Kiikenth. Cyper.-Caricoid. in Engl. Pflanzenr. H. 38 (IV, 20, 1909) p. 225; Kiikenth. 

 Cyper. Sibir. in cpeRTOHKO, Max. <I)ji. Cii5. II (1912) p. 71; KptM. fpjr. Ajit. VI (1912) p. 1480. 

 Carex sibirica Spreng., Ledeb. Fl. Alt. IV p. 212. 



Scattered in humid places, peat-bogs, etc., in the subalpine taiga territory, between 

 Kushabar and Ust Algiac. 



Distribution: Northern and middle Europe, Siberia, northern Mongolia, eastern 

 Asia. 



Carex tenuiflora Wahlenb. in Vet-Akad. liandl. XXIV (1803) p. 147; Kiikenth. 

 Cyper.-Caricoid. in Engl. Pflanzenr. H. 38 (IV, 20, 1909) p. 224; Turczan. Cat. Baical. 

 no. 1219; Ledeb. Fl. Ross. IV, p. 282; Kiikenth. Cijper. Sibir. in cl)e;;iieiiKO, Mar. (P.j. Ch6. II 

 (1912) p. 70; Turczan. Fl. Baical.-Dahur. (1855, II) p. 311, no. 1240; KpLu. c&.t. Ajlt. 

 VI (1912) p. 1479. 



Scattered in subalpine woods about the river Amyl, as well as near Ust Algiac, in 

 moist, mossy soil. With ripe fruits in the second half of July. 



Distribution: Subarctic Europe and Asia, North America. 



Carex rigida Good, in Trans. Linn. Soc. II (1794) p. 193; Kiikenth. Cyper.-Caricoid. 

 in Engl. Pflanzenr. H. 38 (IV, 20, 1909) p. 299; Meinsh. in Act. Hort. Petropol. XVIII (1901) 

 p. 336 ex parte; Kiikenth. Cyper. Sibir. in ^catohko, Mux. (iM. Cii6. II (1912) p. 81; Kpti.i. 

 (I).i. A.iT. VI (1912) p. 1482. Carex saxalilis Wahlenb., Ledeb. Fl. Alt. IV, p. 223 ex parte; 

 Bunge, Enum. Alt. p. 83; Turczan. Cat. Baical. no. 1246; Karel. et Kiril. Enum. PI. Fl. 

 Alt. no. 896; Ledeb. Fl. Ross. IV, p. 309 ex parte; Turczan. Fl. Baical.-Dahur. (1855, 

 II) p. 338, no. 1250. 



In grassy and moss-grown places in the Altaian. The specimens are characteristic in 

 having the glumes equalling the perigynia, or, frequently, even longer, rather narrow 

 and acuminate, completely black, not wing-margined, arched in a boat-shaped way, with 

 a more or less distinct dorsal nerve. The dorsal nerve is never of a light, but of a dark 

 colour, like the glume. The spikes are rather loosely flowered, the lower one rather 

 distant and long-stalked. The leaves are of about the same length as the culms. It 

 recalls var. infiiscata, according to the description in Drejer, Revis. Caric. Bor. 

 (1841) p. 43, taken in north-eastern Siberia, on the rivers Lena and Kolyma. I have 

 had no opportunity of comparing with authentic material, and therefore dare not defi- 

 nitely refer it to this one. 



Distribution: Northern and middle Europe, northern and central Asia, arctic 

 America. 



Carex aquatilis Wahlenb. in Vet.-Akad. Nya Handl. XXIV (1803) p. 165; Kiikenth. 

 Cyper. Caricoid. in Engl. Pflanzenr. H. 38 (IV, 20, 1909) p. 309; Ledeb. Fl. Ross. IV, 

 p. 312; Kiikenth. Cyper. Sibir. in cPcatohko, Max. <[).i. Ch6. II (1912) p. 83; Epwji. cDji. Ajit. 

 VI (1912) p. 1484. 



147 



