Psilocybe mescaleroensis

Psilocybe mescaleroensis Guzmán, Walstad, E. Gándara & Ram.-Guill.





DESCRIPTION 1

Macroscopic feat.:
  • Cap/Pileus: 20-60 mm, convex to subumbonate, brownish-yellow, hygrophanous, margin striate when moist, often with an orangish center, broad umbo and wavy margin. Has a separable gelatinous pellicle. Bruising bluish where damaged.
  • Gills/Lamellae: Cream color when young, chocolate brown in age, with adnate to adnexed attachment.
  • Stem/Stipe: 50-100 mm long, 5 do 20 mm thick, white, sometimes with light orange patches, fibrillose, equal to slightly enlarged near the top. Annulus fragile and membranous, white or dusted with dark brown spores. Stem base with rhizomorphic mycelium. Bluing where damaged.
  • Odor: And taste slightly farinaceous.

Microscopic feat.:
  • Basidio/Spores: Dark chocolate brown, subrhomboid to subovoid, thick-walled, 9-12 x 6-8 µm.
  • Pleurocistidia: Absent.
  • Cheilocystidia: 20-30 x 6 µm, fusiform or ventricose-rostrate, sometimes forked.

Habitat: Grows scattered to gregariously on dead grasses, in grasslands and savanna near ponderosa pine woodlands, often near gopher holes. Found in the summer and fall in the Sierra Blanca range of New Mexico, near Mescalero, New Mexico. So far it has only been collected in or near the type locality.

source - www.wikipedia.org



DESCRIPTION 2

Macroscopic feat.:
  • Cap/Pileus: (20-) 30-45 (-60) mm diam, convex to subumbonate, margin frequently wavy, pale brownish-yellow (4A3-4) to darker (4B5-7), frequently with the disc more orange (4A7-8), hygrophanous, changing to pale brownish (close to 9E2), translucent striate when wet, pellicle gelatinous, separable.
  • Gills/Lamellae: Adnate to adnexed, dirty whitish (4A2) to pale brownish-gray (4B4-5) or brownish-rose (6A3), finally dark chocolate (7E4-5), edges concolorous. Annulus close joined to the surface of the stipe, slightly membranaceous, white or getting the color of the spore print on the upper surface, ephemeral.
  • Stem/Stipe: (50-) 60-70 (-100) x 5-8 (-20) mm, cylindrical, equal or thicker toward the apex, flexuous, fibrillose, solid to hollow, whitish to irregularly orange (5A7) or orangish-pink (close to 7A3-4), base somewhat rhizomorphic, frequently strigose. All the basidioma bluing, except lamellae.
  • Context: Whitish to pale grayish (4A2-3), with slight farinaceous odor and taste.
  • Odor: And taste slightly farinaceous.

Microscopic feat.:
  • Basidio/Spores: (9-) 10-11 (-13) x 6-7 (-8) x 6-7 µm, subrhomboid or subovoid in face-view, subovoid in side-view, thick-walled, wall up to 1 µm thick, yellowish-brown, with a distinct and broad germ pore at distal pole and a short asymmetric appendage in the other. Spore print dark chocolate (7E-4).
  • Basidia: 35-39 x 7,5-9 µm, 4-spored, subclaviform, hyaline.
  • Pleurocistidia: Absent.
  • Cheilocystidia: (16-) 19-27 (-30) x 5-8 µm, hyaline, fusiform, ventricose-rostrate, regular or irregularly in shape, rarely irregularly branched.
  • Trama: hymenophoral regular, hyphae 4-5 µm wide, thin-walled, hyaline to yellowish.
  • Epicutis: an ixocutis up to 155 µm thick, hyphae 2-5 µm, wide, thin-walled, hyaline.
  • Subhymenium: Subcellular, hyaline to yellowish. Clamp connections present.

Habitat: Rarely solitary, frequently scattered to gregarious, also caespitose on rich soil or decaying grasses, in grasslands near to a Pinus ponderosa Douglas ex C. Lawson forest, commonly associated with the holes of gophers. Observed in summer and autumn. Known only from the type locality.

Studied material: UNITED STATES, New Mexico: Mescalero Range, Sierra Blanca, Lincoln Co., near town Mescalero, July 2004, Walstad s.n. (holotype XAL, isotype NY).

Discussion: This new species belongs to section Stuntzii Guzmán (Guzmán 1983), because of the subrhomboid, thick-walled basidiospores, presence of an annulus, and the bluing feature. It differs from Psilocybe stuntzii Guzmán & J. Ott (Guzmán 1983, Guzmán & Ott 1976) for its more robust basidiomata with subradicating and strigose stipe bases and cheilocystidia lacking elongate and flexuous necks. Psilocybe stuntzii has a (5-) 10-20 (-35) mm diam pileus and lageniform cheilocistidia with long necks (Guzmán & Ott 1976). Also Psilocybe stuntzii is known only from the Pacific regions of Canada and the USA. Although information gathered by Walstad and friends is somewhat confusing, it is probable that Psilocybe mescaleroensis had or still has a sacred use among Indians.

source - www.mycotaxon.com [99: 225-226]

Pictures at www.mushroomobserver.org

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© psilosophy 2001-2022