Cyperaceae 



245 



culm, 3-4 mm. wide, soft, flattish, the basal sheaths bladeless 

 or short-bladed, partially dark purple or purplish brown, the 

 nerves pale green, areolate vs'ith transverse veinlets; spikes 2 

 or 3, widely distant, the terminal staminate, long-pedunculate, 

 15-20 mm. long, linear, purplish brown, the lateral pistillate, 

 oblong, 10-20 mm, long, loosely 5- to 13-fiowered, pendulous on 

 long capillary peduncles, the bracts short-bladed, long-sheath- 

 ing; pistillate scales ovate-elliptic, acuminate, pale; perigynia 

 longer than the scales, 5.5-6.5 mm. long, ovoid-fusiform, 

 3-angled, slenderly nerved, glabrous, yellowish green, the beak 

 long, slightly recurved, with an obliquely truncate hyaline tip; 



stigmas 3. May-June. Wet grassy places; Honshu (Karui- 



sawa in Shinano Prov.) ; rare. 



140. Carex filipes Fr. & Sav. Rhizomes short-creeping; 

 culms tufted, 30-50 cm. long, soft, acutely angled, glabrous; 

 leaf-blades thin and soft, flat, nearly glabrous, glaucous to 

 bright green, rather abruptly narrowed toward apex, the 

 basal sheatiis bladeless; spikes 3 or 4, distant, the terminal 

 staminate, the others pistillate, short-cylindric, very loosely 

 several-flowered, spreading to pendulous, the bracts leaflike, 

 long-sheathing; pistillate scales ovate, acuminate, pale, partially 

 dark reddish or brownish; perigynia nearly as long as the 

 scales, 5-6 mm. long, broadly ovoid-fusiform, glabrous, pale 

 green, membranous, weakly nerved, rather long-beaked, with 

 a truncate hyaline tip; stigmas 3. 



Var. filipes. Tama-tsuri-suge. Leaf-blades 2-4 mm. 

 wide, the sheaths dark reddish purple; staminate spike dark 

 purplish brown or sometimes pale, linear, 10-15 mm. long, 

 short- or rather long-peduncled, few-flowered, the pistillate 

 loosely several-flowered, the upper contiguous, the lower dis- 

 tant. Apr.-June. Woods or grassy places in hills and 



mountains; Honshu (n. distr., westw. to Kinki Distr.), Shi- 

 koku; rather common. 



Var. tremula (Ohwi) Ohwi. C. arisanensis var. tremula 



Ohwi; C. tremula (Ohwi) Ohwi Hime-juzu-suge. Plant 



smaller; leaf-blades narrow, short, abruptly acuminate to 

 acute; staminate spike broadly linear, very short, few-flowered, 

 inconspicuous. Apr.-May. Shikoku, Kyushu. 



Var. rouyana (Franch.) Kuekenth. C. rouyana Franch. 



O-TAMA-TsuRi-suGE. Plant larger; leaf-blades 3-7 mm. 



wide, the sheaths pale or brownish, rarely partially purplish 

 brown; staminate spike elongate, always long-peduncled and 

 surpassing the adjacent one.- — Apr.-June. Woods in moun- 

 tains and hills; Honshu (Kanto and westw. to Kinki Distr.). 



Var. arakiana (Ohwi) Ohwi. C. rouyana var. arakiana 



Ohwi; C. arahjana (Ohwi) Ohwi Hiro-ha-no-o-tama- 



TsuRi-sucE. Resembles the preceding variety, the leaves 

 usually living two years, 8-12 mm. wide, deep green, the basal 



leaf-sheaths at least partially dark sanguineous-purple. May. 



Honshu (Tango and Aki Prov.). 



141. Carex papulosa Boott. C. flectens Boott; C. grandi- 



squama Franch.; C. sckjmotoi Honda Ezo-tsuri-suge. 



Plant loosely tufted; culms soft, 30-50 cm. long, glabrous; leaf- 

 blades flat, flaccid, 3-7 mm. wide, grayish green, the basal 

 sheatiis stramineous, short-bladed; spikes 2 or 3, widely distant, 

 die terminal staminate, narrowly lanceolate, 1.5-3 cm. long, 

 long-peduncled, ferrugineous, the lateral pistillate, oblong, 

 long-peduncled, pendulous, the bracts short-bladed, long- 

 sheathing; pistillate scales elliptic, rounded and mucronate, 

 ferrugineous; perigynia longer than the scales, 5-6 mm. long, 

 erect, ovoid-fusiform, 3-angled, grayish brown, puncticulate, 

 faintly nerved, dull, glabrous, rather gradually long-beaked. 



widi a truncate tip; stigmas 3. June-July. Wet places; 



Hokkaido, Honshu (n. distr. southw. to Shimotsuke, Hitachi, 

 and Shinano Prov.), Kyushu; rare. Korea and Ussuri. 



142. Carex parciflora Boot var. parciflora. C. glchnii 

 F. Schmidt; C. jac\iana subsp. parciflora (Boott) Kuekenth.; 

 C. l{am!k,ochiana Nakai Guren-suge, "Glehn"-suge. Rhi- 

 zomes abbreviated or very shordy elongate, loosely to densely 

 tufted; culms 50-70 cm. long, soft, glabrous, acutely 3-anglcd; 

 leaf-blades flat, 5-10 mm. wide, soft, bright or yellowish green, 

 the sheaths pale; spikes 4 or 5, erect, the terminal staminate, 

 linear, pale, 1-1.5 cm. long, peduncled (sessile in forma 

 ochrolepis (Franch.) T. Koyama), the lateral pisdllate, dis- 

 tant, narrowly oblong, 1.5-3 cm. long, the lower long- 

 peduncled, the bracts leaflike, long-sheathing; pistillate scales 

 ovate, pale green; perigynia longer than the scales, 4-4.5 mm. 

 long, obliquely spreading, ovate-oblong, obtusely 3-angled, 

 membranous, glabrous, gradually long-beaked, with an ob- 

 liquely truncate hyaline tip; stigmas 3. June-July. Wet 



places in lowlands and mountains; Hokkaido, Honshu (n. 

 distr.). Sakhalin, and s. Kuriles. 



Var. macroglossa (Fr. & Sav.) Ohwi. C. macroglossa Fr. 

 & Sav.; C. jackjana subsp. parciflora var. mao'oglossa (Fr. & 

 Sav.) Kuekenth.; C. filipes var. oligostachys Kuekenth. pro 



parte, excl. synon. Ko-juzu-suge. Plant more slender; 



leaf-blades glaucous-green, usually narrower; pistillate spikes 



oblong, rather few-flowered, 1-1.5 cm. long; stigmas 3. 



Forma subsessilis Ohwi. Mugi-suge. Perigynia to 8 mm. 



long. Wet places in lowlands; Hokkaido, Honshu, Kyushu. 



s. Korea. 



Var. vaniotii (Lev.) Ohwi. C. vaniotii Lev.; C. gagaensis 



Akiyama Nagabo-no-ko-juzu-suge. Plant slender; leaves 



vivid green, 2-5 mm. wide; culms 20-30 cm. long; perigynia 

 suberect, obtusely angled, ovate-fusiform, narrower than in the 



typical phase. June-July. Wet places in subalpine regions; 



Honshu (n. and centr. distr., chiefly on die Japan Sea side) . 



143. Carex tumidula Ohwi. Iwaya-suge. Rhizomes 

 slender, long-creeping; culms 15-30 cm. long, glabrous; leaf- 

 blades linear, longer than the culms, 2-3 mm. wide, soft, flat, 

 the basal sheaths membranous, pale, usually indisdnctly 

 punctate-puberulent, the lower ones bladeless and ferrugineous, 

 the ligules oblique, ferrugineous; spikes 7-9, erect, 1-2 cm. 

 long, pedunculate, androgynous except the terminal one, fre- 

 quendy binate to ternate at each node, somedmes sparingly 

 branching at base, the pisdllate loosely 1- to 3-flowered, the 

 bracts leaf-like, with an inflated sheath at base, at least the 

 lowest one much longer than the inflorescence; scales of both 

 sexes nearly alike, oblong, very obtuse, pale ferrugineous; 

 perigynia 3 mm. long, ovate-rhomboid, 3-angled, mem- 

 branous, gray-green, inconspicuously nerved, abruptly nar- 

 rowed at each end, short-beaked, with an emarginate tip; 



stigmas 3, rather thick. Apr.-May. Mountains; Shikoku 



(lyo Prov.); rare. 



144. Carex siderosticta Hance. Tagane-s6. Rhi- 

 zomes creeping, elongate, slender; culms few, 10-40 cm. long, 

 with only a few sheaths at the base; leaves of sterile fascicles 

 with broadly lanceolate to lanceolate blades 1-3 cm. wide, thin, 

 soft, glabrous or sparsely puberulent, scabrous on margins; 

 spikes 4-8, androgynous, erect, short-cylindric, few-flowered, 

 1-2 cm. long, the bracts spathaceous, the sheath ampliate 

 above, usually bladeless; pisdllate scales oblong, obtuse, fre- 

 quendy brown-spotted; perigynia 3 mm. long, ellipsoidal, 

 3-angled, pale green, membranous, glabrous, slenderly nerved. 



