Lichens from the area drained by the Peel and Mackenzie rivers, Yukon and Northwest Territories, Canada. II. Microlichens

1981 ◽  
Vol 59 (7) ◽  
pp. 1231-1252 ◽  
Author(s):  
Charles D. Bird ◽  
John W. Thomson ◽  
Alfred H. Marsh ◽  
George W. Scotter ◽  
Pak Yau Wong
Keyword(s):  
North America ◽  
Northwest Territories ◽  
Coniferous Forest ◽  
Yukon Territory ◽  
New Combinations ◽  
Major Tributary ◽  
Made In ◽  
Mackenzie River

A sequel to earlier papers on bryophytes and macrolichens, this treatment describes the distribution and general ecology of 314 microlichen taxa for 230 000 km2 of coniferous forest, open fens, and alpine terrain along the Mackenzie River in the District of Mackenzie, Northwest Territories, and the Peel River, a major tributary which extends into the Yukon Territory. There are 103 new reports for the District of Mackenzie and 69 for the Yukon. Of the taxa, 87% are found in Europe and Asia as well as in North America, 1% are known only from Asia and North America; and 9% are restricted to North America. Staurothele sessilis Magn. is new to Canada, while Sagiolechia protuberans (Ach.) Mass., Staurothele hymenogonia (Nyl.) Th.Fr., and two lichen parasites, Didymosphaeria epicrassa (Oliv.) Vouax and Lahmia fuistingii Körb. are new to North America.Seven new combinations are made in Aspicilia: A. aliena (Zahlbr.) Thoms., A. anseris (Lynge) Thoms., A. elevata (Lynge) Thoms., A. perradiata (Nyl.) Thoms., A. ryrkaipiae (Magn.) Thoms., A. sorediza (Lynge) Thoms., and A. subplicigera (Magn.) Thoms.

Lichens from the area drained by the Peel and Mackenzie rivers, Yukon and Northwest Territories, Canada. I. Macrolichens

1980 ◽  
Vol 58 (18) ◽  
pp. 1947-1985 ◽  
Author(s):  
Charles D. Bird ◽  
John W. Thomson ◽  
Alfred H. Marsh ◽  
George W. Scotter ◽  
Pak Yau Wong
Keyword(s):  
North America ◽  
Northwest Territories ◽  
Plant Communities ◽  
Coniferous Forest ◽  
Yukon Territory ◽  
High Mountains ◽  
The North ◽  
Major Tributary ◽  
Mackenzie River

The distribution and general ecology of 249 macrolichen taxa is described for 230 000 km2 of coniferous forest, open fens, and alpine terrain along the Mackenzie River in the District of Mackenzie, Northwest Territories, and the Peel River, a major tributary which rises in the Yukon Territory. Permafrost plays a major role in determining the plant communities that are present. Fire and man-made disturbances initiate succession. There are 45 new reports for the District of Mackenzie and 30 for the Yukon. Of the taxa, 86% are found in Europe, Asia, and North America, 9% are known from Asia and North America, whereas only 4% are restricted to North America. Pilophorus robustus is new to Canada. High mountains in the western part of the area, generally nonglaciated during the Wisconsinian, support a flora that contains many Arctic and Arctic–Alpine taxa. Amphi-Beringian species occur primarily in the north.

Bryophytes from the area drained by the Peel and Mackenzie rivers, Yukon and Northwest Territories, Canada

1977 ◽  
Vol 55 (23) ◽  
pp. 2879-2918 ◽  
Author(s):  
Charles D. Bird ◽  
George W. Scotter ◽  
William C. Steere ◽  
Alfred H. Marsh
Keyword(s):  
North America ◽  
Northwest Territories ◽  
Coniferous Forest ◽  
High Mountains ◽  
Extensive Area ◽  
Discontinuous Permafrost ◽  
Major Tributary ◽  
Mackenzie River

The distribution and general ecology of 263 bryophyte taxa are presented for an extensive area of coniferous forest, open fens, and alpine terrain along the Mackenzie River in the District of Mackenzie and the Peel River, a major tributary which extends into the Yukon. The continuous or discontinuous permafrost which underlies the area plays a major role in determining the vegetational communities that are present. Fire and disturbance by man initiate succession. Thirty-nine liverworts, 20 peat mosses, and 204 true mosses are reported. There are 43 new reports for the District of Mackenzie and 16 for the Yukon. Cynodontium glaucescens is new to North America. Brachythecium glaciale, B. mildeanum, and B. trachypodium are confirmed for North America. Of the taxa 94.7% are found in Europe and Asia as well as North America, 4.2% are known only from Asia and North America, whereas only 1.1% are restricted to North America. High mountains in the western part of the area, generally nonglaciated during the Wisconsinan, support a flora that contains many Arctic and Arctic–Alpine taxa.

Identification and morphology of the aecial state of Pucciniastrum sparsum in northwestern Canada

1970 ◽  
Vol 48 (3) ◽  
pp. 433-435
Author(s):  
Y. Hiratsuka
Keyword(s):  
North America ◽  
Northwest Territories ◽  
Picea Glauca ◽  
Yukon Territory ◽  
New Hosts ◽  
First Time

From inoculation experiments and morphological examinations, the aecial state of Pucciniastrum sparsum (Wint.) E. Fisch. (= Thekopsora sparsa (Wint.) Magn.) has been identified for the first time in North America from specimens collected in the Northwest Territories and the Yukon Territory. Picea glauca (Moench) Voss, P. mariana (Mill.) BSP., and P. pungens Engelm. (from inoculation only) are reported as new hosts of this fungus. An expanded description of the spermogonia and aecia of the fungus is given.

Anastrophyllum assimile and Marsupella revoluta, new to the interior of North America

1977 ◽  
Vol 55 (19) ◽  
pp. 2479-2484 ◽  
Author(s):  
Diana G. Horton
Keyword(s):  
British Columbia ◽  
North America ◽  
Northwest Territories ◽  
North American ◽  
Yukon Territory ◽  
The Arctic ◽  
Devon Island ◽  
New Localities ◽  
Central Eastern ◽  
Coastal British Columbia

Anastrophyllum assimile (Mitt.) Steph. and Marsupella revoluta (Nees) Lindb. are reported from the Keele Peak area, central-eastern Yukon Territory, Canada, and M. revoluta is also reported from Devon Island, Northwest Territories, Canada. These new localities extend a pattern of disjunct occurrences throughout the known range of both species, which further support the hypothesis of their relictual status. However, collections of A. assimile from coastal British Columbia and the Alexander Archipelago, Alaska, are indicative of strong oceanic affinities of North American populations of this species. Also, the arctic and alpine localities at which either A. assimile or M. revoluta might be expected to occur in the interior of Alaska and the Yukon are limited in number as both species invariably occur in association with siliceous substrates.

NEWLY RECOGNIZED HOLARCTIC AND INTRODUCED PLANT BUGS IN NORTH AMERICA (HETEROPTERA: MIRIDAE)

1998 ◽  
Vol 130 (3) ◽  
pp. 267-283 ◽  
Author(s):  
Michael D. Schwartz ◽  
G.G.E. Scudder
Keyword(s):  
British Columbia ◽  
North America ◽  
Northwest Territories ◽  
North American ◽  
Washington State ◽  
Yukon Territory ◽  
Lygus Rugulipennis

AbstractThe first North American records forDeraeocoris punctulatus(Fallén),Labopidea artemisiae(Sahlberg), andLabopidea bermaniKerzhner indicate that the species are naturally Holarctic.Lygus rugulipennisPoppius is now considered naturally Holarctic after specimens ofLygus perplexusStanger from Alaska, Yukon Territory, and Northwest Territories are correctly identified asL.rugulipennis. Additional North American localities forLabopidea discolor(Sahlberg) support the contention that the species is naturally Holarctic. Collections ofOrthotylus ochrotrichusFieber from Royal Oak, British Columbia, andMalacocoris chlorizansPanzer from British Columbia and Washington state suggest that these species are adventive to North America. Diagnoses are provided to distinguish all the taxa from other North American congeners. A key to the northern Nearctic species ofLabopideais given.

The taxonomy and distribution of rare or uncommon species of Albatrellus in western North America

1997 ◽  
Vol 75 (2) ◽  
pp. 261-273 ◽  
Author(s):  
J. Ginns
Keyword(s):  
British Columbia ◽  
New Mexico ◽  
North America ◽  
Key Words ◽  
Northwest Territories ◽  
Yukon Territory ◽  
Western North America ◽  
General Locality

Habitat data, although sparse, and occurrence are summarized for nine rare or uncommon species of Albatrellus. Significant range extensions are Albatrellus avellaneus in British Columbia, Oregon, and Washington, Albatrellus caeruleoporus in California, British Columbia, Oregon, and Washington, Albatrellus dispansus in Washington, Albatrellus ellisii in Colorado, Oregon, Washington, and Wyoming, Albatrellus flettii in Alaska, Alberta, northern British Columbia, Idaho, New Mexico, and Wyoming, Albatrellus subrubescens in Alberta, California, Northwest Territories, and Washington, Albatrellus syringae in North America (Alaska, Alberta, British Columbia, and Yukon Territory). Three additional collections of Albatrellus skamanius bring the total known collections of the species to four; all are from the same general locality. A key to the western species, emphasizing features of fresh basidiomes, is included. The basidiome features of these species are supplemented with data from additional collections. Spore sizes in several species are more critically defined. Amyloidity occurred in basidiospores and (or) hyphae of A. avellaneus, Albatrellus affin. cristatus, A. ellisii, A. flettii, A. skamanius, and A. subrubescens. Key words: systematics, ecology, Basidiomycetes, conservation, biodiversity, fungi.

The genus Fuscidea ( Fuscideaceae, lichenized Ascomycota) in North America

2008 ◽  
Vol 40 (04) ◽  
pp. 295-328 ◽  
Author(s):  
Alan M. FRYDAY
Keyword(s):  
New Species ◽  
North America ◽  
Distinct Species ◽  
New Combination ◽  
Eastern North America ◽  
New Combinations ◽  
Two New Species ◽  
Made In

Abstract:The species of the genus Fuscidea occurring in North America are revised. Two new species, Fuscidea appalachensis Fryday and F. texana Fryday, are described from eastern North America and southern Texas, respectively. Three new combinations are also made in Fuscidea: Lecidea aleutica Degel. is shown to be a distinct species and not a synonym of Fuscidea lowensis (H. Magn.) R. Anderson & Hertel as previously suggested and is here recognized as F. aleutica (Degel.) Fryday; non-sorediate, apotheciate specimens from eastern North America previously referred to F. recensa (Stirt.) Hertel, V. Wirth & Vězda are recognized as Fuscidea recensa var. arcuatula (Arnold) Fryday; and Fuscidea scrupulosa (Eckf.) Fryday is shown to be the correct name for Fuscidea subreagens (H. Magn.) Oberholl. & V. Wirth. Fuscidea subfilamentosa (Zahlbr.) Brako is shown to be a member of the Lecidea hypnorum group and the new combination Lecidea subfilamentosa (Zahlbr.) Fryday is made, and Lecidea gyrodes H. Magn., described from Tennessee, is shown to be a synonym of F. recensa var. arcuatula. Fuscidea cyathoides (Ach.) V. Wirth & Vězda, F. kochiana (Hepp) V. Wirth & Vězda and F. lightfootii (Sm.) Coppins & P. James are considered not to have been correctly reported from North America.

Insects Reared from Goldenrod Galls Caused by Eurosta solidaginis Fitch (Diptera: Trypetidae) in Southern Ontario

1953 ◽  
Vol 85 (8) ◽  
pp. 294-296 ◽  
Author(s):  
W. W. Judd
Keyword(s):  
North America ◽  
Northwest Territories ◽  
Eurosta Solidaginis ◽  
Southern Ontario

Studies of the goldenrod gall caused by Eurosta solidaginis Fitch have been made by various authors who reared insects from the galls in North America, e.g. Hughes (1934), Milne (1940) and Ping (1915). Snyder (1898) described the emergence of an adult fly from a gall in Illinois. In Canada, insects have been reared from galls collected in Manitoba and the Northwest Territories by Brodie (1892), in Quebec by Fyles (1894) and in Ontario by Harrington (1895). An opportunity has been taken recently to examine specimens reared by Dr. G. Beall from galls collected at Chatham, Ontario in 1930 and to rear insects from galls in the vicinity of London, Ontario.

scholarly journals Albedo of Melting Sea Ice in the Southern Beaufort Sea

1971 ◽  
Vol 10 (58) ◽  
pp. 101-104 ◽  
Author(s):  
M.P. Langleben
Keyword(s):  
Sea Ice ◽  
Northwest Territories ◽  
Beaufort Sea ◽  
Ice Cover ◽  
Short Wave ◽  
Wave Radiation ◽  
Short Wave Radiation ◽  
Melting Period ◽  
Fast Ice ◽  
Made In

AbstractTwo Kipp hemispherical radiometers mounted back to back and suspended by an 18 m cable from a helicopter flying at an altitude of about 90 m were used to make measurements of incident and reflected short-wave radiation. The helicopter was brought to a hovering position at the instant of measurement to ensure that the radiometers were in the proper attitude and a photograph of the ice cover was taken at the same time. The observations were made in 1969 during 16 flights out of Tuktoyaktuk, Northwest Territories (lat. 69° 26’N., long. 133° 02’W.) over the fast ice extending 80 km north of Tuktoyaktuk. Values of albedo of the ice cover were found to decrease during the melting period according to the equation A = 0.59 —0.32P where P is the degree of puddling of the surface.

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