(2008”N4ŒŽ28“úXV)



Basidiomata of Mycena clariviolacea. Bars A 6 mm; B 3 mm; C, D 50 mm.


Mycena clariviolacea. A Basidiospores. B Basidium and basidioles. 
  C Cheilocystidia. D Elements of the pileipellis. E Caulocystidia. Bars 10 ƒÊm.


ƒVƒRƒ“(Ž‡®jƒTƒNƒ‰ƒ^ƒP Mycena clariviolacea Har. Takah., Mycoscience (2007) 48: 342-
357.
  “÷Šá“I“Á’¥: ŽP‚ÍŒa 10-25 mm, Å‰’Þ‚èàŒ`, ‚Ì‚¿‚â‚âé\“ªŒ`‚É•½ŠJ‚µ, Žž‚É’†‰›•”‚ª‚â
‚â‚Ö‚»ó‚ɉš‚Ý, •úŽËó‚̍aü‚ð•\‚µ, ‚â‚â‹z…«, ”¼“§–¾‚̏ðü‚ð•\‚µ, Š£«, ‰‚ß”’F•²
ó, ‚Ì‚¿•½ŠŠ‚É‚È‚è, ’†‰›•”‚͈·F (Ž‡®F, RGB’l #411445), Žü‰•”‚ÉŒü‚©‚Á‚Ä‚â‚â‘Þ
F‚·‚é.@“÷‚ÍŽP‚Ì’†‰›•”‚É‚¨‚¢‚ÄŒú‚³ 0.5 mm ˆÈ‰º, ”’F, “Á•Ê‚È–¡‚âL‚¢‚Í‚È‚¢. •¿‚Í 30-
40~1-3 mm, ‰~’ŒŒ`, ’†S¶, ‚₹Œ^, Žž‚É‚â‚â•Îˆ³‚³‚ê, ’†‹ó, Š£«, ‘S‘Ì‚É”’F•²ó, ŽP‚æ
‚è‚â‚â’WF, ª–{‚Í”’F‚̍„–яó‹ÛŽ…‘Ì‚É”í‚í‚ê‚é. ƒqƒ_‚Í’¼«‚µ, ‘a (•¿‚É“ž’B‚·‚éƒqƒ_‚Í 
(15-19), • 2.5 mmˆÈ‰º, ŽP‚æ‚è‚â‚â’WF, ‰•”‚Í‘¤–Ê‚æ‚è’WF‚Ü‚½‚Í—Þ”’F. 
  Œ°”÷‹¾“I“Á’¥: ’SŽq–EŽq‚Í 8-9~5-6ƒÊm, L‘ȉ~Œ`, •\–Ê‚Í•½’R, –³F, ƒAƒ~ƒƒCƒh, ”–•Ç. 
’SŽqŠí‚Í 40-60~10-12 ƒÊm, ‚±‚ñ–_Œ`, 4–EŽq«. ‰ƒVƒXƒ`ƒWƒA‚Í 30-45~10-17ƒÊm, ŒQ¶
‚µ, ‚±‚ñ–_Œ`, ’ʏ풸•”‚ɐ”ŒÂ‚Ìᎏ󕪊ò•¨‚ð‹ï‚¦, –³F, ”–•Ç. ‘¤ƒVƒXƒ`ƒWƒA‚ðŒ‡‚­. ŽqŽÀ‘w
‘ïŽÀŽ¿‚Ì‹ÛŽ…‚͍זE“à‚ÉŠŒF‚̐F‘f‚ðŽ‚¿, ‹UƒAƒ~ƒƒCƒh. ŽP‚̏ã•\”ç‘w‚Ì‹ÛŽ…‚Í™³™´«‚Å, 
• 2-6ƒÊm, •½s‚É”z—ñ‚µ, ‰~’ŒŒ`, •½’R‚Ü‚½‚Íánó•ªŠò•¨‚ªŽUÝ‚µ, –³F‚Ü‚½‚Í’WŠŒF, ‹UƒA
ƒ~ƒƒCƒh, ”–•Ç. ã•\”牺‘w‚Ì‹ÛŽ…‚Í–³F‚Ü‚½‚ÍŠŒF, ŽÀŽ¿‚Ì‘å•”•ª‚Í‹U_‘gDó 
[pseudoparenchymatous: ’˜‚µ‚­”ì‘債, •¡”‚ÌŠu•Ç‚ðŽ‚Á‚½’ZŒ`‚Ì‹ÛŽ…×–E] ‚Å, ‹ÛŽ…‚Í•½
—ñ ‚µC‹UƒAƒ~ƒƒCƒh. •¿•\”ç‚Ì‹ÛŽ…‚Í•½’R‚Ü‚½‚Íánó•ªŠò•¨‚ªŽUÝ‚µ, ŠŒF, ‹UƒAƒ~ƒƒCƒh; •¿
ƒVƒXƒ`ƒWƒA‚Í 45-88~5-8 ƒÊm, ‰~’ŒŒ`, •¡”‚Ìᎏó`’ZŽwó•ªŠò•¨‚É”í‚í‚ê, –³F‚Ü‚½‚Í
ŠŒF, ”–•Ç. ŽP‚Æ•¿‚Ì•\”ç‘gD, ‹y‚ÑŽqŽÀ‘w‘ïŽÀŽ¿‚Ì‹ÛŽ…‚ɃNƒ‰ƒ“ƒv‚ª‘¶Ý‚·‚é.
  ‹ŸŽŽ•W–{: KPM-NC0008701 (holotype), Maruyama, Iriuda, Odawara-shi, Kanagawa pref., 4 
Jun. 2000, coll. H.Takahashi; the same place, 27 Jun. 2001, coll. H. Takahashi; the same 
place, 17 Sept. 2001, coll. H.Takahashi. 
  ƒRƒƒ“ƒg: ‘S‘̂Ɉ·F‚ð‘Ñ‚Ñ, ƒ‚ƒŠƒmƒJƒŒƒoƒ^ƒPŒ^‚ÉŽ—‚½‚â‚â“÷Œú‚ÈŽqŽÀ‘Ì‚ðŒ`¬‚µ, ’ʏí
’¸•”‚É•¡”‚Ìᎏ󕪊ò•¨‚ð‹ï‚¦‚½‚±‚ñ–_Œ`‚̉ƒVƒXƒ`ƒWƒA‚ð—L‚µ, ‘¤ƒVƒXƒ`ƒWƒA‚ðŒ‡‚«, ”ŒÂ
‚Ìᎏó`’ZŽwó•ªŠò•¨‚É”í‚í‚ꂽ‰~’ŒŒ`‚Ì•¿ƒVƒXƒ`ƒWƒA‚ª‘¶Ý‚·‚é. ˜ZŒŽ`‹ãŒŽ, _“ސì
Œ§¬“cŒ´Žs“ü¶“c‚̏ƗtŽ÷—Ñ“à‚Ì—ŽŽ}ã‚É”­¶. •W–{‚͐_“ސ쌧—§¶–½‚̐¯E’n‹…”Ž•¨
ŠÙ (KPM) ‚Ì•W–{ŒÉ‚É“o˜^, Žû‘ ‚³‚ê‚Ä‚¢‚é.
  ƒAƒ~ƒƒCƒh‚Ì’SŽq–EŽq, ”ŒÂ‚Ì’¸¶•ªŠò•¨‚É”í‚í‚ꂽ‰ƒVƒXƒ`ƒWƒA, ‚»‚µ‚Ä‘½•ªŽ}‹ÛŽ…Œ^
‚Ì•¿ƒVƒXƒ`ƒWƒA‚ð—L‚·‚鐫Ž¿‚ÉŠî‚«, –{Ží‚Í Maas‚Ì•ª—ÞŠT”O (Maas 1980, 1988a) ‚É‚æ‚é 
ƒAƒNƒjƒIƒCƒ^ƒPß (section Fragilipedes) ‚É‘®‚·‚é‚ƍl‚¦‚ç‚ê‚é. 
     Cerasinae ß‚É‘®‚·‚éƒuƒ‰ƒWƒ‹ŽY Mycena cerasina Maas G. & de Meijer (Maas and 
Meijer 1997) ‚Í–{Ží‚ÉŽ—‚½«Ž¿‚ðŽ¦‚·‚ª, ŽP‚Æ•¿‚ÍŠDŽ‡F‚ð‘Ñ‚Ñ, ‰ƒVƒXƒ`ƒWƒA‚Í•½’R‚Å•ª
Šò•¨‚ðŒ‡‚­. ƒAƒJƒoƒVƒƒWßƒTƒNƒ‰ƒ^ƒPˆŸß (sect. Calodontes, subsect. Purae) ‚É‘®‚·‚鉢B
ŽY Mycena diosma Krieglst. & Schwobel (Courtecuisse and Duhem 1994; Moser and Julich 
1999; Maas 1989; Robich 2003)‚àŽqŽÀ‘̂̐F‚Æ—ÞŒ^‚É‚¨‚¢‚Ä–{Ží‚É—ÞŽ—‚·‚邪, –aŽŒ`‚̉
ƒVƒXƒ`ƒWƒA‚Æ‘¤ƒVƒXƒ`ƒWƒA‚ð—L‚µ, ŽP‚Æ•¿‚Ì•\”ç‘gD‚Í‘½•ªŽ}‹ÛŽ…‚ðŒ‡‚­.


Mycena clariviolacea Har. Takah., Mycoscience (2007) 48: 342-357.
  Etymology: From Latin, clari- (clear-) { violacea (violaceous). 
  Pileus 10-25 mm in diam, at first conico-convex to campanulate, then plano-convex in 
age, sometimes shallowly umbilicate, radially sulcate-striate almost to the disk, 
subhygrophanous, dry, minutely white pruinose when young, soon becoming glabrous, at first 
dark violet (15F6-7 to 16F6-7) overall, fading to greyish violet (15E5-6 to 16E5-6) from the 
margin with age. Flesh up to 0.5 mm, whitish; odor and taste not distinctive. Stipe 30-40~1-
3 mm, cylindrical, central, slender, terete or compressed, hollow, dry, minutely white pruinose 
over the entire length, entirely greyish violet (15E5-6 to 16E5-6) to dark violet (15F6-7 to 
16F6-7); base covered with white, strigose mycelial tomentum. Lamellae adnate, distant (15-
19 reach the stipe), up to 2.5 mm broad, thin, paler concolorous with the pileus; edges 
whitish or paler. 
  Basidiospores (n = 65 spores of 7 basidiocarps) 8-9~5-6 ƒÊm, Q (length/breadth) = 1.5-
1.6, broadly ellipsoid, smooth, colorless, amyloid, thin-walled. Basidia 40-60~10-12 ƒÊm, 
clavate, four-spored. Basidioles clavate. Cheilocystidia 30-45~10-17 ƒÊm, abundant, 
forming a sterile lamella edge, clavate, apically with one or more, knob-like short 
excrescences, colorless, thin-walled. Pleurocystidia absent. Hymenophoral trama regular; 
element hyphae 12-21 ƒÊm wide, cylindrical, often somewhat inflated, thin-walled, smooth, 
with cytoplasmic brownish pigment, dextrinoid. Pileipellis a cutis of parallel, repent hyphae 2-
7 ƒÊm wide, cylindrical, smooth or covered with scattered, warty or finger-like diverticulae, 
walls thin, colorless or pale brownish, dextrinoid; underlying hyphae parallel, cylindrical, 
hyaline or brownish, dextrinoid, with short and inflated cells up to 48 ƒÊm wide. Stipitipellis a 
cutis of parallel, repent hyphae 3-8 ƒÊm wide, cylindrical, smooth or covered with scattered, 
warty or finger-like diverticulae, brownish, dextrinoid, thin-walled; caulocystidia 45-88~5-8 
ƒÊm, cylindrical, diverticulate, colorless or brownish, thin-walled. Stipe trama composed of 
longitudinally running, cylindrical hyphae 8-25 ƒÊm wide, smooth, colorless, dextrinoid. Clamp 
connections present in the pileipellis, the stipitipellis, the hymenophoral trama, and at the 
basal septa of basidia. 
  Known distribution: Japan (Kanagawa).
@ Habitat: Solitary or scattered, on dead fallen twigs in Quercus-Castanopsis forests, June 
to September. 
  Specimens examined: KPM-NC0008701 (holotype), Maruyama, Iriuda, Odawara-shi, 
Kanagawa pref., 4 Jun. 2000, coll. H.Takahashi; the same place, 27 Jun. 2001, coll. H. 
Takahashi; the same place, 17 Sept. 2001, coll. H.Takahashi. 
  Japanese name: Shikon-sakuratake.
@ Notes: Distinctive features of this species are found in its medium-sized, in part collybioid, 
dark violet basidiomata, the amyloid basidiospores, the clavate cheilocystidia covered with 
one or more, knob-like, apical excrescences, the absence of pleurocystidia, and the 
cylindrical, diverticulate caulocystidia.
@ Its amyloid basidiospores, the cheilocystidia covered with one or more, knob-like, apical 
excrescences, the diverticulate elements in the cortical layer of pileus and stipe, and the 
diverticulate caulocystidia suggest placement of this taxon in the section Fragilipedes (Fr.) 
Quel., as defined by Maas Geesteranus (Maas Geesteranus 1980, 1988a). 
    Mycena clariviolacea appears to be closely related to M. cerasina Maas Geest. & de 
Meijer, described from Brazil (Maas Geesteranus and Meijer 1997), and European M. diosma 
Krieglst. & Schwobel (Maas Geesteranus 1989; Courtecuisse and Duhem 1994; Moser and 
Julich 1999; Robich 2003). Mycena cerasina, which belongs in the section Cerasinae Maas 
Geest. & de Meijer, differs in having a grayish purple pileus and stipe, and forming 
subutriform to sublageniform, smooth cheilocystidia.  Mycena diosma, which belongs in the 
section Calodontes (Fr. ex Berk.) Quel. subsection Purae (Konr. & Maubl.) Maas Geest., is 
distinct in having smooth, fusiform cheilocystidia and pleurocystidia, and non-diverticulate 
elements in the cortical layer of pileus and stipe.  


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