1. Absence of obvious demarcation between pileus and stipe	2
1. Presence of obvious demarcation between pileus and stipe	8
2. Pileus colored with vivid yellow to orange	C. aureus
2. Pileus colored with gray brown, brown, dark brown to almost black	3
3. Pileal surface covered with scabrous	C. squamatus
3. Pileal surface subglabrous to glabrous	4
4. Basidiospores average length <8 µm, occurring in tropical regions	C. parvopullus
4. Basidiospores average length >8 µm, occurring in subtropical or temperate regions	5
5. Pileal surface colored with blackish brown, blackish to almost black, basidiospores average length <11 µm.	6
5. Pileal surface colored with brown, gray-brown to dark brown, lacking any black tinge, basidiospores average length >11 µm.	7
6. Basidia longer (up to 106 µm), pileipellis a cutis, and distributed in temperate regions	C. badiogriseus
6. Basidia shorter (up to 62 µm), pileipellis a trichoderm, and distributed in subtropical regions	C. involutus
7. Margin of pileus colored with dark brown, basidiospores larger measuring 12.8–14.5 × 9–11 µm	C. macrosporus
7. Margin of pileus colored with orange-white, basidiospores smaller measuring 10–12 × 6.8–8 µm	C. croceialbus
8. Basidomata very pale, whitish, grow on dead wood	C. albidus
8. Basidomata brown, yellow, grow on ground	9
9. Hyphal clamp connections absent	10
9. Hyphal clamp connections abundant	13
10. Hymenophore slightly veined, white tinged with violet, stipe beige-almond, and distributed in tropical regions	C. albimarginatus
10. Hymenophore with well-developed veins, gray, stipe brown, and distributed in subtropical or temperate regions	11
11. Stipe shorter (up to 3.5 cm), hymenophore with strongly anastomosing vein, and distributed in temperate regions	C. connatus/striatus
11. Stipe longer (up to 5 cm), hymenophore veined, and distributed in subtropical regions	12
12. Pileus colored with pale brown to brown, pileipellis composed of narrower hyphae (up to 8 µm)	C. longitipes
12. Pileus colored with dark brown to almost black, pileipellis composed of wider hyphae (up to 11 µm)	C. atrobrunneolus
13. Basidiospores shorter (6–7.5 µm), terminal cells wider (up to 19 µm)	C. yunnanensis
13. Basidiospores longer (8–11.5 µm), terminal cells narrower (up to 10 µm)	14
14. Pileus colored with brown, hymenophore veined, or sometimes smooth	C. lutescens
14. Pileus colored with grayish-yellow to fulvous, hymenophore veined, never smooth	15
15. Hymenophore colored with yellowish, stipe colored with egg-yolk yellow	C. fulviceps
15. Hymenophore colored with white to pale, stipe colored with pale lemon yellow	C. minor