A monograph of Valsa on hardwoods in North America

1985 ◽  
Vol 63 (8) ◽  
pp. 1355-1378 ◽  
Author(s):  
Linda J. Spielman
Keyword(s):  
North America ◽  
North American ◽  
Herbarium Specimens ◽  
Type Specimens ◽  
New Subspecies ◽  
Morphological Studies

The species of Valsa and Cytospora found on hardwoods in North America are reevaluated, based on morphological studies of type specimens, herbarium specimens, and fresh collections. Three sections are accepted in Valsa: sections Valsa, Monostichae Nits., and Cypri Urban, distinguished by the number, size, and arrangement of perithecia, the distribution of ostioles in the disc, and the size of ascospores. Four sections are accepted in Cytospora: sections Cytospora, Torsellia (Fr.) Gvrit., Cytophoma (Hoehn.) Gvrit., and Cytosporopsis (Hoehn.) Gvrit., based on the number and shape of the locules. Correlations between the teleomorphic and anamorphic sections Valsa–Cytospora, Monostichae–Torsellia, and Cypri–Cytophoma are reaffirmed. Six species of Valsa on North American hardwoods are accepted, and two new subspecies are proposed: V. ambiens subsp. ambiens and V. ambiens subsp. leucostomoides (Peck) Spielman. Six species of Cytospora are accepted.

DRECHSLERA ITO

1962 ◽  
Vol 40 (6) ◽  
pp. 809-836 ◽  
Author(s):  
R. A. Shoemaker
Keyword(s):  
North America ◽  
Growth Characteristics ◽  
Herbarium Specimens ◽  
Taxonomic Study ◽  
Perfect State ◽  
Type Specimens ◽  
Artificial Culture ◽  
Formae Speciales

This taxonomic study of the hyphomycete genus Drechslera is based on type specimens, and on fresh collections and herbarium specimens principally from North America. Characters of conidia and conidiophores, and the growth characteristics of the species in artificial culture, are described and illustrated. Two keys to species are included: one based on characters of conidia and conidiophores; the second based on growth characteristics on sucrose proline agar. Fifteen species, one composed of two formae speciales, are accepted. Their names and some of the well-known synonyms are: D. avenacea (Curtis ex Cooke) Shoem. (= Helminthosporium, avenae Eidam); D. bromi (Died.) Shoem.; D. catenaria (Drechs.) Ito; D. dactylidis n. sp.; D. dictyoides (Drechs.) Shoem. f. sp. dictyoides; D. dictyoides f. sp. perenne (Braverman & Graham) n. comb.; D. erythrospila (Drechs.) Shoem.; D. fugax (Wallr.) Shoem. in Hughes (= H. stenacrum Drechs.); D. gigantea (Heald & Wolf) Ito; D. graminea (Rab. ex Schlecht.) Shoem.; D. phlei (Graham) Shoem.; D. poae (Baudys) n. comb. (= H. vagans Drechs.); D. siccans (Drechs.) Shoem.; D. teres (Sacc.) Shoem.; D. tritici-repentis (Died.) Shoem. (= Drechslera tritici-vulgaris (Nisikado) Ito); and D. tuberosa (Atk.) Shoem. (= H. secalis Whitehead & Dickson, = H. japonicum Ito & Kurib., = H. fragosoi Bubak). Also included are the perfect states of six species: Pyrenophora chaetomioides Speg. (st. conid. D. avenacea); P. bromi (Died.) Drechs. (st. conid. D. bromi); P. teres Drechs. (st. conid. D. teres); P. tritici-repentis (Died.) Drechs. (st. conid. D. tritici-repentis); P. japonica Ito & Kurib. in Ito (st. conid. D. tuberosa), and the perfect state of D. dactylidis.

Revision of Limnocoris (Heteroptera: Nepomorpha: Naucoridae) of North America

Zootaxa ◽  
2019 ◽  
Vol 4629 (4) ◽  
pp. 451-497
Author(s):  
HIGOR D. D. RODRIGUES ◽  
ROBERT W. SITES
Keyword(s):  
New Species ◽  
Costa Rica ◽  
North America ◽  
North American ◽  
Key Distribution ◽  
Original Description ◽  
North American Species ◽  
Type Specimens ◽  
Distribution Maps ◽  
The North

The North American species of Limnocoris are revised and total 13 species after the present study. Four new species are described and illustrated: L. chaetocarinatus n. sp. from Costa Rica, Panama, and Colombia; L. major n. sp. and L. nanus n. sp. from Costa Rica and Panama; and L. zacki n. sp. from Mexico and Guatemala. Further, supplemental descriptions are provided for the previously described species. The following synonymies are proposed, with junior synonyms in brackets: L. insularis Champion [L. alcorni La Rivers n. syn.], L. pygmaeus La Rivers [L. solenoides La Rivers n. syn.], and L. signoreti Montandon [L. brailovskyi La Rivers n. syn., L. laucki La Rivers n. syn., L. stangei La Rivers n. syn.]. A lectotype is designated for L. signoreti. Limnocoris profundus (Say) is considered a nomen dubium because no type specimens have been found and the original description is insufficient to establish its identity. An illustrated taxonomic key, distribution maps, and a discussion of the characters (putative synapomorphies) not previously mentioned in the literature also are presented. 

Growth forms and sepal hairs of the purple saxifrage (Saxifraga oppositifolia: Saxifragaceae) in North America related to chromosome records and DNA information

2005 ◽  
Vol 83 (9) ◽  
pp. 1088-1095 ◽  
Author(s):  
S.G. Aiken ◽  
M.C. LeBlanc ◽  
R.L. Boles
Keyword(s):  
North America ◽  
Original Description ◽  
Type Specimen ◽  
Morphological Data ◽  
Herbarium Specimens ◽  
Potential Candidate ◽  
Growth Forms ◽  
Type Specimens ◽  
The North ◽  
Saxifraga Oppositifolia

Growth forms and the presence or absence of hairs on the surfaces of the sepals of Saxifraga oppositifolia L. plants were examined on type specimens and more than 400 herbarium specimens collected from all over North America and Europe. Data were gathered on whether plant growth forms were compact, trailing, or intermediate between the extremes. Specimens were examined for whether or not hairs were present on the surface of the sepals between the long trichomes on the margins, and if so, an estimate was made of the degree of hairiness. While extreme forms of compact and trailing plants do occur, maps indicate that more of the plants collected in North America were intermediate in growth form. The geographic distribution of the presence or absence of hairs on the sepals is mapped, as is the gradation in degree of hairiness of sepals. The type specimen of S. oppositifolia subsp. smalliana (S. pulvinata), from the Yukon, has compact plants and flowers that have sepal surfaces with a few sparse hairs. The flowers have set fruits that have opened. “The smaller turbinate hypanthium” described in the original description may be the result of the structures being dehisced and dried up fruits. The type specimen of S. oppositifolia subsp. glandulisepala , from Alaska, is a relatively trailing specimen with some larger leaves. The sepal surfaces have a few glandular hairs. Whether or not the hairs appear glandular on herbarium specimens may reflect the stage of flowering at the time of collection. No morphological differences are associated with three different chromosome numbers known for S. oppositifolia plants from the area of the North American type specimens, and DNA analyses done mainly on European specimens, but also including a potential candidate for the name “smalliana”, gave inconclusive results. Thus, chromosome and DNA data join these morphological data on growth forms and the occurrence of sepal hairs to discourage recognizing subspecies among plants occurring in North America.

A REVIEW OF THE OENEIS POLIXENES (FABRICIUS) (LEPIDOPTERA: SATYRINAE) COMPLEX IN NORTH AMERICA

1988 ◽  
Vol 120 (7) ◽  
pp. 679-696
Author(s):  
James T. Troubridge ◽  
David K. Parshall
Keyword(s):  
New Species ◽  
North America ◽  
North American ◽  
North American Species ◽  
New Subspecies ◽  
Northwestern North America ◽  
One New Species

AbstractNorth American species of the Oeneis polixenes (Fabricius, 1775) complex are reviewed. Two new subspecies, Oeneis polixenes luteus and Oeneis polixenes woodi, as well as one new species, Oeneis philipi, are described from northwestern North America. Oeneis polixenes peartiae (Edwards, 1897) is synonymized with Oeneis polixenes subhyalina (Curtis, 1835).

Chromosome numbers from pollen in some North American Impatiens (Balsaminaceae)

1974 ◽  
Vol 52 (12) ◽  
pp. 2637-2639 ◽  
Author(s):  
C. C. Chinnappa ◽  
L. S. Gill
Keyword(s):  
North America ◽  
Chromosome Number ◽  
North American ◽  
Chromosome Numbers ◽  
Herbarium Specimens ◽  
Chromosome Counts ◽  
Present Survey ◽  
The One ◽  
Basic Numbers

Chromosome counts for eight species of Impatiens from North American populations have been determined from herbarium specimens. The chromosome number n = 10 for I. ecalcarata Blank, is a new report. It is apparent from the present survey that there are at least three basic numbers (n = 7, 10, and 13) represented in North America as opposed to the one (n = 10) suggested by the earlier workers.

scholarly journals Cortinarius subgenus Leprocybe, unexpected diversity and significant differences in species compositions between western and eastern North America

2021 ◽  
Author(s):  
J. Ammirati ◽  
K. Liimatainen ◽  
D. Bojantchev ◽  
U. Peintner ◽  
R. Kuhnert-Finkernagel ◽  
...  
Keyword(s):  
North America ◽  
North American ◽  
Molecular Data ◽  
North American Species ◽  
Eastern North America ◽  
Type Specimens ◽  
European Species ◽  
The North ◽  
Morphological And Molecular Data

The focus of this paper is the North American species of Cortinarius in subg. Leprocybe. Eighteen species, including twelve new ones, and two tentative (aff.) species, are delimited based on morphological and molecular data (DNA ITS-LSU sequences). Existing type specimens of species in subg. Leprocybe were also studied, and neo- or epitypes designated for C. cotoneus, C. melanotus, C. phrygianus and C. venetus to stabilize the nomenclature. In addition, to improve the infrasubgeneric classification of Leprocybe three new sections are proposed: sect. Fuscotomentosi, sect. Melanoti and sect. Squamiveneti. This study adds substantial information to the knowledge of subg. Leprocybe in North America against a background of European species. To date only two species, C. phrygianus and C. squamivenetus have been reported from both continents.

Notes on the genus Xeromphalina (Agaricales, Xerulaceae) in Canada: biogeography, nomenclature, taxonomy

1988 ◽  
Vol 66 (3) ◽  
pp. 479-507 ◽  
Author(s):  
S. A. Redhead
Keyword(s):  
United States ◽  
New York ◽  
British Columbia ◽  
North America ◽  
North American ◽  
The United States ◽  
Eastern United States ◽  
Type Specimens ◽  
Widespread Species ◽  
Eurasian Species

Eleven of the 13 North American species of Xeromphalina are reported from Canada. A key to 14 North American and northern Eurasian species is given. Type specimens for 9 names were examined. In Canada, subgenus Heimiomyces is represented by two species: X. tenuipes (Schw.) Smith (sect. Heimiomyces) and X. fulvipes (Murr.) Smith (sect. Fulvipes). Subgenus Xeromphalina is represented by sections Xeromphalina and Mutabiles. Xeromphalina brunneola Miller and X. campanella (Batsch: Fr.) Kuhner & Maire are circumboreal species documented from across Canada. Xeromphalina kauffmanii Smith occurs in southern Quebec, Nova Scotia, Costa Rica, the eastern United States, and in Japan. Section Mutabiles stat.nov. is completely revised based on pigmentation of the pileipellis, on the distribution and types of pileocystidia, and on the pigmentation of the stipe, in addition to characters used previously in the genus. The term "circumcystidia" is coined for pileocystidia largely confined to a band around the pileus margin. In North America, the name X. cauticinalis (Fr.) Kühner & Maire frequently has been misapplied to X. cornui (Quél.) Favre, a common, widespread species in Canada. Xeromphalina fraxinophila Smith is reported from across Canada and the United States and in Eurasia. The name Marasmius cauticinalis is neotypified. In North America X. cauticinalis ssp. cauticinalis occurs in western areas. Xeromphalina cauticinalis ssp. pubescentipes (Peck) comb. et stat. nov. occurs in eastern areas in North America, in Japan, and together with ssp. cauticinalis in Europe. Xeromphalina parvibulbosa (Kauff. & Smith) comb.nov. occurs across North America. Xeromphalina cirris sp.nov. from montane or boreal coniferous forests floors in British Columbia, Ontario, Colorado, Idaho, New Mexico, Oregon, Utah, Washington, and Wyoming and X. campanelloides sp.nov. from coastal British Columbia and Washington, and eastern montane New York and Quebec, on coniferous logs, are described. Rhizomorphs are formed by all Canadian species except X. tenuipes.

Taxonomic revision of the long-tailed shrew, Sorex dispar Batchelder, 1911, from the Appalachian Region of North America, with the description of a new subspecies

2019 ◽  
Vol 100 (6) ◽  
pp. 1837-1846 ◽  
Author(s):  
Victor E Diersing
Keyword(s):  
Nova Scotia ◽  
North America ◽  
New Brunswick ◽  
Geographic Variation ◽  
Skull Morphology ◽  
Connecticut River ◽  
Cape Breton Island ◽  
New Subspecies ◽  
Morphological Studies ◽  
Cape Breton

Abstract The long-tailed shrew, Sorex dispar Batchelder, 1911, and Gaspe shrew, S. gaspensis Anthony and Goodwin, 1924, from the Appalachian Mountains of North America have been characterized as genetically highly similar, and that one is morphologically a clinal variate of the other, i.e., there is a single species. I measured 24 characters of the skull on 196 shrews from throughout the range of the species. Geographic variation in skull shape and size was not gradual or continuous, but abrupt. These abrupt changes in morphology are associated with major water barriers, primarily the Connecticut River, middle Saint John River, and the Strait of Canso, which separates mainland Nova Scotia from Cape Breton Island. The morphological analyses presented here and previous genetic studies indicate that S. dispar and S. gaspensis are likely conspecific. Shrews with the largest skull occur from North Carolina north to Vermont and are referable to S. d. dispar with S. d. blitchi as a synonym. Shrews from New Hampshire northeast to southern New Brunswick and mainland Nova Scotia have a medium-sized skull and are referable to a new subspecies. Those from northern New Brunswick, Gaspe Peninsula of Quebec, and Cape Breton Island have a small skull and are referable to S. d. gaspensis. The skull morphology of S. d. gaspensis and the new subspecies are more similar to each other than to S. d. dispar. Results of this study differ from those of previous morphological studies because measurement error and within-group variation were reduced, which allowed for visibility of otherwise “hidden” between-group differences, or geographic variation.

Achene Morphology and Pericarp Anatomy of the Type Specimens of the Australian and New Zealand Species of Bolboschoenus (Cyperaceae)

1997 ◽  
Vol 10 (1) ◽  
pp. 49 ◽  
Author(s):  
J. Browning ◽  
K. D. Gordon-Gray ◽  
S. G. Smith
Keyword(s):  
New Zealand ◽  
North America ◽  
Electron Micrographs ◽  
Representative Sample ◽  
Hybrid Origin ◽  
Herbarium Specimens ◽  
Type Specimens ◽  
Infraspecific Taxa

Three species of Bolboschoenus (Ascherson) Palla are reported for Australia and New Zealand. Bolboschoenus caldwellii (V.J.Cook) Soják and B. medianus (V.J.Cook) Soják are based on types from New Zealand (under Scirpus L.). Bolboschoenus fluviatilis (Torrey) Soják has been lectotypified by a specimen from North America. Scirpus perviridis V.J.Cook, the type of which is also from New Zealand has been considered conspecific with Bolboschoenus fluviatilis. Achene morphology and pericarp anatomy of achenes removed from isotypes of Cook’s three species, Scirpus perviridis, S. caldwellii and S. medianus, are described and illustrated by electron micrographs. These achenes are compared with a representative sample of achenes of each of the Bolboschoenus species named above, taken from herbarium specimens collected in Australia and New Zealand. Infraspecific taxa within Bolboschoenus fluviatilis are briefly outlined. Features of Bolboschoenus medianus suggest a possible hybrid origin.

NOTES ON FRANCIS WALKER'S TYPE-SPECIMENS OF NORTH AMERICAN ANTHOMYID FLIES IN THE BRITISH MUSEUM. (MUSCIDAE, DIPTERA)

1934 ◽  
Vol 66 (6) ◽  
pp. 132-140 ◽  
Author(s):  
H. C. Huckett
Keyword(s):  
North America ◽  
North American ◽  
British Museum ◽  
Nominal Species ◽  
Type Specimens

The first extensive contribution to a knowledge of the anthomyid flies of North America was made by Francis Walker in 1849, when he published the records of fifty-five nominal species in his list of dipterous insects in the British Museum.

Sign in / Sign up

Export Citation Format

Share Document