形態学的特徴、胞子紋、生息地分析、季節的文脈を使用した安全第一アプローチによる 菌類のフィールド同定。傘、ひだ、柄、胞子の特徴、類似種の区別、毒性リスク評価、 消費前の絶対的確実性の重要ルールを網羅する。未知の菌類に遭遇した時、食用キノコを 採集して消費前に種の確認が必要な時、庭や敷地の菌類が有害かどうかを評価する時、 または食用種と危険な類似種を区別する時に使用する。
形態学的特徴、胞子紋、生息地、季節を使用して、絶対的な安全第一アプローチでフィールドにおける菌類を同定する。
同定作業の前に、菌類学の絶対的ルールを内面化する。
CARDINAL RULE:
If you are not 100% certain of the identification, DO NOT EAT IT.
There is no "universal edibility test" for mushrooms.
Some deadly species taste pleasant.
Some deadly species have delayed symptoms (24-72 hours).
Some deadly species have NO antidote.
The cost of a false positive (eating a misidentified mushroom) is
organ failure and death. The cost of a false negative (skipping an
edible mushroom) is a missed meal.
ALWAYS ERR TOWARD CAUTION.
期待結果: 同定に進む前に基本ルールが内面化されていること。
失敗時: このステップに失敗モードはない。ルールが内面化されていない場合、消費目的のフィールド同定に進まない。
標本に触れる前に文脈を記録して同定の範囲を絞る。
Habitat Recording:
+--------------------+------------------------------------------+
| Factor | Record |
+--------------------+------------------------------------------+
| Substrate | Soil, wood (dead/living), dung, leaf |
| | litter, moss, other fungi |
+--------------------+------------------------------------------+
| Tree association | What trees are within 10m? (Many fungi |
| | are mycorrhizal with specific tree genera)|
+--------------------+------------------------------------------+
| Moisture | Dry, damp, wet, waterlogged |
+--------------------+------------------------------------------+
| Light | Full shade, dappled, open |
+--------------------+------------------------------------------+
| Season | Early spring, late spring, summer, early |
| | autumn, late autumn, winter |
+--------------------+------------------------------------------+
| Altitude | Lowland, mid-altitude, montane |
+--------------------+------------------------------------------+
| Growth pattern | Solitary, scattered, clustered, ring, |
| | shelf/bracket |
+--------------------+------------------------------------------+
期待結果: 種レベルの同定に文脈を提供する完全な生息地記録。
失敗時: 生息地が不明瞭な場合（例：混植の都市庭園）、見えるものを記録する。不完全な生息地データは同定の信頼度を下げる — これを安全性評価に反映させる。
標本自体の体系的な検査。
Morphological Checklist:
CAP (Pileus):
- Shape: convex, flat, concave, conical, umbonate, bell-shaped
- Diameter (measure or estimate)
- Surface: smooth, scaly, fibrous, slimy, dry, cracked
- Colour (note if colour changes with age or moisture)
- Margin: smooth, striate, inrolled, appendiculate (veil remnants)
GILLS / PORES / SPINES (Hymenium):
- Type: gills (lamellae), pores (tubes), spines (teeth), smooth
- Attachment: free, adnexed, adnate, decurrent
- Spacing: crowded, close, distant
- Colour (important — note changes with age)
- Bruising: do gills change colour when damaged?
STEM (Stipe):
- Height and diameter
- Shape: equal, tapered, bulbous, club-shaped
- Surface: smooth, fibrous, scaly, reticulate (netted)
- Interior: solid, hollow, stuffed (pithy center)
- Ring (annulus): present/absent, position, persistent/fragile
- Volva (cup at base): present/absent — ALWAYS check by
carefully excavating the base (Amanita species have a volva)
FLESH (Context):
- Colour when cut
- Colour change on exposure to air (note time to change)
- Texture: firm, brittle, fibrous, gelatinous
- Smell: mushroomy, anise, radish, flour, chlorine, unpleasant
- Taste: (ONLY if species is confirmed non-deadly by an expert;
for unknown species, DO NOT taste)
SPORE PRINT:
- Remove the stem; place the cap gill-side down on paper
(half white, half dark paper to see any colour)
- Cover with a glass or bowl to maintain humidity
- Wait 4-12 hours
- Record spore colour: white, cream, pink, brown, purple-brown,
black, rust-orange
期待結果: すべての主要な特徴を網羅する完全な形態学的記述。
失敗時: 特徴が観察できない場合（例：リングが見えないが失われた可能性がある）、「不在」ではなく「観察されず」と記録する。この区別は同定に重要である。
すべてのデータを参考資料と照合する。
Identification Protocol:
1. Use habitat + season to narrow to likely genera
2. Use cap shape + gill type + spore colour to narrow to species group
3. Check ALL features against the candidate species description
4. Specifically check against dangerous look-alikes:
- Does this species have a deadly doppelganger?
- What feature distinguishes the edible from the deadly?
- Can I see that distinguishing feature clearly?
Confidence Levels:
+----------+---------------------------+---------------------------+
| Level | Criteria | Action |
+----------+---------------------------+---------------------------+
| Certain | All features match; no | Safe to collect (for |
| | look-alike confusion; | experienced identifiers) |
| | experienced with species | |
+----------+---------------------------+---------------------------+
| Probable | Most features match; | DO NOT eat. Collect for |
| | one or two uncertain; | further study (spore |
| | look-alike eliminated | print, expert review) |
+----------+---------------------------+---------------------------+
| Possible | Some features match; | DO NOT eat. Photograph |
| | look-alike not fully | and seek expert opinion |
| | eliminated | |
+----------+---------------------------+---------------------------+
| Unknown | Cannot narrow to species | DO NOT eat. DO NOT |
| | | handle extensively |
+----------+---------------------------+---------------------------+
期待結果: 明示的な信頼度レベルと類似種評価を伴う種レベルの同定。
失敗時: 同定が属レベルで止まる場合、学習目的としては許容される。消費目的には、種レベルの「確実」な同定のみが許容される。
mushroom-cultivation — 既知の種の栽培により同定リスクを完全に排除するforage-plants — 補完的なフィールド同定スキル；複数特徴確認の方法論を共有する