Neotrinia splendens (Trin.) M. Nobis, P. Gudkova & A. Nowak, Turczaninowia 22 (1): 40. 2019,

Peterson, Paul M., Romaschenko, Konstantin, Soreng, Robert J. & Reyna, Jesus Valdes, 2019, A key to the North American genera of Stipeae (Poaceae, Pooideae) with descriptions and taxonomic names for species of Eriocoma, Neotrinia, Oloptum, and five new genera: Barkworthia, x Eriosel, PhytoKeys 126, pp. 89-125: 98

publication ID

http://dx.doi.org/10.3897/phytokeys.126.34096

persistent identifier

http://treatment.plazi.org/id/5CF187DE-F1D7-F690-13E7-8F25F4020E94

treatment provided by

PhytoKeys by Pensoft

scientific name

Neotrinia splendens (Trin.) M. Nobis, P. Gudkova & A. Nowak, Turczaninowia 22 (1): 40. 2019
status

 

Neotrinia splendens (Trin.) M. Nobis, P. Gudkova & A. Nowak, Turczaninowia 22 (1): 40. 2019 

Stipa splendens  Trin., Neue Entdeck. Pflanzenk. 2: 54. 1821 [Basionym] ≡ Agrostis longiaristata  Herb. in Ross. ex Kunth, Enum. Pl. 1: 178. 1833, nom. illeg. ≡ Lasiagrostis splendens  (Trin.) Kunth, Révis. Gramin. 1: 58. 1829 ≡ Achnatherum splendens  (Trin.) Nevski, Trudy Bot. Inst. Akad. Nauk S.S.S.R., Ser. 1, Fl. Sist. Vyssh. Rast. 4: 224. 1937. Type: Russia, Transbaicalia, Siberia, Fischer et Steven s.n. (holotype: LE-TRIN1444.1!). Fig. 3 H–KView Figure 3.

Distribution and habitat.

The single species, Neotrinia splendens  , is native to Asia in Afghanistan, India, Kazakhstan, Kyrgyzstan, China, Mongolia, Pakistan, Russia, Tajikistan, Turkmenistan, and Uzbekistan ( Wu and Phillips 2006). In North America N. splendens  has been introduced as an ornamental ( Barkworth 2007). The species occurs in cold, semi desert regions along drainages at 2100-3800 m ( Freitag 1985).

Comments.

Psammochloa villosa  (Trin.) Bor is sister to Neotrinia splendens  in our earlier molecular phylogeny (BS = 100, PP = 1.00) and both species share the following morphological features: basal fibrous sheaths, panicles with whorled primary branches arising from the rachis, (1-) 3-5-veined glumes with hyaline margins, short, obtuse to elliptic calluses, and evenly hairy lemmas with flexuous cauducous awns that arise between the apical teeth ( Freitag 1985; Wu and Phillips 2006; Barkworth 2007; Romaschenko et al. 2012). Neotrinia splendens  differs from Psammochloa villosa  in having cespitose culms without rhizomes, 4-7 (-8.5) mm long spikelets, 2.5-6.5 mm long glumes, 4.2-7.2 mm long lemmas that are evenly hairy with hairs up to 1.5 mm long, linear-lanceolate lodicules (versus flabellate), and 3.5-4.5 mm long anthers. It also differs from Achnatherum  in having saw-like lemma epidermal pattern.

As noted by Barkworth (2007), the plants are rarely grazed upon, and sometimes form dense tall stands in Asia (RJS pers. obs.; Tzvelev 1976, p. 564 comment). Achnatherum caragana  (Trin.) Nevski was treated as the only other A. sect. Neotrinia  species ( Tzvelev 1976), and may belong to the genus.

Kingdom

Plantae

Phylum

Tracheophyta

Class

Liliopsida

Order

Poales

Family

Poaceae

Genus

Neotrinia

Loc

Neotrinia splendens (Trin.) M. Nobis, P. Gudkova & A. Nowak, Turczaninowia 22 (1): 40. 2019

Peterson, Paul M., Romaschenko, Konstantin, Soreng, Robert J. & Reyna, Jesus Valdes 2019
2019
Loc

Lasiagrostis splendens

Kunth 1829
1829