Tympanis spermatiospora (Nyl.) Nyl.
no common name
Tympanidaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
no common name
Tympanidaceae
Species account author: Ian Gibson.
Extracted from Matchmaker: Mushrooms of the Pacific Northwest.
Introduction to the Macrofungi
Photograph
Species Information
Summary:
Features include 1) small, hard, black cups that emerge from dead branches of Populus spp., separately or in clusters, 2) spore-bearing surface black or greenish when moist, 3) absent or very short stem, and 4) microscopic characters. The asci of species of Tympanis are usually filled with many small secondary spores: 8 well-developed ascospores are found extremely rarely, (Breitenbach & Kranzlin).
Microscopic:
primary ascospores 5-8 x 3-4 microns, broadly elliptic to nearly round, colorless, one-celled or two-celled, uniseriate, secondary ascospores 2.0-4.0 x 1.0-1.5 microns, cylindric to allantoid [curved sausage-shaped], colorless, one-celled; asci at first 8-spored, finally multispored, (55)70-90(100) x (9)10-13(15) microns, cylindric, obtuse at top, short-stemmed, at first with walls thickened and gelatinized, becoming thinner when mature; paraphyses 1.5-2.0 microns wide, filiform [thread-like], colorless, septate, simple or branched, "the tips slightly swollen and embedded in a brownish, gelatinous matrix, forming an epithecium"; conidia 2.0-5.0 x 1.0-1.5 microns, cylindric to allantoid, colorless, one-celled, borne at tip and along sides of conidiophore, conidiophores lining the cavity, filiform, colorless, septate, simple or branched, (Groves), spore-like bodies 3-3.5 microns x 1 micron, densely filling asci that reach a length of 75-80 microns and a width of 12 microns, clavate; paraphyses slender, widened in upper part, the ends adhering and forming a brown epithecium, (Seaver), primary spores 5-8 x 3-4 microns, elliptic; asci 70-90 x 10-13 microns, (Hansen), ascospores "broadly ellipsoid-fusoid to subglobose", "becoming one-septate during germination and producing at each end a group of pyriform to subglobose cells", (Ouellette)
Notes:
Tympanis spermatiospora is found from NF to NY, in ID, CO and IA, and also in Europe, (Seaver). It is also found in Finland and Sweden, (Hansen). Collections were examined from BC, ID, MB, NS, ON, PQ, CT, ME, NH, VT, Austria, and Germany, (Groves). A collection was examined also from NF (Ouellette).
Habitat and Range
Habitat
gregarious, separate, or cespitose in clusters of about 2-8, erumpent; on Populus spp.; conidial fruitbodies "erumpent, gregarious, cespitose in clusters of up to 15, occasionally single", (Groves), single or more often in dense cespitose clusters, on dead branches of Populus, especially Populus tremuloides (quaking aspen), (Seaver), erumpent, separate or cespitose, on Populus or Salix, (Hansen)
Synonyms
Synonyms and Alternate Names:
Cenangium populinum Fuckel
Cenangium spermatiosporum (Nyl.) Sacc.
Naematelia aurantia "(Schwein.) Burt, Ann. Mo. bot. Gdn"
Tympanis populina (Fuckel) Sacc.