Cyperaceae 



249 



mm. wide, approximate, simple, pcduncled, ascending to 

 nearly erect, the bracts bristle-shaped, short-sheathing; pistillate 

 scales ovate, pale, reddish brown, hyaline; perigynia much 

 larger than the scales, 3-3.5 mm. long, obovate-elliptic, promi- 

 nently nerved, abruptly short-beaked; stigmas 2, shorter than 



the perigynium. Aug.-Oct. Rocky open woods or sandy 



places; Honshu (Sendai and southwestw.), Shikoku; rare. 

 Korea and China. 



Var. lenta. C. Icnta D. Don; C. sendaica var. nakiri (Ohv\'i) 



T. Koyama; C. brunnea var. nakiri Ohwi Nakiri-suge. 



Rhizomes short, forming a large clump; basal sheaths dark 

 brown, lustrous; leaves very stiff, deep green, conduplicate; 

 spikes numerous, androgynous, oblong-cylindric, 5-20 mm. 

 long, 3.5^ mm. thick, unbranched or with branching pedun- 

 cles solitary to binate on each node, the bracts (at least the 

 lower ones) elongate, leaflike, over-topping the inflorescence; 



perigynia broadly elliptic, prominendy nerved. Aug.-Nov. 



Open woods on hillsides; Honshu (Rikuzen, Etchu, and 



wesr^v.), Shikoku, Kyushu; quite common. s. Korea, 



China, and the Himalayas. 



Var. pseudosendaica T. Koyama. Sendai-suge-modoki. 

 Intermediate between the typical phase and var. sendaica; rhi- 

 zomes long-creeping; spikes usually 5-8, unbranched, all 

 androgynous. Honshu (Mikawa Prov.). 



170. Carex autumnalis Ohwi. O-nakiri-suge. Some- 

 what resembles C. lenta var. lenta; rhizomes loosely 

 tufted; culms 70-80 cm. long; leaf-blades stiff, 2.5-3 mm. 

 wide, the basal sheaths dark brown; spikes about 10, the ter- 

 minal staminate, nearly sessile, 15-20 mm. long, the lateral 

 androgynous, broadly linear, loosely flowered, 1-3 cm. long, 

 the upper ones nearly sessile, solitary, the lower frequently 

 paired on unequal long peduncles, the bracts long-sheathing, 

 the lowest one with a short bristlelike blade at die tip; 

 perigynia about twice as long as the scales, about 3 mm. long, 

 elliptic, faintly nerved, very sparsely hispidulous especially on 

 the upper part, or nearly glabrous, the beak short, emarginate; 



stigmas 2, about 2 mm. long. Sept.-Oct. Honshu (Yamato 



Prov. and Chugoku Distr.), Shikoku (Awa); rare. Ryu- 



kyus. 



171. Carex nachiana Ohwi. Kishu-nakiri-suce. Re- 

 sembles C. lenta var. lenta, but larger; culms tufted, to 1 

 m. long; leaves 3-4 mm. wide, deep green; spikes numerous, 

 androgynous, solitary to ternate at each node, often sparsely 

 branching below, loosely rather many-flowered, 1.5-3 cm. long, 

 the lower bracts leaflike, long-sheathing; pistillate scales acute; 

 perigynia nearly as long as the scales, suberect, elliptic to 

 broadly ovate, 3.5-4 mm. long, about 1.5 mm. wide, glabrous, 

 minutely hispidulous-scabrous on the margins, short-stipitate, 

 moderately long-beaked, with a minutely 2-toothed hyaline 



tip; stigmas 2, about 3 mm. long. Sept.-Oct. Woods; 



Honshu (Kii Prov. and Oki Isl.), Kyushu (Kagoshima in 

 Satsuma Prov. and Yakushima) ; rare. China. 



172. Carex sacrosancta Honda. C. kasugayamensis 

 Akiyama Jingu-suge, Hime-nakiri-suge. Somewhat re- 

 sembles but more slender than C. lenta var. lenta; culms 

 20-40 cm. long, slender; leaf-blades 1-3 mm. wide; spikes 4-6, 

 androgynous, linear-cylindric, loosely flowered, simple, soli- 

 tary or paired at each node, 1-2.5 cm. long, the lower bracts 

 leaflike, sheathing; pistillate scales oblong, rather obtuse, fer- 

 rugineous; perigj'nia longer than the scales, elliptic, 4 mm. 

 long, less than 1.5 mm. wide, faintiy nerved, loosely his- 



pidulous on the nerves, stipitate, rather long-beaked, minutely 

 2-toothed at tip; stigmas filiform, shorter than the perigynia. 



Sept.-Oct. Honshu (Miyakejima, Ise, and Yamoto Prov.), 



Shikoku, Kyushu; rare. 



173. Carex teinogyna Boott. C. scabrictdmis Ohwi; C. 



teinogynia var. scabrictdmis Kuekcnth. Fusa-nakiri-suge. 



Rhizomes tufted; culms 40-60 cm. long, nodding above; leaf- 

 blades rather flat, 2-3.5 mm. wide, the basal sheaths brown; 

 spikes numerous, dense, androgynous, 2- to 5-nate, linear, 

 loosely flowered, peduncles often sparsely branching, the lower 

 bracts leaflike, sheathing; pistillate scales narrowly oblong, 

 acuminate, ferrugineous; perigynia nearly as long as the scales, 

 3.5^ mm. long, erect, elliptic, faintly nerved, minutely his- 

 pidulous on the margins, rather long-beaked, with a minutely 

 2-toothed hyaline tip; stigmas persistent, very slender and 



much-elongate, 6-8 mm. long. Aug.-Oct. Wet rocks along 



ravines and streams; Honshu (s. Kinki and Chiigoku Distr.), 



Shikoku, Kyushu; locally abundant. s. Korea and China to 



India and Malaysia. 



174. Carex metallica Lev. C. pachinensis Hayata 



Fusa-suge, Shiraho-suge. Plant densely tufted, forming 



large clumps; culms 30-60 cm. long, glabrous, nodding above; 

 leaf-blades flat, stiff, deep green, lustrous above, 3-6 mm. wide, 

 the basal sheaths pale, ultimately splitting into copious brown 

 fibers covering the neck of the rhizomes; spikes 5-10, approxi- 

 mate, the terminal gynecandrous and clavate-cylindric, or 

 merely staminate and broadly hnear, the lateral pistillate, the 

 upper ones with a few staminate flowers at base thick-cylindric, 

 2-5 cm. long, peduncled, solitary or paired, nodding, the 

 lower bracts leaflike, much longer than the culm, sheathing; 

 pistillate scales narrow-ovate, acuminate and cuspidate, pale; 

 perigynia twice as long as the scales, about 7 mm. long, 

 ascending, narrowly ovoid, light yellowish green, lustrous, in- 

 flated and loosely inclosing the achene, slenderly nerved, sca- 

 brous at tip, rather long-beaked, with a hyaline tip; stigmas 3, 



short. Apr.-May. Near seashores; Honshu (Harima 



Prov.), Shikoku, Kyushu. s. Korea, Ryukyus, and Formosa. 



175. Carex macrandrolepis Lev. C. distantiflora Na- 



kai; C. sharyotensis Hayata Kata-suge. Rhizomes loosely 



to scarcely tufted, the neck covered with dark brown straight 

 fibers; culms 15^0 cm. long, slender, glabrous; leaf-blades 2-3 

 mm. wide, flat, soft, bright to yellowish green; spikes 3 or 4, 

 distant, or the upper ones approximate, the terminal staminate, 

 linear, long-peduncled, 1-3 cm. long, pale brownish yellow, 

 the lateral pistillate, oblong, about 1 cm. long, somewhat 

 loosely few-flowered, peduncled, the lowest one sometimes 

 radical, the bracts leaflike, short- to somewhat long-sheathing; 

 pistillate scales obovate, rounded or emarginate and cuspidate, 

 pale; perigynia longer than die scales, 5-6 mm. long, ascend- 

 ing, rhomboid, acutely 3-angled, yellowish green, lustrous, 

 sparsely hispidulous, subcoriaceous, with 2 costal nerves, the 



beak short, erect, with a 2-toothed, hyaline tip. Dry grassy 



places on hills and in lowlands; Honshu (Suruga Prov. to 

 Kinki Distr.), Kyushu; rather rare. Formosa and Korea. 



176. Carex hondoensis Ohwi. C. arncllii sensu auct. 

 Japon., non Christ; C. arncllii var. hondoensis (Ohwi) T. 



Koyama Arzu-sucE. Rhizomes decumbent or ascending, 



densely covered with pale brown fibers; culms 50-70 cm. long, 

 nodding above; leaf-blades 3-4 mm. wide, flat, soft; spikes 4 or 

 5, the upper 2 or 3 staminate, approximate, narrowly lanceo- 

 late, 1-2 cm. long, obscurely tawny, the others pistillate, 2-5 



