Homostylium albescens var. discolor (Y. Ling) Z. X. Fu, 2025

Chen, Xinyu & Fu, Zhixi, 2025, Resurrection of the genus Homostylium Nees for the former Aster ser. Albescentes Y. Ling (Astereae, Asteraceae), with an updated generic synopsis, PhytoKeys 259, pp. 27-66 : 27-66

publication ID	https://doi.org/10.3897/phytokeys.259.155606
DOI	https://doi.org/10.5281/zenodo.15683957
persistent identifier	https://treatment.plazi.org/id/F471A1F2-132E-5354-A944-A061B65D6CDF
treatment provided by	PhytoKeys by Pensoft
scientific name	Homostylium albescens var. discolor (Y. Ling) Z. X. Fu
status	comb. nov.

Treatment

1.2. Homostylium albescens var. discolor (Y. Ling) Z. X. Fu comb. nov.

≡ Aster albescens var. discolor Y. Ling View in CoL , Fl. Reipubl. Popularis Sin. 74: 358. 1985. ≡ Sinosidus albescens var. discolor (Y. Ling) G. L. Nesom View in CoL , 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).