|
|
click photo for larger file
Megacollybia platyphylla
Platterful Mushroom
|
Photographer: Dr. Amadej Trnkoczy
ID: 0000 0000 0817 0126 (2017-08-02)Copyright © 2017 Dr. Amadej Trnkoczy
|
|
INFORMATION PROVIDED WITH THE PHOTO
|
date of photo Jul 26, 2017
latitude 46.35959 longitude 13.70122
View on Google Maps.
location
Lower Trenta valley, between villages Soča and Trenta, right bank of river Soča; near the trail from Trenta 2b to Strgulc farmhouse, Soča 48; East Julian Alps (Posočje, Slovenia)notes Slo.: širokolistna velekorenovka - syn.: Collybia platyphylla (Pers.) P. Kumm., Clitocybula platyphylla (Pers.) E. Ludw., Oudemansiella platyphylla (Pers.) Moser, Tricholomopsis platyphya and many others - Habitat: mixed wood, Fagus sylvatica and Picea abies dominant trees with some Ostrya carpinifolia and Fraxinus ornus; slightly inclined mountain slope, SE aspect; old colluvial, calcareous ground, in shade, dry and relatively warm place; partly protected from direct rain by tree canopies; average precipitations ~ 3.000 mm/year, average temperature 7-9 deg C, elevation 600 m (1.950), alpine phytogeographical region. Substratum: heavily rotten, moss covered stump of Fagus sylvatica. Comments: When I noticed this fungus I thought it was a kind of Pluteus (actually Pluteus cervinus (Schaeff.) P. Kumm. looks very similar). However, neither its spore print nor gills showed even a trace of pinkish color. So, it must be almost for sure Megacollybia platyphylla. Its streaked-looking gray-brown cap is typical. Genus Megacollybia was considered monophyletic (that is containing only one specie - Megacollybia platyphylla) not so far ago. Recent DNA sequencing in North America (Ref.3) showed that it can be separated to several distinct species (how many of them scientists do not agree, up to nine worldwide). One of them Megacollybia platyphylla was limited to Europe. Unfortunately newly recognized species in North America cannot practically be separated by macro-morphological traits (particularly not if geographic location is dismissed as a 'character'). They are all variable and all look alike. Even microscopy doesn't help. To determine them in the field one would need 'pocket DNA sequencer' (which doesn't exist). So it is: DNA-defined species do not always show observable differences in physical features. Megacollybia platyphylla is a common mushroom. There are conflicting reports about edibility of it. Some consider it conditionally edible, some weakly poisonous. Description of this find: Growing solitary; heavily eaten by snails; pileus diameter 13 cm, radially streaked, strakes peel off easily; trama thin, gills broad, beige, fragile; stipe 8 cm long, 23 mm in diameter at the base and 19 mm on top, firm, slightly hollow at the center, fibrous, firmly attached to the rotten wood by mycelial strands; smell slightly on sour bread, taste mild, indistinctive; SP faint, beige, oac814. Spores smooth. Dimensions: 7.3 [8 ; 8.3] 9 x 5.9 [6.5 ; 6.8] 7.4 microns; Q = 1.1 [1.2] 1.4; N = 30; C = 95%; Me = 8.1 x 6.7 microns; Qe = 1.2. Olympus CH20, NEA 100x/1.25, magnification 1.000 x, oil; in water, fresh material. AmScope MA500 digital camera. Herbarium: Mycotheca and lichen herbarium (LJU-Li) of Slovenian Forestry Institute, Večna pot 2, Ljubljana, Index Herbariorum LJF Ref.: (1) R. Phillips, Mushrooms, Macmillan (2006), p 96. (2) G.J. Krieglsteiner (Hrsg.), Die Grosspilze Baden-Württembergs, Band 3., Ulmer (2001), p 360. (3) http://www.mushroomexpert.com/megacollybia.html stanje megacolibija (4) J. Breitenbach, F. Kraenzlin, Eds., Fungi of Switzerland, Vol.3. Verlag Mykologia (1991), p 246. (5) L. Hagar, Ottova Encyklopedia Húb, Ottova Nakladatelstvi, Praha (2015) (in Slovakian), p 673. (6) R. Lueder, Grundkurs Pilzbestimmung, Quelle & Meyer (2008), p 223. (7) S. Buczacki, Collins Fungi Guide, Collins (2012), p 208.camera Nikon D700 / Nikkor Micro 105mm/f2.8
contributor's ID # Bot_1077/2017_DSC8488 photo category: Fungi - fungi
|
MORE INFORMATION ABOUT THIS FUNGUS
|
| common names
Platterful Mushroom, Whitelaced Shank (photographer)
View all photos in CalPhotos of Megacollybia platyphylla Check Google Images for Megacollybia platyphylla |
|
The photographer's identification Megacollybia platyphylla has not been reviewed. Click here to review or comment on the identification. |
|
Using this photo The thumbnail photo (128x192 pixels) on this page may be freely used for personal or academic purposes without prior permission under the Fair Use provisions of US copyright law as long as the photo is clearly credited with © 2017 Dr. Amadej Trnkoczy.
For other uses, or if you have questions, contact Dr. Amadej Trnkoczy amadej.trnkoczy[AT]siol.net. (Replace the [AT] with the @ symbol before sending an email.) |
|
|