PALYNOLOGY OF LATE TERTIARY SEDIMENTS FROM QUEEN CHARLOTTE ISLANDS, BRITISH COLUMBIA

1966 ◽  
Vol 44 (2) ◽  
pp. 171-208 ◽  
Author(s):  
Helene A. Martin ◽  
Glenn E. Rouse

Spores, pollen grains, and other microfossils are described from the Skonun Formation of Queen Charlotte Islands, situated off the western coast of British Columbia. The microfossil assemblage, apparently late Miocene to early Pliocene in age, is analyzed and compared with both other fossil floras and the extant flora. Results indicate the presence of distinctive genera and species, some of whose living equivalents are found only in Asia, Central and South America, or Eastern North America. The phytogeographic and paleoecologic implications of the microfossils are discussed, and reconstructions are attempted for both the climate and the physiography during the time of deposition.

1959 ◽  
Vol 37 (2) ◽  
pp. 173-208 ◽  
Author(s):  
Doris Löve ◽  
Pierre Dansereau

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.


Author(s):  

Abstract A new distribution map is provided for Xanthomonas gardneri (ex Sutic) Jones et al. Gammaproteobacteria: Xanthomonadales: Xanthomonadaceae. Hosts: tomato (Solanum lycopersicum) and pepper (Capsicum annuum). Information is given on the geographical distribution in Europe (Bulgaria and Russia), Asia (Malaysia), Africa (Ethiopia and Reunion), North America (Canada, British Columbia, Ontario, USA, Michigan, Ohio and Pennsylvania), Central America and Caribbean (Costa Rica) and South America (Brazil, Espirito Santo, Goias, Minas Gerais, Parana, Rio Grande do Sul and Santa Catarina).


Author(s):  

Abstract A new distribution map is provided for Physoderma alfalfae (Pat. & Lagerh.) Karling. Hosts: Lucerne (Medicago sativa) and Medicago spp. Information is given on the geographical distribution in ASIA, India (Punjab), Iran, Israel, Pakistan, AUSTRALASIA & OCEANIA, Australia, New Zealand, EUROPE, Belgium, Britain, Cyprus, Czechoslovakia, Denmark, France, Germany, Greece, Italy, Netherlands, Portugal, Romania, Sweden, Switzerland, NORTH AMERICA, Canada (British Columbia), Mexico, USA, SOUTH AMERICA, Argentina, Chile, Ecuador, Peru.


Author(s):  

Abstract A new distribution map is provided for Little cherry virus 1 (Closteroviridae: Velarivirus). Hosts: Prunus spp. Information on the geographical distribution in Europe (Belgium, Czech Republic, France, Germany, Greece, Hungary, Italy, Mainland Italy, Poland, Romania, Slovakia, Spain, Switzerland, UK, England and Wales), Asia (China, Hebei, Liaoning, Shandong, India, Japan, Honshu, Korea Republic, Turkey), Africa (Morocco), North America (Canada, British Columbia, USA, California, Oregon, Washington), South America (Chile) and Oceania (Australia, Queensland, Tasmania, New Zealand) is also given.


Author(s):  
D. W. Minter

Abstract A description is provided for Arthrinium sphaerospermum, which is most frequently encountered as a saprobe on decaying leaves and stems of plants, but is also known to live as an endophyte, for example in stems of Eucalyptus, and in the phyllosphere, for example of Iris. This fungus has also been reported as the cause of poisoning through contamination of sugarcane and the causal agent of a dermatomycosis in humans. Some information on its associated organisms and substrata, habitat, dispersal and transmission, economic impacts (positive and negative), and conservation status is given, along with details of its geographical distribution (North America (Canada (British Columbia, New Brunswick, Ontario), Mexico, USA (Georgia, Iowa, New Jersey, New York, Ohio, South Carolina, Texas)), South America (Argentina, Uruguay), Asia (Armenia, China, India (Chhattisgarh, Meghalaya, Uttarakhand), Iran, Pakistan, Russia (Sakhalin Oblast), Uzbekistan), Europe (Czech Republic, Estonia, Finland, Germany, Latvia, Netherlands, Norway, Poland, Russia (Leningrad Oblast), Switzerland, Ukraine, UK)).


Author(s):  

Abstract A new distribution map is provided for Tilletia contraversa Kuhn. Hosts: Wheat (Triticum), barley (Hordeum) and other Poaceae. Information is given on the geographical distribution in Africa, Algeria, Libya, Morocco, Tunisia, Asia, Afghanistan, Iran, Iraq, Japan, Russia, Azerbaijan, Alma-ata, Armenia, Transcaucasia, Turkmenistan, Kirghizia, Georgia, Kazakhstan, Tadshikistan, Turkmenia, Uzbekistan, Siberia, Stavropol, Moldavia, Crimea, Rostov, Voronezh, Syria, Turkey, Australasia & Oceania, Australia, New South Wales, South Australia, Victoria, Europe, Albania, Austria, Bulgaria, Czechoslovakia, Denmark, France, Germany, Greece, Hungary, Italy, Poland, Romania, Spain, Sweden, Switzerland, Yugoslavia, North America, Canada, British Columbia, Ontario, USA, Colorado, Idaho, Montana, New York, Oregon, Utah, Washington, Wyoming, NW states, California, Idaho, Indiana, Montana, New York, Oregon, Utah, South America, Argentina, Uruguay.


Author(s):  

Abstract A new distribution map is provided for Melampsora medusae Thum. Hosts: Populus spp. and conifers. Information is given on the geographical distribution in ASIA, Japan, AUSTRALASIA & OCEANIA, Australia, New Zealand (N. Island), EUROPE, France (S.), Spain, NORTH AMERICA, Canada (British Columbia), USA (widespread in N.E.), SOUTH AMERICA, Chile.


Author(s):  

Abstract A new distribution map is provided for Phomopsis vaccinii Shear. Sodariomycetes: Diaporthales: Diaporthaceae. Hosts: Vaccinium spp. Information is given on the geographical distribution in Europe (Germany, Latvia, Lithuania, Netherlands, Poland, Romania and UK), Asia (China, Shandong), North America (Canada, British Columbia, New Brunswick, Nova Scotia, Quebec, USA, Arkansas, Illinois, Indiana, Maine, Maryland, Massachusetts, Michigan, Montana, New Jersey, North Carolina, Oregon, Washington, West Virginia and Wisconsin) and South America (Chile).


Author(s):  
D. W. Minter

Abstract A description is provided for Mycosphaerella iridis, a terrestrial fungus, parasitic and causing brownish spots on the distal parts of older leaves. Some information on its habitats, economic impacts, dispersal and transmission and conservation status is given, along with details of its geographical distribution (Africa (Zambia, Zimbabwe), North America (Canada (British Columbia, Nova Scotia, Ontario, Saskachewan, Quebec), USA (California, Colorado, Idaho, Indiana, New jersey, New Mexico, North Carolina, Utah, Wyoming), South America (Venezuela), Asia (Armenia, China, Cyprus, Georgia, India (Himachal Pradesh, Jammu & Kashmir), Iran, Kazakhstan (Alma-Atinskaya oblast, Chimkentskaya oblast), Kyrgyzstan, Turkey, Turkmenistan), Australasia (New Zealand), Caribbean (St. Vincent), Europe (Austria, Belgium, former Czechoslovakia, Denmark, Estonia, France, Germany, Greece, Hungary, Ireland, Italy, Netherlands, Norway, Poland, Portugal, Romania, Russia (Leningradskaya oblast, Novgorodskaya oblast, Pskovskaya oblast, Yaroslavskaya oblast), Slovakia, Spain, Sweden, Switzerland, Ukraine, UK))) and hosts.


Zootaxa ◽  
2020 ◽  
Vol 4808 (2) ◽  
pp. 201-250
Author(s):  
ALAN A. MYERS ◽  
JAMES K. LOWRY

The amphipod genus Orchestia is revised. It now includes 10 species of which three are new: O. forchuensis sp. nov. from north-eastern North America and Iceland., O. perezi sp. nov. from Chile and O. tabladoi sp. nov. from Argentina. Orchestia inaequalipes (K.H. Barnard 1951) is reinstated. The type species of the genus, O. gammarellus is redescribed based on material from Fountainstown, Ireland and a neotype is established to stabilize the species. The species was originally described from a garden in Leiden, far from the sea. Its true identity is unknown and no type material exists. Orchestia gammarellus (Pallas, 1776) is shown to be a sibling species group with members in both hemispheres of the temperate Atlantic as well along the Pacific coast of South America. A hypothesis for the establishment of the current distribution of Orchestia species is presented that extends back to the Cretaceous. 


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