GRAMINE.E. 69 



XXVIT. Miscanthus ANDERS. 



1. Leaves broader usually 2cm. wide 1. M. japonicus. 



Leaves narrower usually less than 1cm. wide 2 



2. Branches of panicles few 2. M. transmorrisonensis. 



Branches of panicles many 3 



3. Leaves broader 3. M. sinensis. 



Leaves narrower 4. M. sinensis var. formosanus. 



1. Miscanthus japonicus HACK.; MATSUM. et HAYATA, I.e. p. 517. 



2. Miscanthus transmorrisonensis HAYATA Mater. Fl. Formos. p. 

 404. 



3. Miscanthus sinensis ADDERS.; MATSUM. et HAYATA I.e. p. 518. 



4. Miscanthus sinensis ANDERS, var. formosana HACK.; MATSUM. 

 et HAYATA I.e. p. 518. 



XXVIII. Spodiopogon TRIN. 

 Key to species. 



1. Spikelets nearly glabrous 2 



Spikelets conspicuously barbate 3 



2. Shortly awned 1. S. tohcensis. 



Awnless < 2. S. formosanus. 



3. Leaves ]^-2cm. broad, panicles 20-25cm. long 3. S. Kaivakamii. 



Leaves less than 1cm. broad, panicles less than 10cm. long 4 



4. Leaves smaller nearly 5cm. long 4. S. hogoensis. 



Leaves more than 10cm. long 5 



5. Spikelets larger, panicles more spreading 5. S. tainanensis. 



Spikelets smaller, panicles contracted 6. S. TaJceoi. 



1. Spodiopogon tohcensis HAYATA sp. nov. (Fig. 38). Caul is 60-90 



cm. altus. Folia radicalia ignota? caulina minora, vaginis 25 cm. longis 

 glabris latere uno fissis, ligulis brevibus ciliolatis truncatis, laminis lanceo- 

 latis 10cm. longis 10mm. latis apice acuminatis basi plus minus contractis 

 utraque glabris supra scabris subtus laavibus margine scaberrimis. Culmus 

 50-80 cm. longus glaber teres. Panicula terrninalis pyramidalis 15 cm. longa 

 7-8 cm. lata apice acuminata, rarnis primariis vel spicis ad nodos rhachis 

 panicularurn subverticillatim 5-10 dispositis a medio sursum spiculiferis 



