Observation 87643: Steccherinum bourdotii Saliba & A. David
When: 2012-01-05
(46.34676° 13.56571° )
Herbarium specimen reported

Notes: Code: Bot_587/2012_DSC2154

Habitat: At the side of a group of Pinus nigra trees, south oriented mountain slope, fairly sunny and relatively warm place, calcareous ground, partly protected from direct rain by tree canopies, average precipitations ~ 3.000 mm/year, average temperature 8-10 deg C, elevation 600 m (1.950 feet), alpine phytogeographical region.

Substratum: Dead stump of a cut down deciduous tree (possibly Ostrya carpinifolia) mostly still in bark and partly covered with mosses, also heavily infected with Trametes versicolor (as effuse-reflexed to pileate form), however fungus spread also to pieces of fallen off bark, herbaceous plant roots and old leaf petioles (as a resupinated form).

Place: Bovec basin, at the foot of Mt. Čukla, Ravni Laz place, above the dirt road to Plajerjeva skala, East Julian Alps, Posočje, Slovenia EC

Comments: Subglobose to ovate and significantly larger spores (see spore measurement chart), smaller diameter pseudocystidia, conical and longer than 1 mm aculei (see Ref.:(2)) distinguish this observation from more frequent Steccherinum ochraceum well. All forms from pure resupinated to distinctly pileate were present. Caps of pileate form zonate, up to 14 mm wide and 12 mm off the substrate, often confluent and up to 2 mm thick, context thin; upper side beige-pink with some brown strips and green (algae?), with thin whitish margin. Aculei up to 1.5 mm long, mostly conical, ocher-pink (oac764); hymenium in resupinated form with white edge. SP whitish.

Nikon D700 / Nikkor Micro 105mm/f2.8 and Canon G11, 6.1-30mm/f2.8-4.5

Species Lists

Images

199177
199178
199179
199180
199181
199182
Measured spores and a comparison of spore dimensions of S. bourdotii and S. ochraceus.
199183
Pseudocystidia 5-7 micr. diameter.
199184
199185
199186
199187
199188
199189
Resupinated form on a piece of bark and other debris.
199190
Show with Trametes versicolor on the same stump.

Proposed Names

85% (1)
Eye3 Eyes3
Recognized by sight
Used references: S.bourdotii
(1) G.J.Krieglsteiner (Hrsg.), Die Grosspilze Bade-Württembergs, Band 1, Ulmer (2000), p 327.
(2) A.Bernicchia, S.P.Gorjon, Cortitiaceae s.i., Fungi Europaei Vol.12., Edizioni Candusso (2010), pp 624.
(3) http://aphyllopower.blogspot.com/...
S.ochraceum
(1) G.J.Krieglsteiner (Hrsg.), Die Grosspilze Bade-Württembergs, Band 1, Ulmer (2000), p 327.
(2) A.Bernicchia, S.P.Gorjon, Cortitiaceae s.i., Fungi Europaei Vol.12., Edizioni Candusso (2010), pp628.
(3) J.Breitenbach, F.Kraenzlin, Eds., Fungi of Switzerland, Vol.1. Verlag Mykologia (1984).
Based on microscopic features: Spores smooth, subglobose to ovate, dimensions: 4.4 (SD = 0.3) x 3.7 (SD = 0.2) micr., Q = 1.21 (SD = 0.07), n = 30. Motic B2-211A, magnification 1.000 x, oil, in water. Pseudocystidia of spines 5-7 micr. diameter. Congo red.
Based on chemical features: Smell indistinctive on soil and rottenness.

Please login to propose your own names and vote on existing names.

Eye3 = Observer’s choice
Eyes3 = Current consensus

Comments

Add Comment
No one has commented yet.

Created: 2012-02-11 15:56:02 CST (-0500)
Last modified: 2012-02-11 15:56:05 CST (-0500)
Viewed: 524 times, last viewed: 2017-01-15 17:38:00 CST (-0500)
Show Log