TABLE 2 in A new species of Boletinellus (Boletinellaceae, Boletales) from India

TABLE 2. Comparison of Boletinellus species based on morphological features
Species namePileusHymenophoreBasidiosporesBasidiaHymenial CystidiaPileipellisStipe surfaceBoletinellus exiguusPale yellow becoming yellowish brownBluing when bruised7–9 x 5.5–6 μm, ellipsoid, inamyloid2-, 4- sporedPoorly differentiatedPoorly developed cutis of repent, filamentous hyphaeDry, smoothB. merulioidesBrown to yellowish brownBluing when bruised7–10 x 6–7.5 µm, ellipsoid, dextrinoid4- sporedPresentTrichoderm composed of filamentous hyphaeSmooth or reticulated at apex by the decurrence of the tubesB. proximusDeep brown becoming pale brownish with pinkish buffUnchanging on bruising7–9.8 x 4.8–6.8 μm, short-ellipsoid4- sporedPresentNot availableNot availableB. rhytidophyllusBrown to yellowish brownUnchanging or turning brownish8.5–11 x 6–7 μm, ellipsoid to oblong, inamyloid2-, 4- sporedPresentTrichoderm composed of filamentous hyphaeSmoothB. rompeliiEvenly dark brown or yellowish brown to light brownChanges to olive yellow on bruising or with age (Watling & Meijer 1997)8.5–10.5 x 5.5–6.8 μm, ellipsoid, smooth, slightly thick-walled, olivaceous brown4- sporedAbsentPoorly developed cutis with suberect, slightly gelatinized hyphaeNot availableB. viridianusBrownish to yellowish brownChanges to bluish green immediately when bruised6.5–7.5 x 5–5.5 μm, oblong to ellipsoid, inamyloid2-, 4- sporedPresentCutis with ascending trichodermal patches of filamentous hyphaeCovered with the hymeno- phore down to the base