Homostylium argyropholium var. paradoxum (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.15683991
persistent identifier	https://treatment.plazi.org/id/EE14E639-9043-5290-A97F-920B98854539
treatment provided by	PhytoKeys by Pensoft
scientific name	Homostylium argyropholium var. paradoxum (Y. Ling) Z. X. Fu
status	comb. nov.

Treatment

2.3. Homostylium argyropholium var. paradoxum (Y. Ling) Z. X. Fu comb. nov.

≡ Aster argyropholis var. paradoxus Y. Ling View in CoL , Fl. Reipubl. Popularis Sin. 74: 358. 1985. ≡ Sinosidus paradoxus (Y. Ling) G. L. Nesom View in CoL , Phytoneuron 2020-64: 13. 2020. Type: China, Sichuan, Barkam, alt. 2700 m, 18 July 1957, X. Li 23091 (holotype, PE 00275072!; isotype, KUN, not seen) (Suppl. material 1: fig. S 27).

Type.

China • Sichuan, Barkam , alt. 2700 m, 18 July 1957, X. Li 23091 (holotype, PE 00275072 !; isotype, KUN, not seen) (Suppl. material 1: fig. S 27) .

Diagnosis.

Leaves abaxially sparsely tomentose, secondary veins abaxially prominent. Involucres 5–6 mm. Phyllaries 5 - seriate. The lateral veins of abaxial leaves in this variety are prominently elevated and covered with fine tomentum, differentiating it from the type variety.

Distribution.

China, W Sichuan (Barkam, Jinchuan). Jinchuan is a new distribution record at the county level.

Habitat.

Subalpine.

Etymology.

The varietal name “ paradoxum ” is derived from the Greek “ paradoxos ”, meaning “ contrary to expectation ” or “ unexpected ”, combined with the Latin neuter suffix “ - um ”. The name likely refers to a distinctive or unexpected characteristic that distinguishes this variety from others.

Specimens examined.

China • Sichuan: Barkam, T. Y. Chang & H. F. Zhou 23091 (PE, IBSC, KUN, QTPMB), Z. X. Fu 3004 (PE), 3005 (PE), 3006 (PE), 3007 (PE), 3008 (PE), 3014 (PE), 3018 (PE); Jinchuan, Z. X. Fu 3002 (PE).