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 Add this item to the list  Trametes heteromorpha (Fries) Bres.
Page number:400 
Description type:Culture description 
Description:Trametes heteromorpha (Fries) Bres.
Cultural characters: (Pl. XVII, Fig. 7; Pl. XVIII, Figs. 19 to 23).
Growth characters. Growth slow, plates covered in five to six weeks. Advancing zone even, appressed, hyaline, the limit of growth usually clearly defined. Mat white, at first downy, translucent, becoming more compact, woolly, opaque, mostly appressed but frequently with a zone of raised mycelium midway across colony, usually fruiting after five to six weeks over area of newest growth remote from inoculum, the fruiting surfaces on slightly raised woolly mycelium, the pores broad with relatively thick dissepiments. Reverse unchanged. Odor slight, fruity. On gallic and tannic acid agars no diffusion zones, colony 2.0-2.5 cm. diameter on gallic acid agar, no growth or only a trace on tannic acid agar.
Hyphal characters. Advancing zone: hyphae hyaline, nodose-septate, frequently branched, 2.2-4.5 µm diameter. Aeyial mycelium: (a) hyphae as in advancing zone, up to 6.0 µm. diameter, the broader hyphae frequently having watts irregularly thickened and refractive, and lumina narrow; (b) fiber hyphae numerous, aseptate, rarely branched, 2.2-3.0 µm diameter, curving and interwoven. Fruit body: (a) nodose-septate and (b) fiber hyphae as in aerial mycelium; (c) basidia 6.0-7.5 µm diameter, bearing Tour sterigmata up to 7.5 µm in length; (d) basidiospores hyaline, even, cylindric, slightly flattened on one side, 10.8-13.5 x 3.6-4.5 µm. Submerged mycelium: nodose-septate hyphae as in aerial mycelium.
Type of rot: brown cubical rot of coniferous trees.
Descriptions of cultural characters: Davidson, Campbell, and Blaisdell (64), Mounce (111).
The two key patterns for Trametes heteromorpha are identical with those for T. serialis, T. sepium, and T. variiformis. Descriptive keys, in which separations are based on macroscopic appearance and size of basidiospores, have been inserted but these have not proved satisfactory. It has been found necessary, therefore, to submit isolates that have these key patterns to interfertility tests. Such a test requires the isolation of single spore cultures from the unknown culture and the pairing of these with single spore cultures from authentic fruit bodies of Trametes heteromorpha, T. serialis, and T. variiformis. To date it has not been possible to obtain. single spore cultures from T. sepium and this species has not been included in the tests. To illustrate, V702 was isolated from a decay in Tsuga heterophylla. Its cultural characters showed it to belong to one of the species within the group.
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