On hardwood logs, sticks, and on leaves. Shady woods.
1mm spines
On decaying wood, under a log
Helicodendron conglomeratum
( distal end of the coil is going clockwise, shown on the last photo)
On submerge wood in a stream
Non-stromatic, unitunicate, black pyrenomycetes fungi.
Small, hard perithecia up to 0.5 mm in diameter immersed in decorticated wood, with a well-developed neck. In a mixed forest.
Mature spores hyaline, with 3 septa, measure in H2O 25-30x5.9-6.4um
Found on wood incubated from a submerged twig found in a freshwater stream.
Underside of deciduous bark. Park. What a surprise! The white cordons are supporting spheres that start white and as they mature, turn light brown-peach. Each sphere is made of inflated cells; one measured 74 um in diameter. There are several types of clamps.
Karen Nakasone told me that these are called bulbils and Sistotrema and Leucogyrophana s.l. produce them.
Sur copeaux de bois
Chapeau de 0.5 à 2cm
Sporée brune
Spores 6.8-8.7 x 4.7-5.5 μm
Pleurocystides absentes
On corticated Salix branch tiny black perithecia. Perithecia around 1mm in diameter.
Ascospores both ends with a triangular cellular appendage, up to 30um in length.
This was an old specimen, so I couldn't find living asci with alive spores.
Je penche pour Mensularia radiata. Même espèce que #200524046 (https://inaturalist.ca/observations/200524046), touvé au même endroit
Je penche pour Mensularia radiata. Même espèce que #200524047 (https://inaturalist.ca/observations/200524047), touvé au même endroit
Pseudohalonectria lignicola
Found in Quebec, Canada in February 2024. Growing on incubated wood that was found submerged in a freshwater stream.
Microscopy photos are in Melzer
specimens less than 1mm
Reference:
C. A. Shearer. 1989. Pseudohalonectria (Lasiosphaeriaceae), an antagonistic genus from wood in freshwater. Canadian Journal of Botany. 67(7): 1944-1955. doi.org/10.1139/b89-247