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Leccinellum griseum; Birch Bolete ?   

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Leccinellum griseum
Leccinellum griseum
Birch Bolete ?
Photographer: Dr. Amadej Trnkoczy

ID: 0000 0000 0318 1480 (2018-03-08)

Copyright © 2018 Dr. Amadej Trnkoczy

 
INFORMATION PROVIDED WITH THE PHOTO
  • date of photo  Jul 6, 2010
  • latitude 46.33599   longitude 13.52555     View on Google Maps.
  • location   Bovec basin; next to the trail from station A of Kanin cable car to Plužna village; East Julian Alps (Posočje, Slovenia)
  • notes   Slo.: gabrov bed - ; Synonymy: Boletus griseus (Quél.) Sacc. & D. Sacc., Gyroporus griseus Quél., Leccinum griseum (Quél.) Singer., Leccinum carpini (R. Schulz) M.M. Moser ex D.A. Reid ?, Leccinellum pseudoscabrum (Kallenb.) Mikšík ? - Habitat: predominantly hard wood, broadleaf tree forest; moderately inclined mountain slope, southwest inclination; cretaceous clastic rock (flysh) bedrock, partly protected from direct rain by tree canopies; average precipitations ~ 3.000 mm/year, average temperature 8-10 deg C, elevation 460 m (1.500 feet), alpine phytogeographical region. Substratum: soil. Comments: Members of genus Leccinum/Leccinellum are relatively easy to recognize by distinct stem squamules. However, their taxonomy is a problem and species determination is often difficult. No definite and generally accepted answers are known. In 1995 the genus Leccinum comprised about 36 species distinguished by their macro-characters. Ten years later, in 2005, only 14 were still recognized based on DNA analysis (Kibby 2011). It has been proven that some traditional traits, which seemed once very important (for example flesh color changes when cut) have little significance. A new genus Leccinellum was established based on characteristics of hypha in hut cuticle. Yet not all mycologists agree with this approach. Such situation reflects in the fact that in Index Fungorum (IF) current name of this observation is probably Leccinellum griseum, while MycoBank still keeps with the current name Leccinum griseum. There are several ambiguities about species names and I am not sure I handled them correctly. Be that as it may this species doesn't look too appealing for photography, particularly not when old (as on these photos). But it is quite common in Slovenia and edible, and of very good taste (when younger). In this observation it was growing solitary. Spores smooth. Dimensions: (15,1) 15,3 - 16,7 (17,4) × (5,2) 5,3 - 5,9 (6,3) µm; Q = (2,4) 2,7 - 3,1 (3,2); N = 10; Me = 15,9 × 5,6 µm; Qe = 2,8. Olympus CH20, NEA 100x/1.25, magnification 1.000 x, oil; in water, fresh material. AmScope MA500 digital camera. Ref.: (1) Personal communication with Mr. Bojan Rot, www.gobenabovskem.si. (2) G. Kibby, British Boletes, Copyright Geoffrey Kibby (2011), p 56. (3) http://www.mycodb.fr/fiche.php?genre=Leccinellum&espece=griseum µm (accessed March 6. 2018) (4) G.J. Krieglsteiner (Hrsg.), Die Grosspilze Baden-Württembergs, Band 2, Ulmer (2000), p 275. (5) J. Breitenbach, F. Kraenzlin, Eds., Fungi of Switzerland, Vol.3. Verlag Mykologia (1991), p 70.
  • camera   Nikon D700 / Nikkor Micro 105mm/f2.8
  • contributor's ID #  Bot_433/2010_IMG1263
  • photo category: Fungi - fungi

  • MORE INFORMATION ABOUT THIS FUNGUS
  • common names   Birch Bolete ? (photographer)
  • View all photos in CalPhotos of Leccinellum griseum
  • Check Google Images for Leccinellum griseum


  • The photographer's identification Leccinellum griseum 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 © 2018 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.)


     

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