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80 mm wide, gray at first, taking on brownish tint, darkest over disc and over marginal striations, virgate, dull; context ??; margin tuberculate, striate (0.4R - 0.45R), nonappendicuate; universal veil absent.
stipe
49 × 5 - 6 mm, pallid, ??; context ??; exannulate; universal veil as saccate volva, with upper third of limb becoming gray, with limbus internus rather long and attached near point of limb's attachment to stipe.
odor/taste
not recorded.
macrochemical tests
Spot test for laccase (syringaldazine) - negative throughout (older) basidiocarp. Test voucher: Tulloss 8-31-94-D.
ecology
Solitary. At 2800 m elev. In dark loam of mixed forest dominated by Quercus spp. and including Pinus patula, Abies religiosa, Baccharis conferta, and Arbutus xalapensis.
material examined
MÉXICO: TLAXCALA—Mpio.
Tlaxco - km 4-5 camino El Rosario a El Rodeo,
Cerro El Peñón [2800 m], 31.viii.1994 A. Estrada
Torres & L. Varela Fregoso s.n. [Tulloss 8-31-94-D]
(RET 135-8; TLXM); Parq. Nac. La Malintzi volcano
above IMSS Malintzi just below tree line on peak,
19.viii.1998 Paula J. Brooks s.n. [Tulloss 8-19-98-C]
(RET 292-8, nrITS & nrLSU seq'd.).
citations
—R. E. Tulloss
editors
RET
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