Cortinarius xenosma Soop, Bull. Soc.
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publication ID |
https://doi.org/ 10.11646/phytotaxa.438.4.1 |
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DOI |
https://doi.org/10.5281/zenodo.13872767 |
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persistent identifier |
https://treatment.plazi.org/id/03CA87C2-FFAD-A243-BC85-FE10654EFA60 |
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treatment provided by |
Felipe |
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scientific name |
Cortinarius xenosma Soop, Bull. Soc. |
| status |
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Cortinarius xenosma Soop, Bull. Soc. View in CoL mycol. Fr. 118(3): 176 (2003) [2002]
( Figures 1A, 1B, 1D View FIGURE 1 , 2D View FIGURE 2 )
MycoBank MB405951.
Holotype:— New Zealand. Taupo , Te Iringa Track, 29 April 2001, in Fuscospora fusca forest, K. Soop CO1182 ( PDD73149 About PDD ), GenBank JX 000358 ( ITS), JX000389 ( LSU).
Summary description:— Pileus 30–70 mm diam., dry, non-hygrophanous, dark grey-brown to dark copper brown, fibrillose, persistently covered by thick, ochre to greyish yellow fibres and patches, margin garnered by thick, membranous, greyish ochre tufts. Lamellae pale grey-brown to pale grey when young, close to crowded. Stipe cylindrical, sometimes with a slightly bulbous base, greyish yellow with a reddish tone and reddish fibrils (universal veil remnants), with greyish yellow rhizoids at base. Universal veil greyish ochre, reddening, copious; partial veil white. Context greyish white to pale greyish yellow, reddening; odour faint, like raw potato; taste insignificant.
Macrochemical reactions:—NaOH slowly yellowish on the universal veil remnants of the stipe, not significant in any other part, guaiac weakly blue-green, phenol weakly red; formalin nil; fluorescence in UV light absent.
Basidiospores:—ellipsoid, 7–9 × 4.5–5.2 µm, weakly verrucose ( Fig. 2D View FIGURE 2 ). Cystidia none. Universal veil hyphae 6–10 µm wide, hyaline with a brownish granular pigment.
Habitat:—Gregarious in Nothofagaceae forest, fairly common.
Other collections examined: — New Zealand. Taupo, Kiko Road Track, 02 May 2001, PDD117352 About PDD , S F44460 , K. Soop CO1201 ; Buller, Reefton, Perseverance River , 03 May 2001, PDD117353 About PDD , P. Marstad PM31-01 , K. Soop CO1219 ; Otago Lakes, Lake Gunn Track , 05 May 2001 ; Tuatapere, Lake Hauroko , 26 April 2003, K. Soop CO1325 ; Southland, Kepler Track, 24 April 2006, PDD117354 About PDD , K. Soop CO1625 ; idem, 28 April 2009, PDD97510 About PDD , S-F140300, K. Soop CO1882 ; Otago Lakes, Te Anau Downs, 23 April 2011, PDD101834 About PDD , K. Soop CO2005 ; idem, 30 April 2006, PDD88274 About PDD , K. Soop CO1656 ; Canterbury, Hawdon Valley , Cass, 19 April 2011, PDD101822 About PDD , K. Soop CO1992 ; Nelson, 15 May 2014, PDD105786 About PDD , J. A. Cooper JAC13535 About JAC .
Comments:— Cortinarius xenosma is a fairly robust fungus with a sombre pileus, almost covered by greyish ochre remains of the universal veil when young. The reddening context, universal veil, and stipe, together with the pale lamellae are also useful characters.
| K |
Royal Botanic Gardens |
| LSU |
Louisiana State University - Herbarium |
| S |
Department of Botany, Swedish Museum of Natural History |
| P |
Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants |
| J |
University of the Witwatersrand |
| A |
Harvard University - Arnold Arboretum |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Cortinarius xenosma Soop, Bull. Soc.
| Dima, Bálint & Soop, Karl 2020 |
Cortinarius xenosma
| Soop, Bull. Soc. 2003: 176 |