真菌鉴定

使用形态特征、孢子印迹、栖息地和季节，以绝对安全第一的方法在野外鉴定真菌。

适用场景

• 遇到未知真菌，需要鉴定
• 采集食用蘑菇，需要在食用前确认物种
• 想要评估花园或房产中的真菌是否有害
• 通过结构化的观察练习来建立野外鉴定技能
• 需要区分可食用物种与危险的相似种

输入

• 必需：真菌标本或原位清晰观察
• 必需：能够观察精细的形态细节（菌盖、菌褶、菌柄、基部）
• 可选：该地区的野外指南或参考资料
• 可选：用于孢子印迹的纸和玻璃
• 可选：用于横截面检查的刀
• 可选：手持放大镜（10倍）用于细节观察

步骤

第 1 步：基本规则

在进行任何鉴定工作之前，内化真菌学的绝对规则。

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.

预期结果： 在继续鉴定之前已内化基本规则。

失败处理： 此步骤没有失败模式。如果规则未被内化，不要为食用目的进行野外鉴定。

第 2 步：记录栖息地

在触碰标本之前，通过环境信息缩小鉴定范围。

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                            |
+--------------------+------------------------------------------+

预期结果： 完整的栖息地记录，为物种级别的鉴定提供背景。

失败处理： 如果栖息地不明确（如混合种植的城市花园），记录可见信息。不完整的栖息地数据会降低鉴定可信度——将此纳入安全评估。

第 3 步：检查形态特征

对标本本身进行系统性检查。

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

预期结果： 涵盖所有主要特征的完整形态描述。

失败处理： 如果某个特征无法观察到（如菌环不可见但可能已脱落），记录为"未观察到"而非"不存在"。这个区别对鉴定很重要。

第 4 步：使用多重确认进行鉴定

将所有数据与参考资料交叉对照。

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        |
+----------+---------------------------+---------------------------+

预期结果： 物种级别的鉴定，带有明确的信心等级和相似种评估。

失败处理： 如果鉴定停留在属级别，这对于学习目的是可以接受的。对于食用，只有物种级别"确定"的鉴定才是可接受的。

验证清单

• 在开始鉴定前已确认基本规则
• 在检查标本前已记录栖息地
• 所有形态特征已系统地检查
• 已挖掘基部检查是否有菌托
• 已制作孢子印迹（如时间允许）
• 已明确检查并排除危险的相似种
• 已诚实评估信心等级
• 只有"确定"的鉴定才被考虑用于食用

常见问题

• 依赖单一特征："它看起来像鸡油菌"仅基于颜色。真正的鸡油菌具有假褶（脊状），从树木附近的土壤中生长，并有特殊的杏子气味。假鸡油菌和南瓜灯蘑菇共享颜色但其他所有特征都不同
• 跳过基部检查：未挖掘基部会错过菌托——这是鉴定致命鹅膏属物种（毒鹅膏、毁灭天使）最重要的特征
• 盲目信任应用程序：基于 AI 的蘑菇鉴定应用对相似种的错误率很高。将它们用作起点，绝不用作确认
• 假设"常见=安全"：丰度不等于可食性。致命物种可能在局部地区很丰富
• 品尝未知物种：一些真菌学家使用味道作为诊断工具，但这需要专家级别的知识来判断哪些物种可以安全品尝。对于非专家，不要品尝未知真菌
• 忽视延迟毒素：某些物种（如毒鹅膏 Amanita phalloides）味道宜人且症状延迟。到症状出现时（24-48小时），肝损伤已经很严重

相关技能

• mushroom-cultivation — 栽培已知物种完全消除了鉴定风险
• forage-plants — 互补的野外鉴定技能；共享多特征确认方法论