Key to known species of the genus Lentinus from Pakistan

1a. applanate pileus ................................................................................................................................................................................. 2.

1b. convex pileus ..................................................................................................................................................................................... 3.

2. yellow brown pileus, yellowish lamellae, pale brown scurfy stipe, basidiospores oblong (7.2–11.5 × 3.5–5.3 µm), metuloids absent, dimitic hyphae, clamp connections present................................................................................................. Lentinus crinitus

3a. hairy pileus surface............................................................................................................................................................................ 4.

3b. scaly pileus surface............................................................................................................................................................................ 5.

4. brown pileus, lamellae white, stipe smooth, basidiospores cylindrical (6.5–7.7x2.7–3.6 μm) pileipellis a cutis, dimitic hyphae...... .................................................................................................................................................................................. Lentinus prolifer

5a. lamellae present ................................................................................................................................................................................. 7.

5b. pores present...................................................................................................................................................................................... 6.

6. brown pileus, white to ochreous lamellae, white to brown scaly stipe, basidiospores elongated to ellipsoid (6–7x2–3 μm), metuloids absent, pileipellis a cutis.......................................................................................................................................... Lentinus tigrinus

7a. smooth stipe....................................................................................................................................................................................... 8.

7b. scabrous stipe..................................................................................................................................................................................... 9.

8. brown pileus, white stipe, oblong to cylindrical (6.5–10 × 3–3.5 µm) basidiospores, metuloids absent, cylindrical cheilocystidia, pileipellis a trichoderm ........................................................................................................................................ Lentinus arcularius

9a. basidiospores oblong ....................................................................................................................................................................... 11.

9b. basidiospores cylindrical ................................................................................................................................................................. 10.

10. yellow brown pileus, white pores, yellowish brown scabrous stipe, basidiospores (4–7 x 2–2.5 µm .................... Lentinus brumali

11a. metuloids present............................................................................................................................................................................. 12.

11b. metuloids absent .............................................................................................................................................................................. 13.

12. brown to dull brown pileus, creamy to brown lamellae, basidiospores (5.1–7.9 × 2.3–4 µm), lageniform to utriform cheilocystidia, pileipellis a trichoderm ..................................................................................................................................... Lentinus punjabensis

13. brown pileus, white to pale brown lamellae, white to light brown stipe, basidiospores (5–8 × 1.5–3 µm), narrowly clavate to utriform cheilocystidia.................................................................................................................................... Lentinus squarrosulus