Cyperaceae 



241 



rowly ovoid, gradually long-beaked. Kyushu (Yaku- 



shima) ; rare. 



Var. temnolepis (Franch.) Ohwi. C. temnolepis Franch.; 

 C. joliosissima var. temnolepis (Franch.) Kuekenth.; C. \i71- 



pol^usanensis Akiyama Hosob.v-kan-suge. Leaves 3-5 



mm. wide; pistillate spikes densely flowered; beak of the 



perigynia usually scabrous on the margins. May-June. 



Woods in mountains; Honshu (Ugo Prov. to Tanba, mainly 

 on the Japan Sea side). 



113. Carex foliosissima F. Schmidt var. foliosissima. 

 C. morroivii sensu auct. Japon., pro parte, non Boott; C. 

 yesanensis Franch.; C. crassicatilis Franch.; C. niigatensis 

 Koidz.; C. morrowii subsp. joliosissima (F. Schmidt) Ohwi 



Oku-no-kan-suge. Rhizomes short-creeping, in loose 



tufts; culms smooth, obtusely angled, 15-40 cm. long; leaf- 

 blades flat, stiff to rather soft, 5-10 mm. wide, scabrous or 

 slightly so, 2-ribbed on upper surface, the basal sheaths dark 

 brown to dark reddish brown, dull; spikes 3-5, loosely ar- 

 ranged, on erect exserted peduncles, the terminal staminate, 

 linear, 1.5-3 cm. long, the others pistillate, short-cylindric, 

 2-3 cm. long, densely many-flowered, the bracts very short- 

 bladed, widi prolonged inflated sheaths; pistillate scales ovate, 

 abruptly cuspidate, reddish brown to pale green; perigynia 

 spreading, broadly obovoid, light yellow-green, 2.5-3.5 mm. 

 long, glabrous, nerved, with a rather long recurved beak, 



acutely 2-toothed at tip; stigmas 3. Woods in mountains; 



Hokkaido, Honshu, Kyushu; common. Sakhalin. 



Var. latissima (Ohwi) Akiyama. C. morrowii subsp. 



joliosissima var. latissima Ohwi Hab.^biro-suge. Leaves 



15-20 mm. wide. Especially abundant in mountains on 



the Japan Sea side of Honshu. 



114. Carex matsumurae Franch. C. taquetii Lev.; C. 



viridissima Nakai Ki-no-kuni-suge, Kishu-suge. Plant 



densely mfted forming large clumps; culms many, 30-40 cm. 

 long, glabrous; leaves evergreen, with flat, thick, deep green, 

 lustrous, smooth blades, 8-12 mm. wide, the basal sheaths pale 

 green with brown nerves; spikes 4 or 5, distant, light green, 

 the upper somewhat approximate, the terminal staminate, 

 broadly linear, 3-5 cm. long, the lateral pistillate, cylindric, 

 25-35 mm. long, densely many-flowered, erect on exserted 

 peduncles, the bracts short, with a long sheath; pistillate 

 scales ovate, pale green; perigynia much longer than the scales, 

 4-5 mm. long, nearly erect, obovate, pale green, glabrous, bi- 

 convex, several-ribbed, short-beaked, with a membranous 

 emarginate tip; beak of achenes with annulate base; stigmas 2. 



Mar.-May. Evergreen woods near seacoasts; Honshu 



(Etchij, Shima Prov., and wesrw.), Shikoku, Kyushu. s. 



Korea. 



115. Carex hachijoensis Akiyama. Hachij6-k.\n-suge. 

 Rhizomes tufted, sometimes creeping; culms 20-40 cm. long, 

 3-angled, almost smooth; leaves longer than the culms, the 

 blades 6-7 mm. wide, rather thick, green, nearly glabrous, 

 long-attenuate, the basal sheaths light brown, sparingly fibrous 

 when withered or old; spikes 3 or 4, the terminal staminate, 

 hnear, light brown, 2.5-3 cm. long, 2-2.5 mm. across, the 

 lateral pistillate, erect, linear-cylindric, 1.5-2 cm. long, with a 

 few staminate flowers at the apex, 5 mm. thick, the peduncles 

 nearly included, the bracts spathaceous, 7-15 mm. long, pale 

 green, with a setaceous short blade; pistillate scales oblong, 

 very obtuse and mucronate, pale and slightiy tinged with red, 

 the midrib green, 3-ner\-ed; perigynia about 3.5 mm. long, 

 ovoid to ellipsoid, trigonous or lenticular, glabrous, pale green. 



many-ribbed, the beak smooth, short, hyaline, subenrire; 

 achenes narrowed above and crowned by a depressed disc 

 about 0.7 mm. across at apex; stigmas (2-) 3. June. Hon- 

 shu (Hachijo Isl. in Izu). 



116. Carex laticeps C. B. Clarke. C. hancei C. B. Clarke 



O-mugi-suge. Prominendy pilose throughout; rhizomes 



short-creeping; culms 30-50 cm. long; leaf-blades 3-5 mm. 

 wide, rather soft, cinereous-green, witii whitish hairs, the 

 basal sheaths stramineous, dull; spikes 2 or 3, distant, the 

 terminal staminate, linear-clavate, 2-3 cm. long, rusty-brown, 

 on a long-exserted peduncle, the others pistillate, oblong to 

 oblong-cylindric, 2-3 cm. long, about 10 mm. thick, the bracts 

 short, leaflike, long-sheathing, the peduncles nearly included; 

 pistillate scales oblong, cuspidate, whitish; perigynia longer 

 than the scales, 5-6 mm. long, obliquely spreading, yellowish 

 green, pilose, nerved, the beak long, erect, acutely 2-toothed; 

 achene constricted on the angles near the middle, obliquely 



beaked; stigmas 3. Honshu (Bingo and Bitchu Prov.); 



rare. Korea and China. 



117. Carex insaniae Koidz. C. jauriei Franch. 



Hiroba-suge. Rhizomes loosely tufted; culms 5-40 cm. 

 long; leaf-blades flat, rather thick, glabrous, deep green, 

 broadly hnear, 8-12 mm. wide, the basal sheaths pale; spikes 

 2-4, the terminal linear-clavate, 1-2 cm. long, the others pistil- 

 late, oblong, peduncled, rather densely flowered, the lowest 

 bract leaflike, long-sheathing; pistillate scales elliptic, rounded 

 at the apex and mucronate, pale green; perigynia longer than 

 the scales, 5-6 mm. long, obliquely spreading, broadly ellipsoid, 

 loosely pubescent, inconspicuously 3-angled, green, abruptiy 

 short-beaked, with a hyaline emarginate tip; achenes ellipsoid, 

 with a short annulate beak, 3-angled, each angle with a con- 

 striction near the middle; stigmas 3. May-June. Woods 



and thickets in low mountains; Hokkaido, Honshu (Japan Sea 

 side in n. and centr. distr.). s. Kuriles. 



Var. papillaticulmis (Ohwi) Ohwi. C. papillatictdmis 



Ohwi AoEA-suGE. Leaves 4-8 mm. wide; terminal spike 



linear; perigynia rather long-beaked. Honshu (Pacific side 



of centr. part and Kinki Distr.), Shikoku, Kyushu. 



Var. subdita (Ohwi) Ohwi. C. subdita Ohwi; C. nan- 

 l{aiensis Honda; C. kjyozumiensis Akiyama; C. tosana Ma- 

 kino Ao-HiE-suGE. Plant slender; leaf-blades 2-4 mm. 



wide, paler green; perigynia 5-6 mm. long. Woods on 



hillsides; Honshu (Tokaido and s. Kinki Distr.), Shikoku. 



118. Carex boottiana Hook. & Arn. C. bongardii 

 Boott; C. stttpenda Lev. & Van't.; C. oahuensis var. boottiana 



(Hook. & Arn.) Kuekenth. Hige-suge, O-hige-suge, Iso- 



SUGE. Rhizomes densely tufted, forming large clumps, 

 with ascending short innovations; culms few to rather many, 

 30-50 cm. long; leaf-blades stiff, coriaceous, lustrous, 5-10 mm. 

 wide, the margins revolute and prominently scabrous, the 

 basal sheaths castaneous, splitting into brown fibers; spikes 

 3-6, the terminal staminate, thick-clavate, 3-6 cm. long, 

 densely many-flowered, castaneous, the lateral androgynous, 

 short-cylindric, densely many-flowered, peduncled, the lower 

 bracts leaflike, long-sheathing; pistillate scales oblong, dark 

 or yellowish brown, emarginate and awned; perigynia 5-6 

 mm. long, obliquely spreading, oblong-elliptic, somewhat 

 coriaceous, indistinctly 3-angled, glabrous, many-nerved, with 

 a rather long deeply bifid beak, the teeth slightiy curved; 

 achenes witii a curved beak; stigmas 3. Rocks near sea- 

 coasts; Honshu (Noto and Awa Prov. westvv.), Shikoku, 

 Kyushu. s. Korea, Ryukyus, China, and Bonin Isls. 



