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FOC | Family List | FOC Vol. 22 | Poaceae | Elymus

14c. Elymus ciliaris var. hackelianus (Honda) G. Zhu & S. L. Chen, Fl. China. 22: 409. 2006.

日本纤毛草 ri ben xian mao cao

Basionym:Agropyron japonicum Honda var. hackelianum Honda, Bot. Mag. (Tokyo) 41: 385. 1927; A. ciliare var. hackelianum (Honda) Ohwi; A. ciliare f. japonense (Honda) Ohwi; A. ciliare var. hondae Keng, nom. illeg. superfl.; A. ciliare var. pauperum Keng; A. hackelianum (Honda) Beetle; A. hackelianum var. japonicum Beetle, nom. illeg. superfl.; A. japonense Honda; A. japonense var. hackelianum (Honda) Honda; A. japonicum Honda (1927), not (Miquel) P. Candargy (1901); Elymus ciliaris var. japonensis (Honda) S. L. Chen; E. ciliaris subsp. japonicus A. Löve; E. racemifer var. japonensis (Honda) Osada; Roegneria ciliaris var. hackeliana (Honda) L. B. Cai; R. ciliaris var. japonensis (Honda) C. Yen et al.; R. hackeliana (Honda) Nakai; R. japonensis (Honda) Keng; R. japonensis var. hackeliana (Honda) Keng; R. japonica B. S. Sun, nom. illeg. superfl.

Leaf blade abaxial surface glabrous, adaxial surface and margin scabrous. Glumes elliptic-lanceolate, apex acute or pointed. Lemma scabrous abaxially, margin ciliolate; first lemma 8–8.5 mm; awn 5–25 mm. Palea scabrous along keels distally. Fl. and fr. May–Jul. 2n = 28*.

Mountain slopes, roadsides. Anhui, Beijing, Fujian, Guizhou, Heilongjiang, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Shandong, Shanxi, Sichuan, Yunnan, Zhejiang [Japan, Korea].

When Agropyron japonicum and A. japonicum var. hackelianum are regarded as taxonomic synonyms and treated at varietal rank under Elymus ciliaris, the correct name under Art. 11.4 of the Saint Louis Code is the new combination E. ciliaris var. hackelianus. The earliest legitimate name at varietal rank is A. japonicum var. hackelianum, not the autonym, "A. japonicum var. japonicum," which was not validly published under Art. 27.2. Even though A. japonicum Honda is a later homonym and therefore illegitimate, A. japonicum var. hackelianum is legitimate under Art. 55.2.


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