Coccomyces papillatus. [Descriptions of Fungi and Bacteria].

Author(s):  
D. W. Minter

Abstract A description is provided for Coccomyces papillatus. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. DISEASE: The ecology of this fungus is completely unknown. SHERWOOD (1980) noted strong similarities with Coccomyces strobi (IMI Descriptions No. 1292), which is known to occur on brittle dead attached twigs of native North American five-needled pines in North America and some European countries to which they have been introduced. This habitat is often associated with endobionts involved in self-pruning ecosystems which later fruit on dead twigs, best exemplified by Colpoma quercinum on Quercus and C. crispum on Picea (IMI Descriptions Nos 942. 1333), and Therrya fuckelii and T. pini on Pinus (IMI Descriptions Nos 1297, 1298) and it is tempting to speculate that C. papillatus too will prove to occupy this sort of niche. HOSTS: Pinus wallichiana (twig). GEOGRAPHICAL DISTRIBUTION: ASIA: Pakistan. TRANSMISSION: Not known. Presumably by air-borne ascospores released in humid conditions.

1967 ◽  
Vol 45 (5) ◽  
pp. 565-577 ◽  
Author(s):  
I. J. Bassett

The taxonomy, chromosome numbers, distribution, and notes on phytogeography of the one introduced and the six native North American Plantago species in sections Holopsyllium Pilger, Palaeopsyllium Pilger, and Lamprosantha Decne. are presented. Although there has been considerable confusion among the species Plantago eriopoda Torr., P. tweedyi Gray, and P. canescens Adams, this investigation demonstrates that they can be readily separated and that each has a distinctive geographical distribution. Plantago macrocarpa Cham. & Schlecht., P. cordata Lam., P. eriopoda Torr., P. tweedyi Gray, P. sparsiflora Michx., and P. media L. were found to have 24 somatic chromosomes and P. canescens Adams, 12.


Author(s):  

Abstract A new distribution map is provided for Rhagoletis indifferens Curran Diptera: Tephritidae Western cherry fruit fly, North American Cherry fruit fly. Attacks Prunus avium and sometimes P. virginiana, P. salicina and P. subcordata Information is given on the geographical distribution in NORTH AMERICA, Canada, British Columbia, USA, California, Idaho, Montana, Oregon, Utah, Washington, Wyoming.


Author(s):  
Rachel Margolis ◽  
Bruno Arpino

Intergenerational relationships between grandparents and grandchildren can offer tremendous benefits to family members of each generation. The demography of grandparenthood – the timing, length and population characteristics – shape the extent to which young children have grandparents available, how many grandparents are alive, and the duration of overlap with grandparents. In this chapter, we examine how the demography of grandparenthood varies across 16 countries in Europe and two countries in North America, and why it is changing. Next, we examine variation in two key determinants of intergenerational relationships – the labour force participation and health of grandparents. Last, we comment on some important changes in the demography of grandparenthood that may come in the future.


1989 ◽  
Vol 10 (1) ◽  
pp. 63-66
Author(s):  
Shawn D. Haley

The earliest cultures of North America produced exquisitely made fluted projectile points. Over time, projectile points became progressively more crude in form and workmanship. A common explanation for this apparent regression is that native North American stone workers “lost the art of fine flint knapping.” This hypothesis is questioned and an alternative offered. It is suggested that regression had not occurred. Rather, there had been a shift in epistemological importance away from projectile points into more relevant areas for those more recent cultures. Points simply were no longer important to them.


Théologiques ◽  
2002 ◽  
Vol 9 (1) ◽  
pp. 113-142
Author(s):  
John A. Grim

ABSTRACT Different indigenous nations in North America provide examples of mystical participation in the processes of creation. Some observers dismiss native communities as fragmented or romantically reimaged as "ecological Indians", yet, the tenacity of their religious insights deserve attention. Intellectually framed in images of interactions between specific peoples with particular geographical places, these images are also embedded in dynamic performances. This paper presents a comparative study of mystical paths among First Peoples in which personal and communal symbols fuse psychic, somatic, and social energies with local landscapes. Experienced as synesthetic intuitions, these images are made more conscious in rituals. These dynamic performances link words, actions, sounds, sights, and sensory observations. Ritualized expressions of native mystical life are themselves interpretive reflections back upon the personal, communal, spiritual, and ecological realms from which they emerge. Native American religious ways, thus, are lifeway complexes that address the limits and problems of the human condition, and foster mature mystical understanding.


2013 ◽  
Vol 103 (2) ◽  
pp. 190-199 ◽  
Author(s):  
Jaime Aguayo ◽  
Gerard C. Adams ◽  
Fabien Halkett ◽  
Mursel Catal ◽  
Claude Husson ◽  
...  

Alder decline caused by Phytophthora alni has been one of the most important diseases of natural ecosystems in Europe during the last 20 years. The emergence of P. alni subsp. alni —the pathogen responsible for the epidemic—is linked to an interspecific hybridization event between two parental species: P. alni subsp. multiformis and P. alni subsp. uniformis. One of the parental species, P. alni subsp. uniformis, has been isolated in several European countries and, recently, in North America. The objective of this work was to assess the level of genetic diversity, the population genetic structure, and the putative reproduction mode and mating system of P. alni subsp. uniformis. Five new polymorphic microsatellite markers were used to contrast both geographical populations. The study comprised 71 isolates of P. alni subsp. uniformis collected from eight European countries and 10 locations in North America. Our results revealed strong differences between continental populations (Fst = 0.88; Rst = 0.74), with no evidence for gene flow. European isolates showed extremely low genetic diversity compared with the North American collection. Selfing appears to be the predominant mating system in both continental collections. The results suggest that the European P. alni subsp. uniformis population is most likely alien and derives from the introduction of a few individuals, whereas the North American population probably is an indigenous population.


1992 ◽  
Vol 124 (4) ◽  
pp. 725-728 ◽  
Author(s):  
Marie-Claude Lartvière

AbstractThe Eurasian nabid Himacerus apterus (Fabricius) is reported for the first time for North America. Several individuals have been collected between 1943 and 1989 in eastern Nova Scotia. Generic and specific diagnoses are given, and the genus is inserted in Slater and Baranowski’s (1978) key to the genera of North American Nabidae. The geographical distribution and bionomics of the species are briefly discussed.


1963 ◽  
Vol 95 (1) ◽  
pp. 107-107 ◽  
Author(s):  
J. Sherman Bleakney

In European countries parasitism of toads by flies of the genus Bufolucilia is of rather common occurence. Although the species silvarum is holarctic in distribution, Hall (1947) considers it “not a common species” in North America. At the time of his publication it had been reported from only one species of North American anuran, the Bullfrog, Rana catesbeiana, when forty-eight parasitized frogs of this species were discovered near Franklin, California. Since then, reference to the species in the literature seems to be limited to reports of the adult flies (James, 1953; Schoof, et al., 1956; and Judd, 1956).


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