomic entities.Ecologically, in eastern North America at least, Xanthium is primarily a beach plant, which prefers open habitats and succumbs to crowding. The seeds are most often dispersed by water and wind. It enters easily into ruderal habitats, but only as long as these are open and unshaded.The generalized short-day flowering response in this genus supports our hypothesis that Xanthium has a tropical–subtropical origin, and we feel that it has its center in Central and/or South America, whence it has spread over the continents north and southward.There is no evidence for any sterility barriers separating the entities of X. strumarium, but we feel that an intense inbreeding with an occasional outbreeding is responsible for the enormous variation, often resulting in small, local, but unstable taxa.

scholarly journals Notes on the biology and distribution of the tribe Agallissini in North America (Coleoptera: Cerambycidae: Cerambycinae)

Zootaxa ◽  
2018 ◽  
Vol 4457 (3) ◽  
pp. 444
Author(s):  
THOMAS AUSTIN ◽  
DANIEL HEFFERN ◽  
ROBERT GEMMILL ◽  
BRIAN RABER ◽  
MIKE QUINN
Keyword(s):  
North America ◽  
North American ◽  
North American Species ◽  
Distribution Maps ◽  
The North ◽  
Larval Host

New distributional records, new larval host records, various collecting notes, and observations are reported for the North American species of the tribe Agallissini LeConte, 1873 (Coleoptera: Cerambycidae: Cerambycinae): Agallissus lepturoides (Duponchel & Chevrolat, 1841), Osmopleura chamaeropis (Horn, 1893), and Zagymnus clerinus (LeConte, 1873). The species are illustrated and distribution maps are provided.

A review of the Thaumaleidae (Diptera: Culicomorpha) of eastern North America, including a redefinition of the genus Androprosopa Mik

1996 ◽  
Vol 27 (4) ◽  
pp. 361-376 ◽  
Author(s):  
Bradley J. Sinclair
Keyword(s):  
North America ◽  
North American ◽  
New Records ◽  
Instar Larva ◽  
North American Species ◽  
Eastern North America ◽  
Adult Males

AbstractThe genus Androprosopa Mik (Diptera: Thaumaleidae) is redefined and expanded to include 51 species. Adult, pupa, and final-instar larva of the eastern North American species of Androprosopa americana (Bezzi) comb. n., A. thornburghae (Vaillant) comb. n., A. vaillantiana sp. n., and Thaumalea verralli Edwards (new Nearctic record) are described and illustrated. New records of Trichothaumalea elakalensis Sinclair also are provided. Keys to adult males, pupae, and larvae for all five eastern Nearctic species are included.

scholarly journals Caliciopsis moriondi, a new species for a fungus long confused with the pine pathogen C. pinea

MycoKeys ◽  
2020 ◽  
Vol 73 ◽  
pp. 87-108
Author(s):  
Duccio Migliorini ◽  
Nicola Luchi ◽  
Alessia Lucia Pepori ◽  
Francesco Pecori ◽  
Chiara Aglietti ◽  
...  
Keyword(s):  
New Species ◽  
North America ◽  
Pinus Radiata ◽  
Phylogenetic Analyses ◽  
Distinct Species ◽  
Integrative Approach ◽  
Eastern North America ◽  
Pathogenic Species ◽  
Eastern Usa ◽  
A New Species

The genus Caliciopsis (Eurotiomycetes, Coryneliales) includes saprobic and plant pathogenic species. Caliciopsis canker is caused by Caliciopsis pinea Peck, a species first reported in the 19th century in North America. In recent years, increasing numbers of outbreaks of Caliciopsis canker have been reported on different Pinus spp. in the eastern USA. In Europe, the disease has only occasionally been reported causing cankers, mostly on Pinus radiata in stressed plantations. The aim of this study was to clarify the taxonomy of Caliciopsis specimens collected from infected Pinus spp. in Europe and North America using an integrative approach, combining morphology and phylogenetic analyses of three loci. The pathogenicity of the fungus was also considered. Two distinct groups were evident, based on morphology and multilocus phylogenetic analyses. These represent the known pathogen Caliciopsis pinea that occurs in North America and a morphologically similar, but phylogenetically distinct, species described here as Caliciopsis moriondisp. nov., found in Europe and at least one location in eastern North America. Caliciopsis moriondi differs from C. pinea in various morphological features including the length of the ascomata, as well as their distribution on the stromata.

scholarly journals Taxonomic revision and zoogeographical patterns of the species of Gnopharmia Staudinger, 1892 (Geometridae, Ennominae)

Zootaxa ◽  
2012 ◽  
Vol 3360 (1) ◽  
pp. 1 ◽  
Author(s):  
HOSSEIN RAJAEI SH. ◽  
DIETER STÜNING ◽  
ROBERT TRUSCH
Keyword(s):  
New Records ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Female Genitalia ◽  
Valid Species ◽  
Type Specimens ◽  
Genetic Studies ◽  
Entire Area ◽  
Distribution Maps ◽  
Morphological Studies

The genus Gnopharmia Staudinger, 1892 is revised, based on more than 2000 specimens from the entire area ofdistribution and study of type material of all described taxa, as far asmap available. Seven species and three subspeciesare confirmed as valid for the genus. All important morphological characters have been studied and compared, includingmale and female genitalia. In addition, preliminary results of DNA-Barcoding were used to reassess our taxonomicdecisions, based on morphological studies. Type specimens and their labels are illustrated and additional specimens,demonstrating the variability of certain species, are also figured. Male genitalia of all valid species are figured and SEMphotos of the aedeagus are illustrated. Further important structures, the so-called ‘octavals’ on the male pre-genitalabdomen, are also figured. Female genitalia revealed a high similarity between species, combined with a considerablevariability, and were unsuitable for characterisation of species. Female genitalia of three species are figured to exemplifythis situation. As a result of the morphological and genetic studies, 12 out of the 21 described species and subspecies aresynonymised or transferred to the closely related genus Neognopharmia Wehrli, 1953. In addition, G. colchidariacocandaria (Erschoff, 1874) is revived as a valid species, G. sinesefida Wehrli, 1941 is downgraded to a subspecies of G.colchidaria Lederer, 1870. Five new records for the fauna of the following countries are presented: G. colchidariaobjectaria: new for Pakistan; G. irakensis: new for Turkey and Pakistan; G. kasrunensis: new for Oman and G. sarobiana: new for Pakistan. Distribution maps and an identification key are given for all species.

The taxonomy of the Carex rosea group (section Phaestoglochin) in Canada

1984 ◽  
Vol 62 (10) ◽  
pp. 2058-2073 ◽  
Author(s):  
J. M. Webber ◽  
P. W. Ball
Keyword(s):  
North America ◽  
Chromosome Numbers ◽  
Distribution Maps ◽  
Species Analysis ◽  
Mixed Populations ◽  
Group Part

The Carex rosea group, part of section Phaestoglochin, consists of four species, three of which, C. appalachica Webber & Ball, C. rosea Schkuhr ex Willd., and C. radiata (Wahlenberg) Small, occur in Canada. It is shown that some characters used to separate the species, i.e., perigynium length, colouration of the orifice of the beak, number of perigynia per spike, and length of the lowest infructescence bract, are unreliable. Other characters, such as the widths of the broadest leaves and fertile culms, width and degree of coiling of the stigmas, shape of the perigynium base, and position of the achene within the perigynium, were found to afford a reliable separation of the species. Analysis of mixed populations of C. rosea, C. radiata, and C. appalachica suggests that hybridization does not occur. The chromosome numbers of the three Canadian species were found to be as follows: C. rosea, n = 26; C. radiata, n = 29; and C. appalachica, n = 26. Distribution maps of the three species in North America are also given.

Morphological and molecular delineation of a new species in the Ceratina dupla species-group (Hymenoptera: Apidae: Xylocopinae) of eastern North America

Zootaxa ◽  
2011 ◽  
Vol 2873 (1) ◽  
pp. 35 ◽  
Author(s):  
SANDRA M. REHAN ◽  
CORY S. SHEFFIELD
Keyword(s):  
New Species ◽  
North America ◽  
North American ◽  
Dna Barcode ◽  
Species Group ◽  
North American Species ◽  
Eastern North America ◽  
Separate Species ◽  
Carpenter Bees ◽  
A New Species

DNA barcoding is used to verify characters to morphologically differentiate genetically distinct species of eastern North American small carpenter bees, Ceratina. Here we reveal that the common eastern North American species, Ceratina dupla s. l., is actually three separate species based on fixed differences in DNA barcode sequences and morphological characters. This study adds a new species, C. mikmaqi Rehan & Sheffield, to the Ceratina dupla species-group of eastern North America, and raises another form, C. floridana formerly C. dupla floridana, to full species. Temporal niche partitioning between C. dupla and C. mikmaqi and geographic isolation of C. floridana further support the division of the C. dupla s. l. group into three species. A diagnosis and description of the new species are provided, as is a key for eastern North American species of Ceratina.

A taxonomic revision of Caloplaca herbidella and C. furfuracea

2009 ◽  
Vol 41 (5) ◽  
pp. 465-480 ◽  
Author(s):  
Ulf ARUP ◽  
Elin ÅKELIUS
Keyword(s):  
North America ◽  
Molecular Analysis ◽  
Taxonomic Revision ◽  
Strict Sense ◽  
Separate Species ◽  
Distribution Maps ◽  
Morphometric Methods ◽  
Large Genus ◽  
Grey Colour ◽  
New Distribution

AbstractCaloplaca herbidella (Hue) H. Magn. and C. furfuracea H. Magn. are two isidiate, epiphytic species in the large genus Caloplaca. Caloplaca herbidella in a strict sense is normally grey and fertile with thick, somewhat coralloid isidia, but orange, sterile forms with thin isidia also occur. Caloplaca furfuracea is superficially similar morphologically to C. herbidella s. str. but has thinner, more granular isidia and generally a darker grey colour. Doubts have been raised as to whether C. furfuracea should be acknowledged as a proper species or incorporated in C. herbidella. Using morphometric methods and molecular analysis of the nrITS DNA gene we show that C. herbidella and C. furfuracea are two clearly separated species. Furthermore, the mainly sterile, orange form of C. herbidella can be regarded as a separate species that is here described as C. coralliza Arup & Åkelius. All three species are described in detail, including photographs and notes on their ecology. Finally, new distribution maps for Europe show that C. herbidella and C. coralliza are widespread in Europe, but the latter is probably less common than the former. Caloplaca furfuracea is clearly very rare in Europe with only few collections from Switzerland and Sweden, but seems to be more common in North America.

A REARRANGEMENT OF THE NORTH AMERICAN SPECIES OF CLUBIONA, WITH DESCRIPTIONS OF TWO NEW SPECIES (ARANEIDA: CLUBIONIDAE)

1976 ◽  
Vol 108 (11) ◽  
pp. 1155-1165 ◽  
Author(s):  
C. D. Dondale ◽  
J. H. Redner
Keyword(s):  
New Species ◽  
North America ◽  
North American ◽  
North American Species ◽  
Eastern North America ◽  
The North ◽  
Two New Species ◽  
Species Groups ◽  
Group 2 ◽  
Group 1

AbstractThe 50 known species of North American Clubiona Latreille, 1804 are rearranged in seven species-groups as follows: trivialis group (1 Holarctic, 4 Nearctic), obesa group (11 Nearctic), reclusa group (2 Holarctic, 3 Nearctic), pallidula group (1 Holarctic), abboti group (25 Nearctic), lutescens group (1 Holarctic, 1 Nearctic), maritima group (1 Nearctic). Clubiona quebecana and C. angulata are described as new species from eastern North America. C. kuratai Roddy, 1966, originally described from the female only, is synonymized under C. chippewa Gertsch, 1941, which was originally described from the male only. C. opeongo Edwards, 1958 and C. bishopi Edwards, 1958 are redescribed, the male of the former and the female of the latter not having been previously described.

Sign in / Sign up

Export Citation Format

Share Document