Taxon Details: Boletellus singeri Gonz.-Veláz. & R.Valenz.
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Family:

Boletaceae (Basidiomycota)
Scientific Name:

Boletellus singeri Gonz.-Veláz. & R.Valenz.
Primary Citation:

A new species of Boletellus (Basidiomycotina, Agaricales: Boletaceae) from Mexico
Mycotaxon 55: 400. 1995
Accepted Name:

This name is currently accepted.
Description:

Diagnosis: Glutinous pileus and stipe with white glutinous veil that may adhere to pileus margin or form an annulus.

Distribution: Mexico, Belize.

Ectomycorrhiza: Pinaceae, Fagaceae

Commentary: Viscid overall, it is essentially identical to B. longicollis from E & SE Asia. The spore size and shape will distinguish them. The veil may or may not form an annulus, but sometimes it forms appendiculate remnants at the pileus margin. The spore apex is traversed by the intercostal fissures, unlike B. jalapensis and B. elatus which have a shallow, circular depression at the apex surrounded by a 'collar' where the ribs (costae) fuse. See SEM's. Until formal recognition, this species had been erroneously called B. jalapensis.

Publication notes: See Halling, R.E., B. Ortiz-Santana. 2009. A revision of Boletellus sect. Ixocephali. Mycological Progress 8: 237-244.