MATERIALS FOR A FLORA OF HOKKAIDO. Ill 



By 



^ in. 



1. 



2. 



ERIOPHORUM L. 



Key to the species of Eriophornm found in Hokkaido and 



adjacent regions. 



Bristles 6 E. alpinum L. 



Bristles mimerons 2 



Spikelet solitary, terminal 3 



Spikelets numerous, umbellate 5 



Bristles reddish-brown. Achenes strigose on the upjier margin E. strlgostim noh. 



Bristles white or light brown. Achenes not strigose on the upper margin 4 



Caespitose. Sheath of the uppermost cauline leaf is bladoless and much inflated. 



Achenes obovoid E. variinatum L. 



Stolon-bearing. Sheath of the iippermost cauline leaf is provided with a short 



blade and not inflated. Achenes linear-oblong E. Scheuchzeri Iloppe. 



( Pediincles scabrous. Bristles shorter, about 5 times the length of the fruit., i?. gracile Koch. 

 \ Peduncles smooth. Bristles longer, 10-12 times the length of the fruit.. .E. angustifolium Both. 



10. Eriophorum alpinum L. Spec. PI. ed. 1. (1753) p. 53 ; Kunth, Enura. 

 PL 2. p. 176 ; Fr. Sclim. Fl. Amgun. p. 66 ; Matsum. Ind. PL Jap. 2. 1. p. 147 ; 

 Koidz. Tokyo Bot. Mag. 25. p. 204. 



NoM. Jap. Miyama-sagisvge. (nov.). 



Hab. Yezo. Prov. Isbikaii : Tsuishikari (I. Yamamoto !^^ Aug. 1910) ; Horomui 

 (K. Misumi !=^ June 28, 1909 ; K. Miyabe !''^ June 18, 1912).— Prov. Iburi : Tonia- 

 komai (U. Faurie ! July 1894) ; Yubulsu (Faurie, 1905 ; K. Kondo !'^ July 8, 1907). 



Kamischatlca. Petropavlovski (N. Hashimoto !^^ July 12, 1907). 



1) UJ*:^^ 2) ^m^J& 3) ^tlrlJ^if 4) ffiifi^^ 5) m^\n.^ 

 [Trans, of Sapporo Natural History Soc. Vol. V. Part 2. April, 1914.] 



