140 



Gramineae 



pilose below; leaf-sheaths glabrous, without oral setae; pe- 

 duncles elongate, panicles often nodding, 7-12 cm. long; spike- 

 lets few, pedicelled, broadly linear, purplish, densely flowered; 



florets 8-10 mm. long. Hokkaido, Honshu (centr. distr. 



and northw.). 



7. Sasa kurilensis (Rupr.) Makino & Shibata. Arundi- 

 naria \urilensis Rupr.; Bambusa \urilensis (Rupr.) Miyabe; 



Pseudosasa \urilensis (Rupr.) Makino Chishimazasa. 



Culms 1-2 m. long, sometimes smaller, glabrous, branched; 

 culm-sheaths glabrous; leaves 2-4, the blades narrowly oblong, 

 5-20 cm. long, 1-4 cm. wide, lustrous above, glabrous; culm- 

 sheaths glabrous, usually without oral setae; panicles ovate; 

 peduncles usually only slightly longer than the reduced leaf- 

 blades; spikelets few, purplish, 15-25 mm. long, densely 3- to 

 5-flowered, with 2 small glumes (sometimes 1) at base; lemmas 

 7-11 mm. long, minutely ciliate. High mountains; Hok- 

 kaido, Honshu (centr. distr. and northw.). ^Kuriles, Sakha- 

 lin, and Korea (Dagelet Isl.). 



Var. uchidae (Makino) Makino. S. uchidae Makino; 



Pseudosasa uchidae (Makino) Makino ^Nagaba-nemagari- 



DAKE. Blades 5-7, narrowly oblong to lanceolate. Hok- 

 kaido, Honshu (centr. distr. and northw.). 



8. Sasa japonica (Sieb. & Zucc.) Makino. Arundinaria 

 japonica Sieb. & Zucc; A. meta\e Nichols.; Pseudosasa ja- 

 ponica (Sieb. & Zucc.) Makino; Yada\eya japonica (Sieb. & 



Zucc.) Makino Yadake. Culms 2-5 m. long, 5-15 mm. 



in diameter, glabrous, erect; nodes not elevated; internodes 

 slender; culm-sheaths persistent, elongate; branches solitary 

 on upper part of the culm; leaf-blades approximate, narrowly 

 lanceolate, 8-30 cm. long, 1-4.5 cm. wide, glabrous, long- 

 acuminate, acute at base, deep green above; leaf-sheaths gla- 

 brous, sometimes purplish, the oral setae often wanting; 

 panicles 8-15 cm. long, spikelets about 10, linear, purplish; 

 glumes acuminate, the first 5-8 mm. long, the second 7-10 

 mm. long; lemmas narrowly ovate, 10-12 mm. long, acute, 



scaberulous above; palea 8-12 mm. long, with ciliate keels. 

 May-Nov. Honshu, Shikoku, Kyushu. s. Korea. 



9. Sasa owatarii (Makino) Makino. Arundinaria owa- 

 tarii Makino; Yada\eya owatarii (Makino) Makino; Pseu- 

 dosasa owatarii (Makino) Makino ^Yakushimadake. 



Culms 50-100 cm. long, 2-5 mm. in diameter, branched in 

 upper part, nodes not elevated; culm-sheaths glabrous; leaf- 

 blades rather thick, narrowly lanceolate, 5-12 cm. long, 5-10 

 mm. wide, yellowish green, with well-elevated veinlets, long- 

 acuminate, acute to obtuse at base; leaf-sheaths glabrous, the 

 oral setae wanting; panicles terminal on leafless branchlets, 

 3-5 cm. long; peduncles glabrous; spikelets oblong, 3- to 

 5-flowered, 1-1.5 cm. long, on ascending pedicels; glumes ob- 

 tuse, the first 2-3 mm., the second 4-5 mm. long; lemmas 5-7 

 mm. long, rather obtuse, short-mucronate; palea obtuse, with 

 2 ciliate keels. High mountains; Kyushu (Yakushima). 



10. Sasa borealis (Hack.) Makino. Bambusa borealis 

 Hack.; Arundinaria purpurascens Hack.; S. spiculosa Makino, 

 excl. syn.; Pseudosasa spiculosa Makino, excl. syn.; P. pur- 

 purascens (Hack.) Makino; Sasamorpha purpurascens (Hack.) 

 Nakai; Sasamorpha purpurascens var. borealis (Hack.) Nakai; 

 Sasa purpurascens (Hack.) E. G. Camus; Sasa purpurascens 



var. borealis (Hack.) Ohwi Suzu, Jidake. Culms 1-2 m. 



long, 3-6 mm. in diameter; nodes not prominendy elevated; 

 leaf-blades oblong-lanceolate, 10-30 cm. long, 1-6 cm. wide, 

 gradually acuminate, abruptly acute at base, rather lustrous 

 above, usually glabrous; panicles long-peduncled, 8-15 cm. 

 long, often purplish, usually with a whitish bloom; pedicels 

 yellowish pilose, spikelets ascending; glumes unequal, acumi- 

 nate, several-nerved, often ciliate, simulating the lemmas in 

 texture, the first 5-10 mm., the second 8-11 mm. long; lemmas 

 7-10 mm. long, coriaceous, puberulent, often ciliate; palea 

 slightly shorter than the lemma, short-ciliate on the keels, 

 rachilla-joints short, short-pubescent, about 1/5-1/4 as long as 

 the lemma. Hokkaido, Honshu, Shikoku, Kyushu. 



8. ALOPECURUS L. Suzume-no-teppo Zoku 



Annual or perennial herbs; leaf-blades linear, flat; upper leaf-sheath often slighdy inflated; panicles cylindric, dense, with very 

 short branches; spikelets laterally flattened, 1-flowered, falling entire; glumes equal, strongly folded, usually pubescent on the 

 keel, more or less connate at base; lemmas shorter than to as long as the glumes, 5-nerved, obtuse, the margins connate at base, 

 the midrib exserted as an awn; rachilla not produced beyond the floret, palea wanting; lodicules reduced; ovary glabrous, 



caryopsis not adherent to the lemma and palea. About 60 species, widely dispersed in the temperate and cooler regions of 



the N. Hemisphere. 



lA. Spikelets 4-6 mm. long. 



2A. Plants annual; spikelets 5-6 mm. long, rigidly membranous; panicles dense, yellowish or pale green; anthers pale yellow, about 1 



mm. long. 1. ^. japonicus 



2B. Plants perennial with short rhizomes; spikelets 4-5 mm. long, more or less purplish, soft; panicles very dense; anthers deeper 



yellow, 2.5-3 mm. long 2. A. pratensis 



IB. Spikelets 3-3.5 mm. long; anthers orange-yellow when dried, 0.6-1 mm. long; plants annual; panicles slender, about 3-5 mm. thick. 



3. A. aequalis var. amurensis 



1. Alopecurus japonicus Steud. A. mdacostachyus A. 



Gray Setogaya. Smooth, glabrous annual; culms erect 



from ascending base; usually gregarious, 20-60 cm. long; leaf- 

 blades pale green, 4-15 cm. long, 2-5 mm. wide, ligules thinly 

 membranous, ovate, obtuse, 2-4 mm. long; panicles cylindric, 

 3-6 cm. long, 5-8 mm. wide, the pedicels 0.3-0.8 mm. long; 

 spikelets narrowly ovate, slightly lustrous, flat; glumes mem- 

 branous, 3-nerved, nearly free, obtuse, long-ciliate on the keel; 

 lemmas rather thick, rigidly membranous, narrowly ovate, 5-6 

 mm. long, obmse, the awn 10-12 mm. long, arising near base, 

 slighdy geniculate; anthers pale yellow. May. Paddy fields 



and wet river banks; Honshu (Kanto Distr. and westw.), Shi- 

 koku, Kyushu ; common. China. 



2. Alopecurus pratensis L. 0-suzume-no-tepp6. Gla- 

 brous perennial with short rhizomes and short ascending 

 stolons; culms mfted, 50-100 cm. long; leaf-blades flat, 3-6 

 mm. wide, glaucous green; ligules membranous, truncate, 1-2 

 mm. long; panicles cylindric, 5-8 cm. long, 7-10 mm. wide, 

 very dense with very short branches; spikelets slightly lustrous; 

 glumes membranous, narrowly ovate, 3-nerved, obtuse; lem- 

 mas shorter than the glumes, narrowly ovate, glabrous, 

 smooth, the keel scabrous above, the awn from near base on 



