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

1.2.Homostylium albescens var. discolor(Y. Ling) Z. X. Fu comb. nov. ≡ Aster albescens var. discolor Y. Ling, Fl. Reipubl. Popularis Sin. 74: 358. 1985. ≡ Sinosidus albescens var. discolor (Y. Ling) G. L. Nesom, Phytoneuron 2020-64: 13. 2020. Type: China, Sichuan, Songpan, alt. 2400 m, Roadside, 22 Oct 1937, T. P. Wang 7896 (holotype, PE 00274683!) (Suppl. material 1: fig. S 4). Type. China • Sichuan, Songpan, alt. 2400 m, Roadside, 22 Oct 1937, T. P. Wang 7896 (holotype, PE 00274683!) (Suppl. material 1: fig. S 4). Diagnosis. Leaves elliptic-lanceolate, 2–3.5 × 0.5–1 cm, abaxially white, appressed tomentose, adaxially glabrous. Phyllaries outer ovate, puberulent or glabrate. This variety is similar to Homostylium argyropholium. It may be intermediate between H. argyropholium and H. polium. Distribution. China, Sichuan (Songpan). Ca. 2400 m. Habitat. Subalpine. Etymology. The varietal name “ discolor ” is derived from the Latin “ dis - ” meaning “ apart ” or “ opposite ”, and “ - color ” meaning “ color ”. The name likely refers to a color variation (abaxially white leaves) compared to Homostylium albescens var. albescens. Specimens examined. China • Sichuan: Songpan, T. P. Wang 7896 (PE 00274683), T. P. Wang 7924 (PE).