Generally accompanying the main species. The perigynia frequently sterile. The 

 intermediate forms seemed sometimes to approach one, sometimes the other of the 

 parents, and at times to be intermediate between them. 



Carex caespitosa L. Spec. PI. ed. II (1763) p. 1388; Kiikenth. Cyper.-Cancoid. in Engl. 

 Pflanzenr. H. 38 (IV, 20, 1909) p. 328; Ledeb. Fl. Alt. IV, p. 222; Turczan. Cat. Baical. 

 no. 1263; Ledeb. Fl. Ross. IV, p. 310; Turczan. Fl. Baical.-Dahur. (1855, II) p. 337, no. 

 1248; Kiikenth. Cyper. Sihir. in $e.;i;neiiKO, Max. $.1. Ch6. II (1912) p. 90; KpMji. cDji. Ajit. VI 

 (1912) p. 1489. 



Very common in the territory explored, where occurring in a multitude of rather 

 different forms, which hardly posses any systematical value, connected as they are by 

 intermediate forms. Frequent in moist places on the rivers Yenisei, Abakan, and Amyl. 

 Near Ust Algiac, in moist meadows and swamps in woods, I have gathered a well-grown, 

 vigorous form, with culms from 80 to 90 cm.high, with 1 staminate spike, and 2 to 3 pistil- 

 late spikes, about 2 cm. long, and from 0,5 to 0,6 cm. broad, of which the lower one is 

 shortly stalked, the upper one or the upper ones sessile. Growing in large tussocks, 

 from 0,5 to 1 m. high. This one may be identical with /. major, Peterm. in Flora 

 XXV (1844) p. 33. 



Distribution: Northern and middle Europe, south-western Asia, Siberia, northern 

 Mongolia, eastern Asia. 



Carex Goodenoughii Gay X Carex caespitosa L., Appel, in Jahresber. Schles. Ges. 

 (1892) p. 158; Kiikenth. Cyper.-Caricoid. 1. c. (1909) p. 377. 



Scattered among both the main species on the islets in the river Abakan, near 

 Askys. Perigynia empty. 



Distribution: Previously observed in northern Europe. 



Carex atrata L. Spec. PI. ed. II (1763) p. 1386; Kiikenth. Cyper.-Caricoid. in Engl. 

 Pflanzenr. H. 38 (IV, 20, 1909) p. 396; Kiikenth. Cyper. Sibir. in ^eflieHKo, Max. $.1. C116. 

 II (1912) p. 107; Ledeb. Fl. Alt. IV, p. 214; Turczan. Cat. Baical. no. 1229; Karel. et 

 Kiril. Enum. PL Fl. Alt. no. 891; Ledeb. Fl. Ross. IV, p. 287; Turczan. Fl. Baical.-Dahur. 

 (1855, II) p. 336, no. 1247; Kpbijr. $.1. Ajit. VI (1912) p. 1495. 



Of rather frequent occurrence in the Altaian, at a height of about 2000 — 2200 m. 

 above sea-level, where taken by me with young fruits at the end of July. The specimens 

 collected seemed in many respects to approach Carex nigra All., especially so in their 

 narrower leaves, only 2 to 3 mm. broad, moreover, in their spikes densely congested 

 in a head, consisting of 3 to 4 rather coarse, ovoid spikes, which are more or less 

 erect, and very shortly stalked. The lower stalks are generally from 2 to 3 mm. long, 

 the upper spikes sessile, or nearly so. The bracts are shorter, sometimes nearly 

 setaceous, never reaching above the summit of the head. The glumes are shorter than the 

 perigynia, to equalling them, never longer, a character recalling Carex nigra. The perigynia 



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