Chalazion helveticum
Coll. 2009.07.11
Coll. 2009.07.11
© J. Węcławski

Chalazion helveticum Dissing, Sydowia, 33: 29 (1980).

 

Basionym Chalazion helveticum Dissing, Sydowia, 33: 29 (1980).

Diagnosis Carposomata sparsa, superficialia, sessilia, omnino cinereoalbida, 200-300 µm lata, turbinata vel pulvinata, marginibus irregularibus non elevatis, ascis maturis prominentibus. Excipulum exterius 20-30 µm crassum, e seriebus subparallelis cellularum laxe intertextis, unum stratum vel pauca formantibus compositum. Cellulae parietibus tenuibus, cyanophilis, inferiores angulatae vel subglobulares, 10-15 µm diam., mediae tympaniformes 16-20 × 10-16 µm magnae, superiores elongatae, claviformes, 30-40 × 8-10 µm magnae. Excipulum medullare ex hyphis dense intertextis compositum, septatis, 2-4 µm crassis, tinctura cotton blue leviter affectis. Subhymenium non manifestum. Hymenium 120-135 µm altum. Asci 8 spori, non amyloides, clavati, stipitibus brevissimis, tenuibus, manifesto discretis, plus minus pleurorhynchis portati, 130-145 × 30-36 µm magni, operculis valde conspicuis ad 9.5 µm latis aperti, juvenes tincturam cotton blue avide intra suscipientes. Paraphyses colore nullo, apice plerumque curvae, ad 6-8 µm incrassatae, ad septa constrictae, parietibus cyanophilis. Sporae 23.8-26.0-27.1 × 12.5-13.8-15.8 µm magnae, in duas series vel irregulariter dispositae, achroae, ellipsoides vel inaequilaterae, verrucis valde cyanophilis, hemisphaericis vel irregularibus, 2-4 µm latis et altis, irregulariter sparsis, plerumque singulis, interdum inter se connexis ornatae, juvenes guttulas multas parvas exhibentes, maturae contentu praeter vacuola singula vel una conplura granulari, bullis debaryanis interdum praesentibus.
Holotypus die 29 Augusti anni 1979 cum Pulvinula constellatione consociatus ad terram sub Alno incana circiter 1170 m supra mare prope vicum Pradella tractus Schulsiani regionis helveticae Graubünden sub numero Sch. 79.23 ab E. Horak lectus, siccus in herbario Academiae Technicae Turicensis (ZT) depositus.

Type Sch. 79.23 (ZT) - holotypus

MycoBank 115932

 

Literature
Dissing H. 1980. Chalazion helveticum (Pezizales), a new species from Graubünden. Sydowia, 33: 29-32. 

 


Classification Chalazion, Ascodesmidaceae


CreatedDate 10.03.2018.

UpdatedDate 06.09.2018.

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[FR] Le Bois-d’Oingt
Bois de la Flachère
07/10/2012, leg. N. Van Vooren
NV 2012.10.03 
Source: Ascomycete.org
[FR] La Tour-de-Salvagny
Les Grands Bois
15/09/2003, leg. N. Van Vooren
NV 2003.09.30 
Source: Ascomycete.org
[FR] La Tour-de-Salvagny
Les Grands Bois
17/09/2005, leg. N. Van Vooren
NV 2005.09.07 
Source: Ascomycete.org
[FR] Cailloux-sous-Fontaine
 
15/01/2012, leg. L. Girard
NV 2012.01.03 
Source: Ascomycete.org
[FR] Bron
Parc de Parilly
05/12/2011, leg. M. Martin

Source: Ascomycete.org
[FR] Marennes
 
29/01/2001, leg. H. Orcel

Source: Ascomycete.org
[FR] Montagny
 
11/11/1998, leg. H. Orcel

Source: Ascomycete.org
[FR] Taluyers
 
19/10/1995, leg. N. Van Vooren

Source: Ascomycete.org
[FR] Fleurieux-sur-l’Arbresle
Pont Dorieu
22/10/1893, leg. P. Riel
PR 2284 (SLL)
Source: Ascomycete.org
[FR] Tassin-la-Demi-Lune
 
29/11/1906, leg. A. Albessard & M. Renard

Source: Ascomycete.org
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