march 1910.] MAKINO.-OBSERV. ON THE FLORA OF JAPAN. 



55 



ftuercus glauca Thunb. Fl. Jap. p. 175 ; Banks, Ic. 

 Select. Kaempf. tab. 17. 



var. striata (Sieb.) Makino. 



Quercus striata Sieb. fide M. Shirai in litt. 



Leaves petiolate, obovato-oblong or oblong-lanceolate, acu- 

 minate with an attenuato-callose tip, acute at the base, sharp- 

 ly serrato-dentate excepting the lower margin, parallelly and 

 erect-patently subalbo-linear-striate between the veins with 

 irregular borders. 



Nom. Jap. Shima-gashi. 



Hah. Prov. Musashi : Tokyo, cult. (T. Makino !) ; Prov. 

 Kaga : Kanazawa, cult. (T. Ichimura !). 



A garden variety. 



Urtica sikokiana Makino, nom. nov. 

 Urtica dioica var. sikokiana Makino in Bot. Mag., Tokyo, 

 XXIII. (1909) p. 84. 



Nom. Jap. Nagaha-irakusa. 

 Hah. Shikoku, high mountains. 



Zannichellia palustris Linn. Sp. PI. p. 969, 

 pedicellata (Buch.-Ham.) Hook. fil. Fl. Brit. Ind. VI. 



Zannichellia pedicellat a Buch.-Ham. in Wall. Cat. n 

 Bennett in Forbes et Hemsl. in 

 Journ. Linn. Soc. XXXYI. p. 197. 



Zannichellia palustris /?. pedi- 

 cellata Wahlenb. Fl. Suec. p. 577. 



Zannichellia palustris proles 

 ft. pedicellata Graebn. in Engl. 

 Pfl.-Reich, Potamoget. p. 156. 



var. japonica Makino, var. 

 nov. 



Stem fluitant. Leaves les- 

 ser than 1 mm. in width. 

 Fruits (Fig. I.) distinctly pedicel- 

 late, 2-5, 3mm. long, narrowly 

 lunato-oblong, somewhat arc- 



subsp. 



p. 568. 

 . 5185 ; 



