Carex Arnellii Christ apud Scheutz, Plant. Vascul. Jenis. p. 177 in Svensk Vet. 

 Akad. Handl. N. F. XXII (1887); Kiikenth. Cyper.-Caricoid. in Engl. Pflanzenr. H. 38 

 (IV, 20, 1909) p. 609; Kiikenth. Cyper. Sibir. 

 in 4>eAqeHK0, Max. $ji. Ch6. II (1912) p. 159; 

 KpBijt. 4)ji. Ajit. VI (1912) p. 1519. Carex 

 Turczaninowiana Meinsh. Cyperac. d. Fl. 

 Russl. p. 363. Carex sylvatica /8 Turczan. 

 Fl. Baical.-Dahur. (1855, II) p. 344, no. 1260. 

 Carex sylvatica Huds., Ledeb. Fl. Alt. IV, p. 

 230; Ledeb. Fl. Ross. IV, p. 295 ex parte. 

 Carex Drymeja Turczan. Cat. Baical. no. 1249. 



The specimens collected are distinguish- 

 ed by having the pistillate spikes, especially 

 the lower ones, very loosely flowered, f. 

 sparsa Kukenth. 1. c. (1912) p. 161. The 

 distance between the lower flowers in the 

 spike is to 1 cm. The terminal staminate 

 spike is 2 to 2,5 cm. long, on slender, fre- 

 quently slightly relaxed peduncles, 2 to 3 

 cm. long. The upper pistillate spikes now 

 and then androgynous, with staminate flo- 

 wers at the summit. The glumes of the 

 pistillate spikes are very short, about 2 mm. 



long, broadly ovate, with a very long and produced, narrow midrib, to 9 or 10 mm. 

 long, rough along the margin, f. longearisiata Komarow, $.i. MaHtiiyKyplH I (1901) p. 

 378. The central part of the glume and the drawn out midrib are green, for the 

 rest membranous. The perigynia on each side with a distinct lateral nerve, which is 

 continued upwards in the beak. The perigynia, including the beak, are from 6 to 7 ram. 

 long, and projecting far beyond the glume itself, which is only 2 mm. long, and 1,5 mm. 

 broad. The leaves along the margin and on the midrib rather rough. The nut is triquet- 

 rous, with concave sides, from 2 to 2,5 mm. long, with a long, generally fragile style. 

 The specimens taken in the first half of June are in flower, and partly past flowering. 



Scattered in thickets of foliferous trees along the Yenisei, and in moist thickets 

 on the islets, near Ust Abakansk. 



Distribution: Northern and eastern Asia. 



Fig. 82. Carex Arnellii Christ /. longearisiata 



KoMAR. (%). a. Glume. — b. Pistillate flower 



with incipient fruit formation. — c. Nut. 



Carex diluta Marsch.-Bieb. Fl. Taur.-Cauc. II (1808) p. 388 et III (1819) p. 614; 

 Kukenth. Cyper.-Caricoid. in Engl. Pflanzenr. H. 38 (IV, 20, 1909) p. 659; Turczan. Cat 

 Baical. no. 1251; Karel. et Kiril. Enum. PI. Fl. AU. no. 898; Ledeb. Fl. Ross. IV, p. 299; 

 Meinsh. Cyper. Fl. Russl. (1901) p. 382; Kiikenth. Cyper. Sibir. in ^eaiCHKO, Mar. <L\i. 



162 



