Agrostula truncatula subsp. durieui (Boiss. & Reut. ex Willk.) P.M. Peterson, Romasch., Quintanar, Soreng & Sylvester, 2020

Peterson, Paul M., Sylvester, Steven P., Romaschenko, Konstantin, Soreng, Robert J., Barbera, Patricia, Quintanar, Alejandro & Aedo, Carlos, 2020, A phylogeny of species near Agrostis supporting the recognition of two new genera, Agrostula and Alpagrostis (Poaceae, Pooideae, Agrostidinae) from Europe, PhytoKeys 167, pp. 57-82 : 57

Agrostula truncatula subsp. durieui (Boiss. & Reut. ex Willk.) P.M. Peterson, Romasch., Quintanar, Soreng & Sylvester comb. nov.

≡ Agrostis durieui Boiss. & Reut. ex Willk., Suppl. Prodr. Fl. Hisp. 15. 1893 ≡ Agrostis truncatula subsp. durieui (Boiss. & Reut. ex Willk.) Asch. & Graebn., Syn. Mitteleur. Fl. 2(1): 193. 1899 ≡ Agrostis delicatula subsp. durieui (Boiss. & Reut. ex Willk.) Rivas Mart., Lazaroa 2: 328. 1980 ≡ Neoschischkinia truncatula subsp. durieui (Boiss. & Reut. ex Willk.) Valdés and H. Scholz, Willdenowia 36(2): 663. 2006. Type: Spain. Asturias: Peñaflor ["Hab. in Asturiis freq., usque ad summa juga occident., Peñaflor”], 16 Jun 1835, M.C. Durieu de Maisonneuve s.n. [Durieu Plant. Select. Hispano-Lusit sect. 1 Asturicae. Collectae, no. 173] (lectotype, designated by A.T. Romero García and G. Blanca, Taxon 35(4): 695. 1986: P-02219803 [image!]; isolectotypes: P-03487772 [image!], W-18890096450 [image!].

= Agrostis durieui Boiss. & Reut. ex Gand., Bull. Soc. Bot. France 43: 210. 1896, nom. illeg. hom., non Boiss. and Reut. ex Willk. 1893. Type: Spain. Palencia: m. “Peña Labra, in fissuris, rupium cacuminis, 5700 ft, 26 Jul 1894, M. Gandoger s.n." (lectotype, designated by S. Castroviejo and A. Charpin, Candollea 54(2): 475. 1999: LY [lower specimen]).

= Agrostis truncatula var. durieui Henriq., Bol. Soc. Brot. 20: 49. 1903, nom. Illeg. hom., non subsp. durieui Asch. & Graebn. Type: Spain. Asturias, 27 May 1864, Borgeau 2716. (lectotype, designated here: P-03330466 [image!]; isolectotypes: P-02220227 [image!], P-03330465 [image!], P-03487775 [image!].

= Agrostis truncatula subsp. commista Castrov. & Charpin, Candollea 38(2): 676. 1983, nom. illeg. superfl. Type: Spain. Zamora: Lubián, Chanos, proximidades del puerto de Padornelo, 29T PG 7356, 1200 m, 30 Dec [Jul] 1977, S. Castroviejo 790 (holotype: MA-242072 [image!]; isotype: G-00191448 [image!]).

Notes.

Romero García et al. (1988a) provide a key to differentiate the two subspecies. The typical subspecies has ligules as long or longer than wide with acute apices, conduplicate leaf blades that recurve at anthesis, and shorter lemmas 0.5-0.8 mm long whereas Agrostula truncatula subsp. durieui has ligules wider than long with truncate apices, flat, rarely conduplicate leaf blades that do not recurve at anthesis, and longer lemmas (0.7-)0.9-1(-1.2) mm long. Portal (2009) treated subsp. durieui as Agrostis durieui for France, and did not recognize A. truncatula as being in France.