A new Nitschkia on western conifers and its probable microconidial state

1979 ◽  
Vol 57 (20) ◽  
pp. 2113-2115 ◽  
Author(s):  
A. Funk
Keyword(s):  
British Columbia ◽  
New Species ◽  
Pseudotsuga Menziesii ◽  
Tsuga Heterophylla ◽  
Douglas Fir ◽  
Western Hemlock ◽  
Coastal British Columbia ◽  
A New Species

A new species, Nitschkia molnarii (Ascomycetes: Nitschkiaceae), is described from Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) and western hemlock (Tsuga heterophylla (Raf.) Sarg.) in coastal British Columbia, Canada. A microconidial state closely associated with the ascocarps is described, but not separately named.

Diaporthe lokoyae n. sp., the perfect state of Phomopsis lokoyae

1968 ◽  
Vol 46 (5) ◽  
pp. 601-603 ◽  
Author(s):  
A. Funk
Keyword(s):  
New Species ◽  
Pseudotsuga Menziesii ◽  
Tsuga Heterophylla ◽  
Douglas Fir ◽  
Western Hemlock ◽  
Perfect State ◽  
Ascigerous State ◽  
A New Species

A new species of Diaporthe, for which the name D. lokoyae Funk is proposed, is described on the host Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) and in culture. This Diaporthe is shown to be the ascigerous state of Phomopsis lokoyae Hahn. An outbreak of dieback in Douglas fir associated with this Diaporthe is described and discussed; a single occurrence on western hemlock (Tsuga heterophylla (Raf.) Sarg.) is reported.

New microfungi on coastal Douglas fir

1975 ◽  
Vol 53 (20) ◽  
pp. 2297-2302 ◽  
Author(s):  
A. Funk
Keyword(s):  
British Columbia ◽  
New Species ◽  
Pseudotsuga Menziesii ◽  
Douglas Fir ◽  
Three New Species ◽  
Coastal British Columbia

Three new species of ascomycetes and two coelomycetes are described from diseased Douglas fir (Pseudotsuga menziesii (Mirb.) Franco) from coastal British Columbia, Canada, viz., Coccomyces pseudotsugae n. sp., Phragmoporthe pseudotsugae n. sp., and Botryosphaeria pseudotsugae n. sp.; Phomopsis portei n. sp. and Haplosporella sp. are associated with the latter two ascomycetes, respectively, and possibly represent their conidial states.

COCCOMYCES HETEROPHYLLAE N. SP., A HYPODERMATACEOUS FUNGUS FROM THE PERIDERM OF WESTERN HEMLOCK

1967 ◽  
Vol 45 (12) ◽  
pp. 2263-2266
Author(s):  
A. Funk
Keyword(s):  
British Columbia ◽  
New Species ◽  
Life Cycle ◽  
Tsuga Heterophylla ◽  
Washington State ◽  
Western Hemlock ◽  
Coastal Forest ◽  
Cultural Characteristics ◽  
Artificial Inoculations ◽  
A New Species

A new species of Coccomyces is described. The life cycle and cultural characteristics are presented. The fungus is associated with various bark diseases of western hemlock (Tsuga heterophylla) in the Coastal forest of British Columbia and Washington State. Some evidence of weak parasitism was found in natural infections; artificial inoculations with the fungus were negative.

A New Species of the Genus Cinara Curtis (Homoptera: Aphididae) from Tsuga heterophylla (Raf.) Sarg

1960 ◽  
Vol 92 (8) ◽  
pp. 605-608 ◽  
Author(s):  
G. A. Bradley
Keyword(s):  
British Columbia ◽  
New Species ◽  
Vancouver Island ◽  
Tsuga Heterophylla ◽  
The Body ◽  
Western Hemlock ◽  
A New Species ◽  
Made In

Aphids of the species described below were first seen by the author at Cowichan Lake, Vancouver Island, in 1956. Additional observations and collections were made in 1959 at several other locations in southern British Columbia.The species is unique in that it is apparently the only one in the genus living on western hemlock, Tsuga heterophylla (Raf.) Sarg.All measurements of the body and appendages are in millimetres.

Survival dynamics of mechanically topped Douglas-fir (Pseudotsuga menziesii) and western hemlock (Tsuga heterophylla) snags in Douglas-fir plantations, Oregon, USA

2019 ◽  
Vol 433 ◽  
pp. 105-110
Author(s):  
Matthew E. Hane ◽  
Andrew J. Kroll ◽  
Aaron Springford ◽  
Jack Giovanini ◽  
Mike Rochelle ◽  
...  
Keyword(s):  
Pseudotsuga Menziesii ◽  
Tsuga Heterophylla ◽  
Douglas Fir ◽  
Western Hemlock

scholarly journals Estimating the Number of Filled Seeds per Cone of Western Hemlock from Coastal British Columbia

1996 ◽  
Vol 11 (2) ◽  
pp. 44-49
Author(s):  
M. D. Meagher
Keyword(s):  
British Columbia ◽  
Tsuga Heterophylla ◽  
Western Hemlock ◽  
Linear Relationships ◽  
The Face ◽  
Predetermined Level ◽  
Exponential Factors ◽  
The Relationship ◽  
Coastal British Columbia ◽  
Filled Seeds

Abstract Unopened western hemlock (Tsuga heterophylla) cones from coastal British Columbia were tested for the relationship between total filled seeds per cone and the number of sound seeds exposed by slicing through the center of the cone's long axis, and with cone length. Predictive linear relationships of total number of filled seeds per cone (TFS), based on number of filled seeds cut on the face through the cone's long axis (CC), were found in a cone sample bulked from a number of trees. The regression based on CC explained about 63% of the variation in TFS. More accurate estimates of TFS were found where cone length, and exponential factors of CC and cone length, were included in the analysis. Analyses of cones from seven parents did not find statistically significant trends of TFS on CC in all cases, and differed in slope in most cases. Sample sizes (cones) to estimate TFS to a predetermined level of precision were much larger than cones needed to accept or reject a tree for study. West. J. Appl. For. (11)2:44-49.

Palynology and paleoecology of postglacial sediments in an anoxic basin, Saanich Inlet, British Columbia

1983 ◽  
Vol 20 (5) ◽  
pp. 873-885 ◽  
Author(s):  
Linda E. Heusser
Keyword(s):  
British Columbia ◽  
Pinus Contorta ◽  
Tsuga Heterophylla ◽  
Douglas Fir ◽  
Western Hemlock ◽  
Thuja Plicata ◽  
Alnus Rubra ◽  
Red Cedar ◽  
Saanich Inlet ◽  
Anoxic Basin

Varved, black clayey silts deposited in the marine waters of Saanich Inlet yield unusually abundant and diverse pollen assemblages derived from the coastal Douglas-fir (Pseudotsuga) and western hemlock (Tsuga heterophylla) forests of southwestern British Columbia. The 12 000 year palynological record chronicles the development of vegetation since ice left Saanich Inlet: the succession of pine (Pinus contorta) and alder (Alnus rubra) woodlands by forests characterized by Douglas-fir and oak (Quercus) and later by western hemlock and red cedar (Thuja plicata). Rapid deposition of annual layers of pollen, charcoal, and other terrigenous particles provides detailed evidence of changes in land use during the past few hundred years: settlement, logging, farming, and urbanization. Vegetational and climatic changes inferred from pollen spectra in the marine sediments of Saanich Inlet compare favorably with changes inferred from correlative pollen assemblages previously described from adjacent parts of Vancouver Island and the Fraser River valley.

SPHAERULARIA UNGULACAUDA SP. NOV. (NEMATODA: ALLANTONEMATIDAE) FROM THE DOUGLAS FIR BEETLE, DENDROCTONUS PSEUDOTSUGAE HOPK., WITH KEY TO SPHAERULARIA SPECIES (EMENDED)

1957 ◽  
Vol 35 (6) ◽  
pp. 635-639 ◽  
Author(s):  
M. A. Khan
Keyword(s):  
British Columbia ◽  
New Species ◽  
Douglas Fir ◽  
Key To Species ◽  
Dendroctonus Pseudotsugae ◽  
Diagnostic Characters ◽  
A New Species

A new species of nematode, Sphaerularia ungulacauda (Allantonematidae), is described from the Douglas fir beetle, Dendroctonus pseudotsugae Hopk, from British Columbia, Canada. The diagnostic characters of the genus Sphaerularia are emended and a key to species is given.

Description and Habits of a New Species of Phytophaga (Diptera: Cecidomyiidae) from Western Red Cedar Cones

1959 ◽  
Vol 91 (11) ◽  
pp. 719-723 ◽  
Author(s):  
A. F. Hedlin
Keyword(s):  
New Species ◽  
Pseudotsuga Menziesii ◽  
Douglas Fir ◽  
Thuja Plicata ◽  
Gall Midges ◽  
Red Cedar ◽  
Western Red Cedar ◽  
A New Species

Gall midges have been reported from cones of western red cedar, Thuja plicata Donn., but none have been described. Keen (1958) reported the occurrence in Washington and Oregon of a cone midge which was credited with destroying 90 per cent of the seed. In 1940 Prebble and Graham reported a midge in cones of western red cedar at Cowichan Lake, B.C. These reports almost certainly refer to the midge described here. The only other species taken from red cedar cones was Lestodiplosis taxiconis Foote, but it occurred in verysmall numbers; previously it has been reported only from cones of Douglas fir, Pseudotsuga menziesii (Mirb.) Franco (Foote, 1956).

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