Lentinus punjabensis (Polyporaceae), a new species from Lal Suhanra National Park, southern Punjab, Pakistan Author Asif, Muhammad Author Saba, Malka Author Maula, Fazli Author Raza, Mubashar text Phytotaxa 2024 2024-03-28 642 2 169 181 http://dx.doi.org/10.11646/phytotaxa.642.2.5 journal article 10.11646/phytotaxa.642.2.5 1179-3163 13214285 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