Fleshy Fungi of New Brunswick >> Tricholoma fulvum

Tricholoma fulvum (DC.) Bigeard & H. Guill.

Picture of Tricholoma fulvum 05-10-20/02 Picture of Tricholoma fulvum 29-09-20/03

Gregarious (8) in a Pleurozium schreiberi carpet with some Dicranum spp, associated with Abies balsamea and Picea mariana, Little Lepreau, New Brunswick (05-10-19/01).

Two collections:

Tricholoma fulvum, is recognized by its reddish brown viscid to subviscid pileus, lack of a veil, pale yellow lamellae and flesh, and strongly farinaceous odour and taste. Under the microscope its basidiospores are rather typical for the genus in being broadly ellipsoidal and with a large round globule when mounted in water, KOH, NH4OH and Windex, but not in Melzer's Solution. The viscid pileus is probably due to gelatinous material in the pileipellis, although this is not apparent in microscopic sections. Instead the pileipellis is seen as a parallel to somewhat entangled mass of brown strongly encrusted hyphae that do not appear to have become gelatinized.

Collection 29-09-20/03 is unusual for the species in having a very short ventricose stipe. This feature is so marked, both in the young individual and the mature ones, that there is reason to suspect that it might belong in some other species. However, other than the stipe, it is typical of T. fulvum. Perhaps the driveway gravel influenced its growth.

Photograph: D. Malloch (05-10-20/02, 29-09-20/03).