STUDIES OF SOIL FUNGI: II. A NEW SPECIES OF SPHAEROSPORA WITH A BOTRYTIS-LIKE STAGE

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).

1991 ◽  
Vol 69 (3) ◽  
pp. 569-573 ◽  
Author(s):  
R. A. Shoemaker ◽  
C. E. Babcock ◽  
J. A. G. Irwin

The teleomorph of Acrocalymma medicaginis Alcorn & Irwin was formed in pure culture. It is described as a new species, Massarina walkeri. It is contrasted with three somewhat similar species that parasitize legumes: Leptosphaeria pratensis Saccardo & Briard in Briard, Leptosphaeria weimeri n.sp. (anamorph Stagonospora meliloti (Lasch) Petrak), and L. viridella (Peck) Saccardo.


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.


1996 ◽  
Vol 9 (5) ◽  
pp. 813 ◽  
Author(s):  
JL Alcorn

A new species of Cochliobolus, C. heliconiae, is described and illustrated. The species is heterothallic and ascomata were produced in pure culture using two isolates of its Bipolaris anamorph, also described as new, obtained from lesions on Heliconia spp, in northern Australia.


Phytotaxa ◽  
2019 ◽  
Vol 425 (5) ◽  
pp. 290-296 ◽  
Author(s):  
CHUN-BO DONG ◽  
ZHI-YUAN ZHANG ◽  
WAN-HAO CHEN ◽  
YAN-FENG HAN ◽  
JIAN-ZHONG HUANG ◽  
...  

During a survey of rhizosphere soil fungi of Eucommia ulmoides in China, three Gongronella strains were isolated. Phylogenetic analysis showed that these strains grouped into a separate subclade, closely related to Gongronella sichuanensis. The new strains could be distinguished from G. sichuanensis by the smooth-walled, subglobose, or conical-cylindrical apophyses. Both phylogenetic analysis and morphological characteristics supported the three strains being a new species, named as Gongronella zunyiensis.


1970 ◽  
Vol 48 (5) ◽  
pp. 839-845 ◽  
Author(s):  
D. Malloch ◽  
R. F. Cain

The genus Arachnomyces is redescribed and placed in the family Onygenaceae. Four species are described and illustrated. A. nitidus Massee & Salmon, the type of the genus, was collected on a hay-dung compost in Ontario and compared with the type specimen. The type of A. sulphureus Massee & Salmon was examined. A. peruvianus is a new combination for Anixiopsis peruviana Cain. A. minimus is a new species isolated in pure culture from decayed wood collected in Ontario. The peridium of the cleistothecial ascocarps of Arachnomyces consists of an outer dark layer and an inner hyaline layer and has long appendages (except in A. peruvianus). The asci are globose to subglobose and irregularly disposed. The ascospores are one-celled, oblate, reddish brown, smooth or roughened, without germ pores.


Mycologia ◽  
1964 ◽  
Vol 56 (2) ◽  
pp. 153 ◽  
Author(s):  
B. G. Dutta ◽  
G. R. Ghosh ◽  
G. F. Orr ◽  
H. H. Kuehn
Keyword(s):  

Mycologia ◽  
1964 ◽  
Vol 56 (2) ◽  
pp. 153-157 ◽  
Author(s):  
B. G. Dutta ◽  
G. R. Ghosh ◽  
G. F. Orr ◽  
H. H. Kuehn
Keyword(s):  

Mycologia ◽  
1963 ◽  
Vol 55 (6) ◽  
pp. 775 ◽  
Author(s):  
B. G. Dutta ◽  
G. R. Ghosh ◽  
G. F. Orr ◽  
H. H. Kuehn
Keyword(s):  

1993 ◽  
Vol 56 (1) ◽  
pp. 13-17 ◽  
Author(s):  
N. KALCHAYANAND ◽  
B. RAY ◽  
R. A. FIELD

A Clostridium sp., associated with an unusual spoilage of vacuum-packaged refrigerated uncooked (fresh) and roasted beef, was isolated as a pure culture from the spores in spoiled beef. The pure culture was used to study important characteristics and to differentiate it from other clostridial species usually found in beef. The biochemical characteristics, volatile fatty acid and soluble-protein profiles, temperatures and pHs of growth, and temperatures of sporulation, germination, and destruction of the isolate were distinctly different from other Clostridium spp. studied. It is not toxigenic and has 26% guanine plus cytosine. The isolate is a new species and is named Clostridium laramie.


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