The Geographical Distribution and Temporal Variations of Acidic Deposition in Eastern North America

1986 ◽  
pp. 1577-1589
Author(s):  
Peter W. Summers ◽  
Van C. Bowersox ◽  
Gary J. Stensland
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Acidic Deposition ◽  
Temporal Variations ◽  
Eastern North America

The geographical distribution and temporal variations of acidic deposition in Eastern North America

1986 ◽  
Vol 31 (3-4) ◽  
pp. 523-535 ◽  
Author(s):  
Peter W. Summers ◽  
Van C. Bowersox ◽  
Gary J. Stensland
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Acidic Deposition ◽  
Temporal Variations ◽  
Eastern North America

Isthmiella faullii. [Descriptions of Fungi and Bacteria].

1984 ◽  
Author(s):  
P. F. Cannon
Keyword(s):  
Nova Scotia ◽  
North America ◽  
Geographical Distribution ◽  
New Hampshire ◽  
Abies Balsamea ◽  
Eastern North America ◽  
Northern Ontario ◽  
Needle Blight ◽  
Juvenile Plants

Abstract A description is provided for Isthmiella faullii. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Apparently confined to Abies balsamea. DISEASE: Causes a needle blight of Abies balsamea. According to Darker (1932), it 'is the commonest and most destructive of the Hypodermataceae on Abies balsamea in eastern North America'. It is particularly damaging to seedlings and juvenile plants. In northern Ontario, from where the disease was originally identified, infection occurs during the summer, but signs of the disease do not appear until the following spring, when needles become brown and conidiomata develop, conidia being discharged in July, and shortly after this ascomata begin to form, maturing in July of the following year. GEOGRAPHICAL DISTRIBUTION: Reported from Canada: Nova Scotia, Ontario, Quebec and USA: Michigan and New Hampshire. TRANSMISSION: Through air dispersal of ascospores, which directly infect the leaves (Darker, 1932).

Glugea weissenbergi. [Descriptions of Fungi and Bacteria].

2019 ◽  
Author(s):  
D. W. Minter
Keyword(s):  
North America ◽  
Freshwater Fish ◽  
Geographical Distribution ◽  
Eastern North America ◽  
The Family

Abstract This article describes the morphology, morphometrics, and geographical distribution of the parasite Glugea weissenbergi infecting largely freshwater fish of the family Gasterosteidae (sticklebacks) in temperate eastern North America. This parasite is only endemic in Maryland, USA.

Nectria coccinea. [Descriptions of Fungi and Bacteria].

1977 ◽  
Author(s):  
C. Booth
Keyword(s):  
Hong Kong ◽  
North America ◽  
Geographical Distribution ◽  
Fagus Sylvatica ◽  
Scale Insects ◽  
Northern Europe ◽  
Eastern North America ◽  
Beech Bark Disease ◽  
Ascospore Discharge ◽  
Serious Disease

Abstract A description is provided for Nectria coccinea. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Fagus sylvatica (beech) DISEASE: Beech bark disease, in association with beech scale (Cryptococcus fagi[Cryptococcus fagisuga]); this is the most serious disease of beech in Britain. It has also been reported as pathogenic to Ganothus velutinus (49, 1677). The perithecia are also frequently found on many other hard wood and coniferous trees. GEOGRAPHICAL DISTRIBUTION: In association with beech bark disease it is only known in Europe (Denmark, France, UK) and eastern North America. It is common in northern Europe on other hosts probably as a saprophyte and it has also been recorded in Australia, Hong Kong, India and New Gledonia. TRANSMISSION: Ascospore discharge is associated with wet conditions (54, 5092). The ascospores are disseminated in air and penetration of the host is through bark fissures or bark wounds caused by scale insects (54, 5560).

REVISION OF THE SUBFAMILY SPHAERIDIINAE OF AMERICA NORTH OF MEXICO (COLEOPTERA: HYDROPHILIDAE). SUPPLEMENTUM 2

1984 ◽  
Vol 116 (4) ◽  
pp. 555-566 ◽  
Author(s):  
Aleš Smetana
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Type Species ◽  
Additional Data ◽  
Florida Keys ◽  
Eastern North America ◽  
Equatorial Africa ◽  
First Time

AbstractPelosoma pecki is described as new from specimens from the Florida Keys (Upper Matacumba Key) and from Mexico (Oaxaca). The genus Genyon Smetana 1978 (type-species Cercyon navicularis Zimmerman 1869, from eastern North America) is placed in synonymy with Tectosternum Balfour-Browne 1958 (type-species T. exstriatum Balfour-Browne 1958, from equatorial Africa). A lectotype is designated for Pelosoma prosternale Sharp 1882, and Pelosoma praecursor Smetana 1978 is placed in synonymy with P. prosternale Sharp 1882.Omicrus intermedius Smetana and the genus Cycrillum Knisch, with the species C. strigicolle (Sharp), are recorded for the first time from North America.Additional data on bionomics, geographical distribution, and synonymy of many species are presented.

Mycosphaerella convallariae. [Descriptions of Fungi and Bacteria].

1990 ◽  
Author(s):  
E. Punithalingam
Keyword(s):  
North America ◽  
Geographical Distribution ◽  
Leaf Spot ◽  
Eastern North America ◽  
Disease Symptoms ◽  
Water Splash ◽  
Necrotic Spots ◽  
Convallaria Majalis

Abstract A description is provided for Mycosphaerella convallariae. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOST: Convallaria majalis (lily of the valley). DISEASE: Leaf spot or blotch or blight of lily of the valley. The first disease symptoms appear a few days after rain or a wet period (McKeen & Zimmer, 1964). At first the visible symptoms are minute necrotic spots with halos which later enlarge rapidly to form oblong to circular spots or blotches with concentric layers of light and dark zones. When the infection is severe secondary lesions develop, coalesce and kill the leaf. GEOGRAPHICAL DISTRIBUTION: Europe (Austria, Hungary, Italy, Romania, U.S.S.R.); Eastern North America (Canada, Ontario; U.S.A., Pennsylvania). TRANSMISSION: Conidia are dispersed by water splash. In Ontario, Canada, the fungus is reported to overwinter in the ascomatal state and ascospores are released following a wet period in May or June (McKeen & Zimmer, 1964). It has also been suggested that two to four cycles of the Ascochyta stage are completed in the summer.

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