Pestalopezia tsugae A. Funk
no common name
Helotiaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
no common name
Helotiaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
Photograph
Species Information
Summary:
Features include tiny disc-shaped fruitbodies on hemlock, the underside grayish brown and pruinose, the spore-bearing upper surface dark brown, and the stem short or almost absent. Microscopic characters include 4-spored asci.
Microscopic:
spores 20-24 x 10-14 microns from 4-spored asci, 30 x 10 microns from 2-spored asci, elliptic, dark brown with brittle epispore, with one or two droplets, not septate; asci 4-spored, occasionally 2-spored, 110 x 15 microns, cylindric, pore not staining in iodine; paraphyses filiform, colorless, simple, greatly inflated at tip with brown spherical cells 6-10 microns in diameter, forming a dark brown epithecium; narrow hypothecium of yellowish textura intricata, medullary excipulum of white textura globulosa, ectal excipulum of light brown texture globulosa
Notes:
Pestalopezia tsugae was described from BC.
Habitat and Range
SIMILAR SPECIES
Other Pestalopezia species including Pestalopezia brunneopruinosa have colorless to light brown spores, and their ascus pore stains blue in iodine, (Funk).Habitat
erumpent, single or in small groups, in stem of Tsuga heterophylla (Western Hemlock)