88 



GK AMINEJE. 



LIL Calamagrostis ADANS. 



1. Branches of panicles much contracted, spike-lets much narrower, densely 



clustered 1. C. Epigejos var. densifloru. 



Branches of panicles not contracted, spikelets not clustered, densely or 

 very laxely arranged 2 



2. Branches or branch! ets of panicles straight, spikelets densely arranged. 



2. C. formosana. 



Branches or branchlets of panicles flextious, spikelets few, loosely arranged. 

 3. C. morrisonensis. 



1. Calamagrostis Epigejos ROTH. var. densiflora LEDEB.; MATSUM. 

 et HAY ATA I.e. p. 536. 



2. Calamagrostis formosana HAYATA sp. nov. (Fig. 55). Culmus 

 70-80 cm. altus glaber et laavis erectus rectus teres. Folia radicaria non 

 visa; caulina : lamina linearis 30-40 cm. 



longa 6-7 mm. lata apice acuminata basi vix 

 attenuata plus minus scabra, vagina 14cm, 

 longa caulem amplectanti, ligula magua 8 

 mm. longa 5 mm. lata membranacea. Pani- 

 cula tcrminalis cylindrica 20 cm. longa 4 cm. 

 lata ; rhachis teres recta, ramis rectis ascen- 

 dentibus primariia 5-6 fasciculatis, fasciculis 

 alternis civc. 5 cm. longis, inferioribus a se 

 1-3 cm. remotis recti.s, ramulis secundariis 



2-3 fasciculatis, fasciculis alternis plus Fig. SS, (Mamagrostis formosana 



HAYATA. a, a spikelet; b, gl. 1.; c, 



minus scabris, pedicellis ultimis 1-2 mm. gl- n.; d a flowering glume with its 



palea ; e, the same glume ; 1, a palea ; 



longis scabris. Spiculre pallido-violascentes > stamens. 

 vel non coloratre. Gl. I. lanceolata 4^ mm. longa 1 mm. lata apice acumi- 

 nata subglabra dorso versus apicem plus minus carinata scabra ; gluma II. 

 fere conformis ; gl. florens hyalina 5-nervosa 3 mm. longa oblonga 1 mm. 

 lata apice truncata denticulata dorso prope basin arista una instructa, arista 

 4 mm. longa hand torta scabra, palea hyalina lanceolata 2^ mm. longa haud 

 carinata ; rhacheola supra glumas I. et II. brevissima longe pilosa, pilis 

 2| mm. longis patentibus. Stamina 3. 



