Calamagrostis elata Blytt, Norsk Flora (1847) p. 143; Jiitbiihoi!-!). CaI(ini(tciroslis 

 Langsdorffd Cl-ink) Trin. ii ainai;. (Jjopjiaxt-Bii Tpy;;. Fxit. Myy. Ibiiicii. Ai>a,T. Hayi.h. VIII, 

 p. 50; KpLi.i. $.1. A.1T. VII (1914) p. 1600. 



On islets in the Yenisei, in moist brush-wood. Specimens gathered at the beginning 

 of June, not yet bearing full-blown flowers. 



Distribution: Northern Europe, Siberia, eastwards to the Yenisei. 



Calamagrostis epigeios (L.) Roth, Tent. Flor. Germ. I (1788) p. 34; Ledeb. Fl. Alt. 

 I, p. 87; Turrzan. Cat. Baical. no. 1279; Ledeb. Fl. Ross. lY, p. 432; Turczan.Fl.Baical.- 

 Dahur. (1856, I) p. 23, no. 1305; Kpbi.T. $.i A.n. VII (1914) p. 1603. 



In di-y brush- wood on the islets in the junction of the river Abakan with the 

 Yenisei, near Kalna in the Amyl valley, scattered along the Upper Sisti-kem. Flowering 

 in July and the first half of August. 



Distribution: Temperate portions of Europe and Asia, South Africa. 



Aera caespitosa L. Spec. PI. ed. II (1762) p. 96; Ledeb. Fl. Alt. I, p. 90; Turczan. Cat. 

 Baical. no. 1292. Deschampsia caespitosa P. de Beauv. Ess. Agrostograph. (1812) p. 

 160; Ledeb. Fl. Ross. IV, p. 421; Turczan. Fl. Baical.-Dahur. (1856, I) p. 31, no. 1317. 



Common in moist meadows in woods, near Kushabar, in subalpine and alpine 

 tracts near the Sisti-kem and in the Altaian, where full-blown at the end of July, and also 

 on the banks of the Bei-kem, near Tara-kem, and at Sebi. 



Distribution: Europe, temperate portions of Asia, Africa, North America, Australia. 



Trisetum flavescens (L.) P. de Beauv. Ess. Agrostograph. (1812) p. 88; Ledeb. Fl. 

 Alt. I, p. 91; Turczan. Cat. Baical. no. 1296; L'pi.i.i. $.1. A.ix. VII (1914) p. 1609. Avena 

 flavescens L. Spec. PI. ed. II (1762) p. 118; Ledeb. Fl. Ross. IV, p. 417; Turczan. Fl. 

 Baical-Dahur. (1856, I) p. 32, no. 1319. 



subspec. copiosiim siibspec. nov. 



Caulibus validis el foliis latis praecipiie dislincUim. Caides j)liis minus 1 ni. (dii, 

 rigidi, erecti, sulcati, semper glabri. Folia 8—10 mm. lata, vaginae semper laevissimae. 

 Ghima superior longiludine paleas aecpians vel paululum brevior, comparale angusta, in 

 medio lalissima, ulroque sensim anguslior, in apice atlenuala el rolundaia. nunquam exlracla 

 vel acuminata, sed nonnunquam oblusa et truncaia, trinervia. Gldma inferior angusta, 

 paene recta, e basi sensim atlenuala el acuminata, uninervia. Utracjue gluma secundum 

 nervum medium scabra. Palea inferior anguslior quam in forma typica, infra medium 

 semper lalissima, superne sensim anguslior et arista longiore scabra inslrucla. Panicula 

 satis mulliflora, rami paene omnino glabri, sub ipsa spicula lantuni nonnunquam 

 scabriusculi. Spiculae pauciflorae, plerumque 2, nonnunquam 3. flores ferenles. 



The widely distributed species Trisetum flavescens (L.) P. de Bkaiv. varies con- 

 siderably, especially in hairiness, richness in flowers, size, and colour of the spikelets, 

 density of the panicle etc., and has been divided into a great number of forms, of 



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