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General information

 Substratum:Terricolous 
 
Continent::
Africa no
North America no
S. and C. America no
 
Asia no
Australia no
Europe yes
 
 Authority:Romagnesi 
 Synonyms and close species:S: R. laurocerasi Melzer ss. Romagnesi
C: R. laurocerasi and others var.
 
 Information given by author(s):Ingratae foetentinae
Type : 52-173
 
 Host(s):Deciduous, Coniferous 
 Taxon name_Mycobank:
 
 Bibliography:
 

Macro-characters

 
Stipe
 Width of stipe:14 (28) 
 Veil:Absent 
 Form of base of stipe:Not radicate 
 Form of stipe:Inflat. at base or top or both 
 Context of stipe:Solid/partly hol./compl. hol. 
 
Main color(s) of stipe::
grey/black no
brown yes
white no
yellow/cream yes
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 
 Length of stipe:60 - 150 
 
Pileus
 Type of pileipellis:Smooth to cracked or both 
 Striations of pileus:Weak (less than mid-radius) 
 Viscosity of pileus:Variable 
 Form of center of pileus:Concave to plane or both 
 Separability of pileus:Nil to medium or both 
 
Thickness of flesh of pileus
 Thickness of flesh of pileus:Thick 
 Thickness of flesh of pileus:20 
 
Main color(s) of pileus::
grey/black no
brown yes
white no
yellow/cream yes
blue no
 
orange no
red/pink no
purple/vinaceous yes
green no
   
 
 Diameter of pileus:60 - 130 
 
Lamellae
 Spacing of lamellae:Variable 
 Number of lamellulae:Variable or equal number 
 Furcation of lamellae:Everywhere (min 3 to 4/carp.) 
 Color of ridges of lamellae:Not concolorous with faces 
 Attachment of lamellae:Adnate 
 Type of lamellar ridges:Entire/smooth 
 
Main color(s) of lamellae::
grey/black no
brown yes
white no
yellow/cream yes
blue no
 
orange no
red/pink no
purple/vinaceous variable
green no
   
 
 Height of lamellae:4 - 10 
 Odor:Strong and unpleasant/pleasant 
 Flavor of flesh:Sweet to bitter or both 
 
Color changes
 Fruit body turns green/blue with age:Not turning green/blue 
 Fruit body turns red if touched/cut:Not turning red 
 Fruit body turns yellow-brown with age:Entire fruit body 
 Fruit body turns br. yellow if touched:Not turning bright yellow 
 Fruit body turns black with age/touched:Not blackening 
 Fruit body turns grey with age:Not turning grey 
 
Chemical reactions
 Ga´ac test on flesh:Blue/green 
 
Latex
 Latex:Absent 
 
Color(s) of fresh latex::
grey/black no
brown no
white no
yellow/cream no
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 
 
Color(s) of dry latex::
grey/black no
brown no
white no
yellow/cream no
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 
 
Main color(s) of Exsiccata::
grey/black no
brown no
white no
yellow/cream no
blue no
 
orange no
red/pink no
purple/vinaceous no
green no
   
 

Micro-characters

 
Spores
 Length of spores:7.5 - 10 
 Width of spores:7 - 9.2 
 Amyloid plage:Variable/partial/weak 
 Appearance of spores verrucae:Tips acute/sharp/pointed (/) 
 Ornamentations in surface view:Irregular 
 Connection(s) between verrucae:Crest like/joined fine lines 
 Overall appearance of spores:Partly reticulate 
 Height of verrucae:0.5 < x < 2 µm 
 Color of spore deposit:5 
 Pictures from Romagnesi, 1967_Link:
  • 3\205a1.jpg
  • 3\205a2.jpg
 
 
Basidia
 Length of basidia:60 - 65 
 Width of basidia:10 - 11.5 
 Number of sterigmata per basidium:Four 
 
Pleurocystidia
 Length of pleurocystidia:82 - 130 
 Width of pleurocystidia:(8.7) 10.7 - 14 
 Length of pleurocystidial emergence:0 
 Thickness of wall of pleurocystidia:Thin (all structures < 2 µm) 
 Shape of apices of pleurocystidia:Mainly capit./append./acerate 
 Sulfo-vanillin test on pleurocystidia:Blue/black/red/pur./or./brown 
 
Pleurocystidia abundance::
absent no
very dispersed 0-350/mm² no
dispersed 350-700/mm² no
 
rather abund 700-1500/mm² variable
abundant 1500-3000/mm² yes
very abundant >3000/mm² variable
 
 
Marginal cells
 Length of marginal cells:0 
 Width of marginal cells:0 
 
Subhymenium
 Differentiation of supra and subpellis:Variable/doubtful 
 Gelification of subpellis:Not gelified (no gel. matrix) 
 
Pileocystidia
 Width of pileocystidia:5 - 8 
 Location of pileocystidia:Suprapellis 
 Shape of apices of pileocystidia:Mainly capit./append./acerate 
 
Hyphae of pileus
 Diameter of subpellis hyphae:3.5 - 6.7 (10) 
 Diameter of ends of pileipellis hyphae:2.5 - 5.2 
 Diameter of primordial hyphae:0 
 Wall of hyphae of pileus:Thin (<1 µm) 
 Filamentous hyphae of pileus:Absent