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Auricularia specimens deposited in the National Museum of Nature and Science, Japan, were observed to reexamine their species identification based on updated taxonomic criteria, and to verify the taxonomy and distribution of Auricularia spp. in Japan. Four of the ten specimens previously identified as A. auriculajudae were reidentified as A. americana (1), A. cornea (1), and A. villosula (2) based on morphological criteria such as medullae, abhymenial hairs, and basidiospores. The remaining six specimens could not be identified at the species level due to the lack of distinguishing morphological characteristics. Two of the five specimens previously considered A. minor were identified as different species due to basidiospore size discrepancy, but the remaining two specimens and the type specimen were in poor condition, and their basidiospores could not be properly observed. Three of the nine specimens previously identified as A. polytricha were reidentified as A. cornea based on morphological criteria. The remaining six specimens were not identified as A. polytricha. The type specimens of A. polytricha f. leucochroma and A. polytricha f. tenuis were in poor condition, and their basidiospores could not be properly observed. Reexaminations of existing specimens based on recent taxonomic criteria will contribute to updating the taxonomy and distribution of Auricularia spp. in Japan., 国立科学博物館に収蔵されているAuricularia標本の形態を観察し，近年の分類学的基準に基づく種同定および本属菌の日本における分類と分布の再検討を行った。その結果，A. auricula-judaeとされていた10標本中，4標本がそれぞれA. americana（1），A. cornea（1），A. villosula（2）に再同定された。残りの6標本は，種の識別に有用な形態的特徴がみられなかったため，種同定には至らなかった。Auricularia minor とされていた5 標本のうち，2標本は本種とは別種と考えられた。残りの2標本とタイプ標本は状態が良好ではなく，十分な担子胞子の観察ができなかった。Auricularia polytricha とされていた9標本のうち，3標本はA. corneaに再同定された。残りの6標本はA. polytrichaやA. nigricansとは別種であると考えられた。Auricularia polytricha f. leucochromaとA. polytricha f. tenuisのタイプ標本は状態が良好ではなく，担子胞子の観察ができなかった。近年の分類基準に基づいて過去の標本を再検討することにより，日本におけるAuricularia spp.の分類と分布情報を更新することができるだろう。

南硫黄島から2017年に採集されたきのこ類についてリスト化するともに子実体写真で紹介する。合計12標本(2門2綱4目9科11属11種)が採集され、全て腐生菌もしくは木材腐朽菌であった。多くは南硫黄島に自然分布する種であると思われる。, Several species of mushrooms (Ascomycota and Basidiomycota) collected and identified from Minami-Iwo-To Island, Japan in 2017 are reported with photographs and a list of specimens. A total of 12 specimens (2 phyla, 2 classes, 4 orders, 9 families, 11 genera, and 11 species) were collected. All species were either saprophytes or wood decay fungi and most are considered native to the island.

Crepidotus crocophyllus, one of the most common species of the genus Crepidotus (Basidiomycota, Fungi)in Japan, were morphologically and phylogenetically reexamined based on the materials collected from Choshi, Chiba Prefecture, Central Japan. Morphologically, Japanese C. crocophyllus were well match with previous descriptions of the present species based on European and American materials. To reveal the phylogenetic placement of Japanese specimens of C. crocophyllus, molecular phylogenetic analysis of the present species were conducted. By maximum parsimony analysis of nuclear rRNA ITS region, materials of C. crocophyllus collected from Japan (Choshi, Chiba) and North America (USA) were placed within well-supported, different clades each other. The present analysis revealed for the first time that Japanese and North American specimens of C. crocophyllus are polyphyletic, and a taxonomic revision of the species tentatively identified as C. crocophyllus is therefore needed.

The foray was held to identify mushroom species in Ishigaki Island, Okinawa. Nine participants collected mushrooms around Mt. Omoto, Banna Park, Arakawa Taiwan Cherry Habitat, Yonehara Palm Tree Grove and Kuura area between June 9 and 15, 2012. Eighty-seven species of mushrooms were identified and the specimens were preserved mainly in the National Museum of Nature and Science., 沖縄県石垣島のきのこ相を明らかにする目的で、菌類採取会を開催した.９名の参加者が2012年6月11日から15日にかけ、於茂登岳周辺、パンナ公園内、新川カンヒザクラ自生地周辺、米原ヤエヤマヤシ群生地周辺、久宇良地域において、子実体の採集を行なった。その結果、87種類の菌類が同定され、標本は主に国立科学博物館に保管された。, 紀要論文

The foray was held to identify mushroom species in Iriomote Island. Thirty-six participants collected mushrooms in the field between Gunkan-iwa Rock and Mariyudō-no-taki along the Urauchi River, and around the Mare River near the Iriomote station, Tropical and Biosphere Research Center, the University of the Ryukyus on June 11, and Ohtomi Forest Path on June 12, 2011. Sixty-eight mushrooms were identified and 105 specimens were preserved in the National Museum of Nature and Science., 本観察会の目的は，西表島のきのこ相を明らかにすることにあった．参加者は36名であり，2011年6月11日には浦内川上流（軍艦岩からマリユドゥの滝まで）および琉球大学熱帯生物圏研究センター西表研究施設付近マーレー川において，6月12日には大富遊歩道において，採集が行われた．その結果，68種類が鑑定され，105個の標本が国立科学博物館に保管された．, 紀要論文