168 THE BOTANICAL MAGAZINE. [Vol. xxvni No. sso. 



Hah. Prov. MIKAWA (T. Making ! Oct. 23, 1893, Oct. 29, 

 1894 ; G. Nagura ! Sept. 21, 1896). 



This species is known only from the Central Japan, and it 

 differs from Pollinia quadrinervis Hack, by having the more 

 robust culm, more numerous and deeper-coloured racemes, densely 

 hairy rachis, smaller and more densely hairy flowers, and 

 deeper-coloured awns. 



I have named the species in honour of Mr. Yoshio Tanaka, 

 a member of the House of Peers, who first noticed to this plant. 



Pollinia quadrinervis Hack. Androp. in DC. Monogr. 

 Phanerog. VI. (1889), p. 158 ; Id. in Bull. Herb. Boiss. VII. 

 (1899), pp. 640, 721 ; Hook. fil. F1. Brit. Ind. VII. p. 110 ; 

 PiLGER in Engl. Bot. Jahrb. XXIX. (1900), p. 222 ; Palibin, 

 Consp. Fl. Kor. III. (1901), p. 30; Rendle in Journ. Linn. 

 Soc. XXXVI. p. 356 (1904) ; Nakai, Fl. Kor. II. (1911). p- 

 340. (Sect. Eulalia.) 



Erianthus tristachyus Nees in Hook, et Arn. Bot. Beech. 

 Voy. (1841), p. 241, et in Nov. Act. Nat. Cur. XIX. Suppl. I- 

 (1843), p. 183, excl. synn. 



Pollima vWosa Munro in Benth. Fl. Hongk. p. 420, non 

 Spreng. 



Miscanthus amnis Making in Sched. Herb. Sc. Coll. Imp. 

 Univ. Tokyo. 



Pollinia amnis Making, 1. c. 



Pollinia {Eulalia) sp. Makino in Bot. Mag., Tokyo, XIL 

 (1898), p. 165. 



Perennial, attaining about 11 decim. in height. Culms 

 erect, slender, terete, smooth, glabrous, densely pilose with 

 adpi-essed white hairs at the upper edge of the nodes, solid : 

 internodes elongate, wholly enclosing with the leaf-sheaths ex- 

 cept the superior ones. Leaves, long, linear, gradually acumi- 

 nate with a very sharp point at the apex, gradually long- 

 attenuated towards the base, which beset with long pilose pale 

 hairs, ciHated with subadpressed or erect-patent white hairs 

 on margin, chartaceous, very sparingly adpressed-pilose above, 



