TABLE 2. A in Panellus microspermus sp. nov. (Agaricales, Basidiomycota) evidenced by the morphological characters and molecular phylogeny

TABLE 2. A comparison of the characteristics of several species of Panellus with micro-basidiospores. SpeciesP. dichotomusP. microsporusP. microspermusP. pusillusP. stipticusBasidiomata size (mm) up to 21× 32up to 45–15 × 3–95–2012–32 × 12–15Colorcream-white then light fawn, fawn ochraceous, or subrufousfawn browngrayish to grayish brown when fresh and drynearly white to pale when fresh, reddish brown after several years in herbariumpale Ochraceous Buff to Light Ochraceous BuffPore/ lamellaelamellaeporelamellaeporelamellaeStipe(mm)1–3 × 2–51–1.5 × 1 mm0.5–2 × 1–3present6–12 × 3–8Basidiospores (μm)2.7–3 × 1.7–23–4 × 0.82.5–3.2 × 1.5–24–5.5 × 2–33.5–4.5 × 1.2–2.2Basidia (μm)14–17 × 3.5–4.512–15 × 3.5–418–22 × 4–512–20 × 4–515–20 × 2.5–3.5Cystidia (μm)cheilocystidia present; Pleurocystidia absentcheilocystidia present; Pleurocystidia absentcheilocystidia present; Pleurocystidia presentcheilocystidia present; Pleurocystidia absent or presentcheilocystidia present; Pleurocystidia presentTramal hyphae (μm)–2–62–33–7(–10)2.5–8(–10)ReferenceCorner 1986Corner 1986this studyBurdsall & Miller 1975 Burdsall & Miller 1975表2 数种具小型担孢子的扇菇属（Panellus）物种特征对比 | 特征项 | 双裂扇菇（*P. dichotomus*） | 小孢扇菇（*P. microsporus*） | 细孢扇菇（*P. microspermus*） | 矮小扇菇（*P. pusillus*） | 无柄扇菇（*P. stipticus*） | | :--- | :--- | :--- | :--- | :--- | :--- | | 担子果大小（mm） | 最大可达21×32 | 最大可达45–15 × 3–9 | 5–20 | 12–32 × 12–15 | 未标注 | | 颜色 | 乳白至浅黄褐色，或赭黄褐色、微红褐色 | 黄褐色 | 新鲜及干燥时呈灰褐至暗灰褐色 | 新鲜时近白色至淡色，标本馆存放数年后呈红棕色 | 淡赭黄色至浅赭黄色 | | 菌孔/菌褶 | 菌褶 | 菌孔 | 菌褶 | 菌孔 | 菌褶 | | 菌柄（mm） | 1–3 × 2–5 | 1–1.5 × 1 | 0.5–2 × 1–3 | 存在 | 6–12 × 3–8 | | 担孢子（μm） | 2.7–3 × 1.7–2 | 3–4 × 0.8 | 2.5–3.2 × 1.5–2 | 4–5.5 × 2–3 | 3.5–4.5 × 1.2–2.2 | | 担子（μm） | 14–17 × 3.5–4.5 | 12–15 × 3.5–4 | 18–22 × 4–5 | 12–20 × 4–5 | 15–20 × 2.5–3.5 | | 囊状体（μm） | 缘囊状体存在，侧囊状体缺失 | 缘囊状体存在，侧囊状体缺失 | 缘囊状体存在，侧囊状体存在 | 缘囊状体存在，侧囊状体缺失或存在 | 缘囊状体存在，侧囊状体存在 | | 菌髓菌丝（μm） | 无数据 | 2–6 | 2–3 | 3–7(–10) | 2.5–8(–10) | | 参考文献 | Corner 1986 | Corner 1986 | 本研究 | Burdsall & Miller 1975 | Burdsall & Miller 1975 |