A NEW DAVISOMYCELLA SPECIES ON PINUS BANKSIANA

1967 ◽  
Vol 45 (8) ◽  
pp. 1445-1449 ◽  
Author(s):  
Grant D. Darker

Davisomycella fragilis, a new species of Hypodermataceae, is described on Pinus banksiana and comparisons are made with other hypodermataceous species occurring on the same host.

1956 ◽  
Vol 34 (3) ◽  
pp. 360-376 ◽  
Author(s):  
Roy F. Cain ◽  
Nancy A. Hastings

A new species, Sphaerospora minuta Cain, is described from soil collected under Pinus banksiana, Algonquin Park, Ontario. Growth in pure culture is rapid on various media. Conidia are produced in Botrytis-like clusters on long, dichotomously branched conidiophores. The conidial stage resembles that of Patella abundans (Karsten) Seaver except for the fewer conidia which have a broader attachment to the ampullae. The method of conidial production in both of these species is described in detail and illustrated. Monoconidial cultures of S. minuta produce mature apothecia which are globose, light-brown, and enclosed in an excipulum covered with numerous slender brown septate hairs. The excipulum remains intact until the apothecium is nearly mature and then splits irregularly to expose the nearly white hymenium. The ascospores are hyaline, globose, smooth, and each contains a single large refractive oil globule. Consideration is given to the validity of the genus Sphaerospora as separate from Humaria (Patella).


1959 ◽  
Vol 91 (7) ◽  
pp. 453-456 ◽  
Author(s):  
G. A. Bradley ◽  
D. C. Wighton

Aphids of the species herein described as new can be readily distinguished from all other species in the genus Cinara by the unusual length of the unguis. The feeding site is also characteristic; this is the only species in the genus known to feed on the roots of Pinus banksiana.The species was first collected in 1956 at Lac La Ronge, Saskatchewan, by B. B. McLeod, of the Winnipeg Laboratory. In 1957 it was found by the authors at Cedar Lake, thirty miles north of Vermilion Bay, Ontario, where observations on the life history of the species were carried out.


1961 ◽  
Vol 93 (1) ◽  
pp. 33-34 ◽  
Author(s):  
Robert E. Bugbee

In the spring of 1959, Dr. O. Peck of the Entomology Research Institute, Department of Agriculture, Ottawa, Canada, sent to me a long series of Eurytoma specimens for determination. Dr. J. B. Thomas reared the series from buds of jack pine (Pinus banksiana) and is ready to publish on the biology of the species. This new species has been included in a projected revision of the genus Eurytoma in North America, north of Mexico, but due to the uncertainty as to just when it will be ready for publication, it seems best to publish the description concurrently with the paper by Dr. Thomas, so as not to hold up 'his valuable contribution to the biology of the species.


1983 ◽  
Vol 94 (9-10) ◽  
pp. 591-593
Author(s):  
Kostas Papanicolaou ◽  
Stella Kokkini
Keyword(s):  

1983 ◽  
Vol 94 (3-4) ◽  
pp. 165-172
Author(s):  
T. R. Dudley
Keyword(s):  

1999 ◽  
Vol 110 (7-8) ◽  
pp. 515-520
Author(s):  
C. A. Bianco ◽  
F. Weberling
Keyword(s):  

1990 ◽  
Vol 101 (3-4) ◽  
pp. 109-111
Author(s):  
B. S. Aswal ◽  
A. K. Goel ◽  
B. N. Mehrotra

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