Notes:
Bot_1024/2016_DSC6239

Habitat: Mixed forest, Fagus sylvatica and Picea abies dominant trees; moderately inclined mountain slope, southeast aspect; relatively warm and dry place; colluvial, calcareous, skeletal ground; in shade; average precipitations ~ 3.000 mm/year, average temperature 7-9 deg C, elevation 600 m (2.000 feet), alpine phytogeographical region.

Substratum: completely rotten stump of Picea abies.

Place: Lower Trenta valley, between villages Soča and Trenta, right bank of river Soča, near the trail from Trenta 2b cottage to abandoned farm house Strgulc, Soča 47, East Julian Alps, Posočje, Slovenia EC.

Comments: Pluteus pouzarianus belongs to Pluteus cervinus agg. Variability of size, color, etc. of members of this group is so big that several authors claim they can hardly be determined in the field. Microscopy is needed. Pluteus pouzarianus is distinguished from other options, particularly from common Pluteus cervinus s.s., by: about 40% of hypha in pileipellis having clamps and it grows exclusively on conifer wood. Usually it has (in average) grayer cap and it is of somewhat smaller size. It seems, traits of the find fit well to literature.

There were two pilei present in this find. Pilei diameter 4 and 4.5 cm, surface velvety-waxy for palpation, cuticle peels off easily; stipe 4.5 and 5 cm tall, diameter in the middle 6 and 6.5 mm, ‘bulbous’; SP abundant, pinkish-ocher, oac651.

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

Species Lists

Images

Edge of gills, cheilocystidia.
Crashed edge of gills, cheilocystidia.
Simple and clamped septa in pileipellis.
A cut through pileipellis.
Hypha ends in pileipellis.
Pleurocystidia.
Spores.
Spore statistics and comparison with data from literature.

Proposed Names

92% (2)
Recognized by sight: Can not be recognized by sight; about 40% clamps in pileipellis hypha.
Used references: (1) R.Lliffe, Getting to Grips with Pluteus, Field mycology, Vol.11 (3) 2010, p78; available at: http://www.britmycolsoc.org.uk/....
(2) J. Breitenbach, F. Kraenzlin, Eds., Fungi of Switzerland, Vol.4. Verlag Mykologia (1995), p 128.
(3) http://www.photomazza.com/?Pluteus-cervinus (P.cervinus)
(4) http://www.mycodb.fr/...
(5) http://www.funghiitaliani.it/?showtopic=71917
(6) http://www.mykoweb.com/CAF/species/Pluteus_pouzarianus.html
(7) http://www.ambmuggia.it/... ceilocystide s špičko na koncu
(8) C. Bas et al. Flora Agaricina Neerlandica, Vol.2., CRC Press (1990), p 35; available at: https://books.google.si/...
Based on microscopic features: Spores smooth. Dimensions: 6 [6,8 ; 7,1] 7,9 × 4,6 [5,1 ; 5,3] 5,7 microns; Q = 1,2 [1,3 ; 1,4] 1,5; N = 33; C = 95%; Me = 7 × 5,2 microns; Qe = 1,3. Pleurocystidia numerous, horned. Dimensions: 41.2 [53 ; 58.6] 70.3 × 11.9 [15 ; 16.5] 19.6 microns; Q = 2.6 [3.4 ; 3.8] 4.5; N = 27; C = 95%; Me = 55.8 × 15.7 microns; Qe = 3.6. Olympus CH20, NEA 100x/1.25, magnification 1.000 x, oil (spores); NEA 40x/0.65, magnification 400x (cheilocystidia, pleurocystidia, pileipellis hypha), NEA 10x/0.25, magnification 100x (pileipellis); fresh material, in water. AmScope MA500 digital camera.
Based on chemical features: Smell faint, lightly on radish; taste faint, slightly mushroomy and on radish.

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= Observer’s choice
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Created: 2016-11-05 15:13:06 CDT (-0500)
Last modified: 2016-11-22 02:14:40 CST (-0600)
Viewed: 67 times, last viewed: 2020-09-14 11:57:52 CDT (-0500)
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