242 



Cyperaceae 



119. Carex longerostrata C. A. Mey. C. longerostrata 



var. recurvifolia Kuekenth. Hie-suge, Matsumae-suge. 



Rhizomes tufted, with ascending short innovations; culms 

 slender, 20-40 cm. long; leaves somewhat flaccid, with flat 

 blades 2-3 mm. wide, much elongate after flowering, the basal 

 sheaths stramineous, early splitting into brown fibers; spikes 

 usually 2, the terminal staminate, clavate, 10-15 mm. long, 

 densely many-flowered, brownish, the lateral one pistillate, 

 ovoid to globose, about 10 mm. long and as wide, few- 

 flowered, the bracts short-bladed, short-sheathing, the pe- 

 duncle scarcely exserted from the sheath; pistillate scales nar- 

 rowly ovate, abrupdy short-awned, yellowish brown; perigynia 

 longer than the scales, obliquely spreading, 7-8 mm. long, 

 obovate-ellipsoid, yellowish green, inconspicuously nerved, 

 obsoletely 3-angled, abruptly long-beaked, bifid at apex; 



achenes without appendage at apex. ^May-July. Grassy 



slopes and thickets in mountains; Hokkaido, Honshu. e. 



Siberia, Korea, Sakhalin, and s. Kuriles. Forma pallida 



(Kitag.) T. Koyama. C. tenuistachya Nakai; C. tenuistachya 



var. pallida Kitag.; C. longerostrata var. pallida Ohwi 



Chuzenji-suge. With long-creeping rhizomes. Honshu, 



Kyushu. 



120. Carex lasiolepis Franch. C. adumana Makino 



Azuma-suge. Plant pilose throughout; rhizomes tufted, 



with ascending, short innovations; culms 5-15 cm. long, 

 slender, pilose; leaf -blades rather short, 3-5 mm. wide, flat, 

 soft, pilose, yellowish or pale green, the basal sheaths pilose, 

 pale, partially dark reddish, scarcely fibrous; spikes 3 or 4, 

 long-peduncled, 5-7 mm. long, the terminal staminate, nar- 

 rowly obovate, rather many-flowered, the others pistillate, 

 densely rather few-flowered, the lower ones usually radical 

 and nodding on elongate peduncles, the bract setaceous, 

 sheathing, pale; pistillate scales oblong, broadly rounded and 

 mucronate at the apex, dark reddish brown; perigynia much 

 longer than the scales, 4-4.5 mm. long, nearly erect, acutely 

 3-ang!ed, nerveless except for 2 costal nerves, with a thickened, 

 prominent stipe, abruptly short-beaked, the apex hyaline, 



minutely 2-toothed. Apr.-May. Shallow soil over rocks in 



mountains; Hokkaido (Mount Apoi), Honshu (n. and centr. 

 distr.), Kyushu (n. distr.). 



121. Carex hashimotoi Ohwi. Sayama-suge. Rhi- 

 zomes tufted; culms hidden among the leaves, 5-10 cm. 

 long, slender; leaf-blades fresh green, soft, flat, 3-5 mm. wide, 

 the sheaths pale; spikes 3 or 4, the terminal staminate, pe- 

 duncled, pale green, the others pistillate, short-cylindric to 

 oblong, 5- to 10-flowered, all but the uppermost radical, the 

 bract on the culm sheathing, short-pointed; pistillate scales 

 obovate-elliptic, broadly rounded, pale; perigynia twice as long 

 as the scales, 4 mm. long, acutely 3-angIed, very weakly 

 nerved, pale green, membranous, sparsely puberulent, grad- 

 ually narrowed to a stipelike base nearly as long as die body, 

 rather abruptly short-beaked, with a minutely 2-toothed hya- 

 line apex; stigmas 3, short. Apr.-May. Honshu (Omi, 



Mino, Hida and s. Shinano Prov.) ; rare. 



122. Carex quadriflora (Kuekenth.) Ohwi. C. digitata 

 var. pallida Meinsh.; C. digitata subsp. quadriflora Kuekenth. 

 Aka-suge. Rhizomes short-creeping to ascending, form- 

 ing loose tufts; culms 10-20 cm. long, slender, soft, with a 

 reddish brown bladeless sheath at base; leaf -blades flat, soft, 

 glabrous, deep green, 2-4 mm. wide, the sheaths dark red; 

 spikes 3 or 4, the terminal staminate, short-linear, 7-10 mm. 



long, few-flowered, the upper lateral ones longer, the others 

 pistillate, approximate, 1-2 cm. long, very loosely few-flowered 

 on a flexuous axis, the peduncles nodding above, the bracts 

 bladeless, the sheath elongate, tubular, reddish brown; pistil- 

 late scales obovate, truncate, reddish, clasping at base; peri- 

 gynia much longer than the scales, 4.5-5 mm. long, acutely 

 3-angled, eUipsoidal, sparsely short-pubescent, nerveless except 

 for 2 costal nerves, with a prominent, thickened stipe shorter 

 than the body, abruptly short-beaked, with a ferrugineous, en- 

 tire, membranous mouth; stigmas 3, slender, short. Hok- 

 kaido (Mount Kitami-fuji) ; rare. Korea, Manchuria, and 



Ussuri. 



123. Carex humilis Leyss. var. nana (Lev. & Van't.) 

 Ohwi. C. humilis sensu auct. As. Orient., non Leyss.; C. 



lanceolata var. nana Lev. & Van't.; C. nanella Ohwi ^Ho- 



soba-hikage-suge, Hime-hikage-suge, Hinata-suge. Rhi- 



zomes densely tufted; culms smooth, hidden among the leaves, 

 3-6 cm. long; leaf-blades filiform, ciliate-hispidulous, elongat- 

 ing after anthesis, 0.5-1.5 mm. wide, the basal sheaths partly 

 reddish, splitting into brown fibers, these thinly covering the 

 neck of the rhizome; spikes 2-4, erect, the terminal staminate, 

 5-10 mm. long, few-flowered, longer than the lateral pistil- 

 late ones, the pistillate ovoid, few-flowered, 5-7 mm. long, 

 the bracts spathaceous, bladeless, broadly hyaline-margined; 

 pistillate scales ovate, acute, hyaline, pale to partially reddish, 

 clasping the rachis at base, broadly scarious-margined; peri- 

 gynia slightly shorter than the scales, nearly orbicular, 3 mm. 

 long, indistincdy trigonous, obsoletely thick-nerved, rather 

 densely pubescent, with a rather short oblique thick stipe, 



abruptly very short-beaked, with a ferrugineous entire tip. 



Mar.-May. Shallow soils over rocks or in open woods in 

 hills and low mountains; Hokkaido, Honshu, Shikoku, Kyu- 

 shu. Korea. The typical phase occurs in Europe and Si- 

 beria. 



Var. callitrichos (V. Krecz.) Ohwi. C. callitrichos V. 



Krecz. Ito-hikage-suge. Leaves involute, capillary, less 



than 0.5 mm. wide; staminate spike many-flowered, ellipsoidal. 



Kyushu (Tsushima). s. Kuriles, Korea to Ussuri and 



Manchuria. 



124. Carex lanceolata Boott. C. longisquamataMsmsh.; 

 C. delicatula C. B. Clarke; C. yesoensis Koidz.; C. subpedi- 



jormis Suto & Suzuki Hikage-suge. Rhizomes densely 



tufted, the neck with brown fibers; culms 10-40 cm. long, 

 slightly scabrous above; leaf-blades linear, flat, 1.5-2 mm. wide, 

 scabrous, the basal sheaths partly reddish brown, scaberulous, 

 splitting into parallel fibers; spikes 3-6, erect, the terminal 

 pistillate, linear-clavate, 10-15 mm. long, ratiier few-flowered, 

 shorter or slightly longer than the lower ones, the lateral spikes 

 pistillate, short-cylindric, 1-2 cm. long, the upper approximate, 

 the lower distant, loosely flowered, the lower bracts spatha- 

 ceous, bladeless, broadly hyaline-margined; peduncles scarcely 

 exserted from the sheath; pistillate scales ovate, acute, fer- 

 rugineous to castaneous, rarely pale, with broadly scarious 

 margins; perigynia shorter than the scales, obovoid, 3 mm. 

 long, many-ribbed, densely pubescent, with a thick oblique 

 stipe, die beak extremely short, ferrugineous, slightly re- 

 curved with an entire tip. Apr.-June. Open woods in 



hills and mountains; Hokkaido, Honshu, Shikoku, Kyushu; 

 common. ^Korea, Manchuria, and Ussuri. 



125. Carex grallatoria Maxim. Hina-suge. Rhizomes 

 slender, short, with ascending innovations; culms slender. 



