taxonID	type	description	language	source
1291881873EB5076A1A792B3A1F77603.taxon	diagnosis	Diagnosis. Differs from other Clavariadelphus species in that the apex of the basidiomata is acuminate and pale to brownish yellow or golden-brown in color.	en	Li, Mei-jia, Deng, Peng-tao, Chen, Zuo-hong, Zhang, Ping (2025): Three new species of Clavariadelphus (Clavariadelphaceae, Gomphales) from the Hengduan Mountains region, China. MycoKeys 121: 357-374, DOI: 10.3897/mycokeys.121.158142
1291881873EB5076A1A792B3A1F77603.taxon	etymology	Etymology. Acuminatus (Latin) refers to the acuminate apex of the basidiomata.	en	Li, Mei-jia, Deng, Peng-tao, Chen, Zuo-hong, Zhang, Ping (2025): Three new species of Clavariadelphus (Clavariadelphaceae, Gomphales) from the Hengduan Mountains region, China. MycoKeys 121: 357-374, DOI: 10.3897/mycokeys.121.158142
1291881873EB5076A1A792B3A1F77603.taxon	description	Description. Basidiomata up to 15 cm high, 0.4 – 0.8 cm in diameter at the base, 0.8 – 1.2 cm in diameter in the middle, slightly tapering at both ends, simple, initially narrowly cylindrical, narrowly fusiform after maturity, mostly flexuous; hymenium initially smooth, then longitudinally rugose with age, pale (2 A 2) to pale orange (5 A 3) to apricot (5 B 6); apex fertile, obtuse to acute, smooth to rugose, darker than the hymenium with age, pale to brownish yellow (5 C 8) or golden brown (5 D 7); base terete, almost smooth, white to cream (4 A 3); context solid when young, gradually becoming soft and spongy with age. Odor and taste not recorded. Hymenium extending over the apex of the basidioma, composed of basidia and leptocystidia. Basidia 75 – 99 × 8.5 – 13 µm, narrowly clavate, pale yellow in KOH, smooth, thin-walled, clamped, 4 sterigmata (rarely 2), 6 – 12 µm tall, with numerous granular contents and guttules. Basidiospores [60 / 3 / 2] 8 – 9.6 (– 10.0) × 6 – 7.8 (– 8.0) µm [Q = (1.12 –) 1.14 – 1.50 (– 1.60), Q m = 1.36 ± 0.10], ellipsoid to broadly ellipsoid, with a prominent apiculus, and several oleiferous guttules within the spores, pale yellow in KOH, inamyloid, thin-walled, smooth. Leptocystiada 45 – 69 × 2 – 4 µm, mostly clavate, hyaline, smooth, clamped, with branches. Contextual hyphae 4 – 6 µm in diameter, thin-walled, clamped.	en	Li, Mei-jia, Deng, Peng-tao, Chen, Zuo-hong, Zhang, Ping (2025): Three new species of Clavariadelphus (Clavariadelphaceae, Gomphales) from the Hengduan Mountains region, China. MycoKeys 121: 357-374, DOI: 10.3897/mycokeys.121.158142
1291881873EB5076A1A792B3A1F77603.taxon	distribution	Ecological information and distribution. Solitary, scattered or gregarious on the ground in mixed coniferous and broadleaved forest at elevations of 2300 – 2400 m. Southwestern China.	en	Li, Mei-jia, Deng, Peng-tao, Chen, Zuo-hong, Zhang, Ping (2025): Three new species of Clavariadelphus (Clavariadelphaceae, Gomphales) from the Hengduan Mountains region, China. MycoKeys 121: 357-374, DOI: 10.3897/mycokeys.121.158142
4DE11A6794A950A3AE5720AD5B3C95F0.taxon	diagnosis	Diagnosis. Differs from other Clavariadelphus species in the small and pale yellow to salmon to purple-drab basidiomata with age.	en	Li, Mei-jia, Deng, Peng-tao, Chen, Zuo-hong, Zhang, Ping (2025): Three new species of Clavariadelphus (Clavariadelphaceae, Gomphales) from the Hengduan Mountains region, China. MycoKeys 121: 357-374, DOI: 10.3897/mycokeys.121.158142
4DE11A6794A950A3AE5720AD5B3C95F0.taxon	etymology	Etymology. Miniatus (Latin) refers to the small basidiomata of this species.	en	Li, Mei-jia, Deng, Peng-tao, Chen, Zuo-hong, Zhang, Ping (2025): Three new species of Clavariadelphus (Clavariadelphaceae, Gomphales) from the Hengduan Mountains region, China. MycoKeys 121: 357-374, DOI: 10.3897/mycokeys.121.158142
4DE11A6794A950A3AE5720AD5B3C95F0.taxon	description	Description. Basidiomata 4 – 10 cm tall, 0.2 – 0.5 cm in diameter, simple, narrowly cylindrical to clavate with age, slightly flexuous when young, occasionally branched; hymenium initially smooth, longitudinally rugose at maturity, pale yellow (2 A 3) to salmon (6 A 4) to purple-drab (11 E 5); apex fertile, smooth to rugose, obtuse to subacute, occasionally truncated with age, monochromatic with hymenium; base terete, almost smooth, pale orange (5 A 3); context solid when young, gradually becoming soft and spongy with age. Odor and taste not recorded. Hymenium extending over the apex of basidiomata, composed of basidia and leptocystidia. Basidia 72 – 120 × 10 – 13 µm, narrowly clavate, pale yellow in the KOH, smooth, thin-walled, clamped, 4 sterigmata (rarely 2), 6 – 12 µm tall, with numerous granular contents and guttules. Basidiospores [66 / 3 / 2] (16.5 –) 18.0 – 26.6 (– 27.0) × 4 – 6 (– 7.2) µm [Q = (2.75 –) 3.00 – 5.67 (6.50), Q m = 4.35 ± 0.79], ellipsoid to oblong, with a prominent apiculus, hyaline in the KOH, thin-walled, smooth, inamyloid. Leptocystida 30 – 82 × 3 – 4 µm, narrowly clavate, hyaline, smooth, clamped, with branches. Contextual hyphae 3 – 7 µm in diameter, thin-walled, clamped.	en	Li, Mei-jia, Deng, Peng-tao, Chen, Zuo-hong, Zhang, Ping (2025): Three new species of Clavariadelphus (Clavariadelphaceae, Gomphales) from the Hengduan Mountains region, China. MycoKeys 121: 357-374, DOI: 10.3897/mycokeys.121.158142
4DE11A6794A950A3AE5720AD5B3C95F0.taxon	distribution	Ecological information and distribution. Scattered or gregarious on the ground or on twigs in forest dominated by Picea in an elevational range of 3750 – 3800 m. Southwestern China.	en	Li, Mei-jia, Deng, Peng-tao, Chen, Zuo-hong, Zhang, Ping (2025): Three new species of Clavariadelphus (Clavariadelphaceae, Gomphales) from the Hengduan Mountains region, China. MycoKeys 121: 357-374, DOI: 10.3897/mycokeys.121.158142
FAFBC858991E5809BE82442B80CBAA8E.taxon	diagnosis	Diagnosis. Differs from other Clavariadelphus species in having ecru-drab to light purple drab basidiomata with age, becoming cinnamon after cutting or bruising.	en	Li, Mei-jia, Deng, Peng-tao, Chen, Zuo-hong, Zhang, Ping (2025): Three new species of Clavariadelphus (Clavariadelphaceae, Gomphales) from the Hengduan Mountains region, China. MycoKeys 121: 357-374, DOI: 10.3897/mycokeys.121.158142
FAFBC858991E5809BE82442B80CBAA8E.taxon	etymology	Etymology. Pseudoelongatus (Latin) refers to having longer basidiomata than other Clavariadelphus species, but differing from C. elongatus.	en	Li, Mei-jia, Deng, Peng-tao, Chen, Zuo-hong, Zhang, Ping (2025): Three new species of Clavariadelphus (Clavariadelphaceae, Gomphales) from the Hengduan Mountains region, China. MycoKeys 121: 357-374, DOI: 10.3897/mycokeys.121.158142
FAFBC858991E5809BE82442B80CBAA8E.taxon	description	Description. Basidiomata 6 – 14 cm tall, 0.7 – 0.9 cm in diameter, simple, narrowly cylindrical to clavate in age, erect or slightly flexuous, occasionally branched; hymenium longitudinally apparent rugose, ecru-drab (5 A 2 – 4) to light purple drab (12 D 3 – 12 D 4), slowly stained cinnamon (6 D 6) after cutting or bruising; apex fertile, smooth to rugose, obtuse to subacute with age, monochromatic with hymenium, rarely dark violet (16 F 8); base terete, almost smooth, white; context solid when young, gradually becoming soft and spongy in age. Odor and taste not recorded. Hymenium extending over the apex of the basidiomata, composed of basidia and leptocystidia. Basidia 81 – 113 × 8 – 13 µm, narrowly clavate, pale yellow in KOH, smooth, thin-walled, clamped, 4 sterigmata (rarely 2), 8 – 15 µm tall, with numerous granular contents and guttules. Basidiospores [60 / 3 / 2] (9.2 –) 9.8 – 11.0 (– 13.0) × (6.0 –) 6.4 – 9.5 (– 11.0) µm [Q = 1.16 – 1.55 (– 1.67), Q m = 1.31 ± 0.10], ellipsoid to broadly ellipsoid, with a prominent apiculus, and several oleiferous guttules within the spores, pale yellow in KOH, thin-walled, smooth, inamyloid. Leptocystida 31 – 71 × 2 – 6 µm, narrowly clavate, hyaline, smooth, clamped, with branches. Contextual hyphae 5 – 9 µm in diameter, thin-walled, clamped.	en	Li, Mei-jia, Deng, Peng-tao, Chen, Zuo-hong, Zhang, Ping (2025): Three new species of Clavariadelphus (Clavariadelphaceae, Gomphales) from the Hengduan Mountains region, China. MycoKeys 121: 357-374, DOI: 10.3897/mycokeys.121.158142
FAFBC858991E5809BE82442B80CBAA8E.taxon	distribution	Ecological information and distribution. Scattered or gregarious on the ground in the coniferous and broadleaved mixed forest in an elevational range of 3800 – 3828 m. Southwestern China.	en	Li, Mei-jia, Deng, Peng-tao, Chen, Zuo-hong, Zhang, Ping (2025): Three new species of Clavariadelphus (Clavariadelphaceae, Gomphales) from the Hengduan Mountains region, China. MycoKeys 121: 357-374, DOI: 10.3897/mycokeys.121.158142
