Homostylium albescens var. glandulosum Z. X. Fu 2025, comb. nov.

1.5.Homostylium albescens var. glandulosum(Hand. - Mazz.) Z. X. Fu comb. nov. ≡ Aster albescens var. glandulosus Hand. - Mazz., J. Bot. 76: 284. 1938. ≡ Sinosidus albescens var. glandulosus (Hand. - Mazz.) G. L. Nesom, Phytoneuron 2020-64: 13. 2020. Type: China, Xizang, Chamdo, alt. 13000 ft, 6 August 1933, F. Kingdon-Ward 10752 (holotype, E 00385688!; isotype, BM 000945772!) (Suppl. material 1: figs S 8, S 9). Type. China • Xizang, Chamdo, alt. 13000 ft, 6 August 1933, F. Kingdon-Ward 10752 (holotype, E 00385688!; isotype, BM 000945772!) (Suppl. material 1: figs S 8, S 9). Diagnosis. Leaves ovate or ovate to oblong-lanceolate, 4–10 × 1–2.5 cm, abaxially brown hairy on veins, densely glandular. It is clearly similar to H. albescens var. salignum but has smaller leaves, more glandular points, and different hairiness. Distribution. China, S and E Xizang (Yadong, Bomi, Ranwu, Zayü, etc.), W and SW Sichuan, NW Yunnan (Weixi, Deqin, etc.); India. 1900 to 3900 m. Habitat. Subalpine. Etymology. The varietal name “ glandulosum ” is derived from the Latin “ glandula ”, meaning “ gland ”, and the neuter suffix “ - osum ”, meaning “ full of ” or “ abundant in ”. The name likely refers to the abundant glands on this variety, suggesting glandular leaves on the abaxial surface. Specimens examined. China • Sichuan: Dege, Y. W. Tsui 5082 (PE); Precise locality unknown, W. G. Hu & C. Ho 10929 (PE); • Xizang: Bomê, T. S. Ying & D. Y. Hong 650124 (PE 01825438, PE 00274703), 650193 (PE 00274701, PE 00274702), 651069 (PE), S. Z. Cheng & B. S. Li 173 (PE), 486 (PE), 617 (PE 01825439, PE 01825440); Chagyab, Qinghai-Tibet Exped. 12287 (PE), Jin W. Zhang 1098 (PE), 6316 (PE); Zayü, Z. C. Ni et al. 1091 (PE 00274679, PE 00274680); Cona, C. Y. Wu et al. 75-1099 (PE); Qamdo, F. Kingdon-Ward 10752 (E 00385688, BM 000945772), G. C. Xia et al. 1326 (PE), 1390 (PE); Gongjue, Qinghai-Tibet Exped. 12553 (PE 00274744, PE 00274745), J. S. Yang 91-493 (PE); Gyaca, Xizang Med. Herb Exped. 4551 (PE); Nyingchi, B. S. Li et al. 6410 (PE), Z. C. Ni et al. 0034 (PE 00274675, PE 00274676); Lhünzê, G. X. Fu & Jin W. Zhang 01159 (PE); Mainling, B. S. Li & S. Z. Cheng 05549 (PE), Z. C. Ni et al. 3052 (PE); Mêdog, B. S. Li & S. Z. Cheng 01135 (PE 01824803, PE 01824804); Yadong, G. X. Fu & Jin W. Zhang 1080 (PE), G. X. Fu & Jin W. Zhang 1122 (PE), G. X. Fu 907 (PE), Precise locality unknown, C. W. Wang 66550 (PE), S. X. Jia 315 (PE), 418 (PE), 682 (PE); • Yunnan: Deqing, T. T. Yu 8459 (PE 00274697, PE 00274698); Weixi, C. W. Wang 68048 (PE 00274699, PE 00274700).