164 



Gramineae 



spreading, smooth, rather thick; spikelets rather long-pedi- 

 celled, narrowly oblong, 7-8 mm. long, 3- to 5-flowered, 

 glaucous-green with a purple hue; glumes unequal, lanceolate, 

 smooth, very acute, the lower 1-nerved, about 4 mm. long, the 

 upper 3-nerved, about 5 mm. long; lemmas lanceolate, acumi- 

 nate, 5-nerved, glabrous on the sides, the intermediate nerves 

 obscure, pubescent on the keel on the lower half and on the 

 marginal nerves near base, the web wanting; anthers about 3 



mm. long. July-Aug. Grassy slopes in alpine regions; 



Hokkaido (Mount Taisetsu and Mount Yubari), Honshu 

 (Mount Hayachine in Rikuchu) . 



13. Poa macrocalyx Trautv. & Mey. P. stenantha var. 



japonica Hack. Karafuto-ichigo-tsunagi. Rhizomes 



short, slender, long-creeping; culms 30-70 cm. long, smooth; 

 leaf-blades flat, 10-20 cm. long, 2.5-5 mm. wide, rather soft; 

 sheaths terete, smooth, or slightly compressed on the innova- 

 tion-shoots; ligules 2-3 mm. long; panicles nodding or 

 pendulous, sometimes nearly erect, ovate, 10-20 cm. long, 

 the branches geminate or subverticillate, nearly smooth; spike- 

 lets often purplish, sometimes glaucous, ovate, 6-10 mm. long, 

 3- to 5-flowered; glumes lanceolate, 4-6 mm. long, acuminate, 

 the lateral nerves prominent, reaching almost to the apex; 

 lemmas narrowly ovate, very acute, 4-6 mm. long, 5-nerved, 

 glabrous or with pubescent intermediate nerves, the keel and 

 the marginal nerves pubescent on the lower half, the web elon- 

 gate, prominent; anthers 1.5-2.5 mm. long. Grassy places 



in lowlands, especially near seashores; Hokkaido; rather com- 

 mon and very variable. Around the Okhotsk Sea, Sakhalin, 



Kuriles, Kamchatka, and the Aleutians. 



Var. fallax (Hack.) Ohwi. P. stenantha var. jallax Hack. 



^Watage-somosomo. Lemmas appressed-pubescent on the 



lower half. Near seashores; Hokkaido; rare. 



Var. scabriflora (Hack.) Ohwi. P. scabriflora Hack. 



Zarabana-somosomo. Lemmas scabrous with minute, hair- 

 like aculeoli. Near seashores; Hokkaido. Sakhalin. 



Var. tatewakiana Ohwi. P. tatewa\iana Ohwi Hoso- 



bana-somosomo. Culms 30-60 cm. long; panicles pendulous 

 or strongly nodding; spikelets glaucous-green; lemmas narrow, 



gradually acuminate. Near seashores; Hokkaido (e. distr.). 



s. Kuriles. 



14. Poa sachalinensis (Koidz.) Honda. P. macrocalyx 

 var. sachalinensis Koidz.; P. yezoensis Ohwi; P. sachalinensis 

 var. yezoensis Ohwi Hime-Karafuto-ichigo-tsonagi. Al- 

 lied to and possibly not distinct from the preceding, but more 

 slender and with slender stolons; culms 30-80 cm. long, 

 smooth; leaf-blades 20-30 cm. long, 3-6 mm. wide; panicles 

 7-20 cm. long; spikelets 5-8 mm. long, pale or glaucous-green, 

 sometimes pardy purplish; glumes unequal, the lower 1- to 

 3-nerved, 2.5-4 mm. long, the upper 4-4.5 mm. long, 3-nerved, 

 the lateral nerves '/i-% the length of the glume; lemmas 4-4.5 



mm. long. July-Aug. Grassy places in lowlands, especially 



near seashores; Hokkaido. Sakhalin. 



Var. yatsugatakensis (Honda) Ohwi. P. yatsugata\ensis 



Honda Tani-ichigo-tsunagi. Lemmas rather broad, 



acute. Along rivers in high mountains; Honshu (Mount 



Yatsugatake in Shinano) ; rare. 



15. Poa komarovii Roshev. var. shinanoana (Ohwi) 

 Ohwi. P. alpina sensu auct. Japon., non L.; P. shinanoana 



Ohwi Miyama-ichigo-tsunagi, Takane-ichigo-tsunagi. 



Low, smooth perennial with short ascending innovation- 

 shoots; culms loosely tufted, 10-25 cm. long, rather stout, erect 

 from ascending base; leaf-blades rather thick and soft, flat or 



with slightly involute margins, 4-6 cm. long in the cauline, 

 slightly longer in the radical, 4-5 mm. wide, glaucous above; 

 ligules 2-4 mm. long, semirounded; panicles broadly ovate, 

 open, erect or slighdy nodding, 5-7 cm. long, the branches 

 geminate, smooth, spreading, rather thick; spikelets short- 

 pedicelled, 6-8 mm. long, 2- to 4-flowered, purplish, rarely pale 

 green; glumes slightly unequal, acuminate, with very short 

 lateral nerves, the lower 3—4 mm., the upper 4-5 mm. long; 

 lemmas broadly lanceolate, 5-6 mm. long, very acute, weakly 

 5-nerved, sometimes pubescent below, the midrib and mar- 

 ginal nerves pubescent on the lower half, the web rather short; 



anthers 1.5-2 mm. long. July-Aug. Grassy slopes and on 



rocks in alpine regions; Honshu (centr. distr.). ^n. Korea. 



Some plants have viviparous spikelets. The typical phase 



occurs in Kamchatka and n. Kuriles. 



16. Poa trivialis L. P. uda Honda O-suzume-no- 



KATABiRA. Culms 40-100 cm. long, decumbent at base, 

 rather slender, often retrorsely scabrous below the panicle; leaf- 

 blades green, flat, soft, 10-20 cm. long, 3-5 mm. wide; sheaths 

 slightly compressed, often somewhat retrorsely scabrous; ligules 

 hyaline, deltoid, 3-6 mm. long; panicles ovate, open, 10-20 

 cm. long, the branches subverticillate, scabrous; spikelets green, 

 2.5-3.5 mm. long, 2- or 3-flowered; glumes lanceolate, about 

 2.5 mm. long, acute, the lower 1- to 3-nerved, the upper 

 3-nerved; lemmas 2.5-3 mm. long, narrowly ovate, acute, 

 5-nerved, glabrous on the sides, the keel and marginal nerves 

 short-pubescent near base, the web elongate; anthers 1.2-1.7 



mm. long. May-June. Lowlands, possibly naturalized; 



Hokkaido, Honshu (centr. distr. and northw.). ^Europe 



and w. Asia. 



17. Poa palustris L. Numa-ichigo-tsunagi. Cuhns 

 50-100 cm. long, slender, erect from ascending to short-creep- 

 ing base, smooth; leaf-blades linear, 10-20 cm. long, 1-2 mm. 

 wide; ligules 3-5 mm. long, obtuse; panicles erect, 12-25 cm. 

 long, very loose and open, ovate, the branches subverticillate, 

 scabrous, spreading; spikelets 2- or 3-flowered, ovate, 3-5 mm. 

 long, acute, pale green; glumes lanceolate, 2-2.5 mm. long, 

 acute, 3-nerved, with a scabrous keel; lemmas acute, often 

 bronzed toward margin, 2.5-3 mm. long, glabrous, the keel 

 and marginal nerves pubescent on lower 1/3-1/2 of the entire 



length; anthers 1-1.5 mm. long. ^May-June. Naturalized; 



Hokkaido, Honshu (centr. distr. and northw.). Cooler re- 

 gions of the N. Hemisphere. 



18. Poa sphondylodes Trin. P. linearis Trin. ; P. diantha 

 Steud.; P. strictula Steud.; P. sphondylodes var. diantha 

 (Steud.) Munro; P. palustris var. strictula (Steud.) Hack.; P. 

 misera Koidz., excl. syn.; P. sphondylodes var. strictula 



(Steud.) Koidz. Ichigo-tsunagi, Zara-tsuki-ichigo-tsu- 



NAGi. Tufted, glaucous-gieen perennial; culms slender, 

 somewhat firm, erect, 30-60 cm. long, sometimes reddish 

 at the base, scabrous on the upper part of the internodes and 

 below the panicle; leaf -blades glaucous-green, slightly in- 

 volute, scabrous, 5-15 cm. long, 1.5-3 mm. wide; ligules lan- 

 ceolate, acute, 3-8 mm. long; panicles erect, 5-15 cm. long, 

 lanceolate, contracted, the branches 3- to 6-nate, scabrous, erect 

 to ascending; spikelets pale- or glaucous-green, ovate, 3-5 mm. 

 long, 3- to 6-flowered; glumes unequal, lanceolate, acute, the 

 lower 1.5-2 mm. long, 1-nerved, the upper 3-nerved, 2-2.5 (-3) 

 mm. long; lemmas about 3 mm. long, rather acute, glabrous 

 on both sides, pubescent on the lower 14-H of the keel and 

 on 1/3-2/3 the length of the marginal nerves, the web rather 

 copious; anthers 1.2-1.5 mm. long. May-July. Sandy, 



