390 ^V/E" BOTANICAL MAGAZINE. tvoi. xxvi. No. 312. 



Nom. Jap. Ama-cha (Sweet Tea). 



Hab. Japan, cultivated ! (T. Makino !). 



This variety is readily recognizable by its retuso-rounded 

 suborbiculate radiate sepals. It is not yet known in wild 

 state, but only cultivated- The leaves have a sweet taste 

 when dry, and from the dried leaves so-called ' Awa-cha^ (Sweet 

 Tea) is prepared. For this use the shrub is cultivated abun- 

 dantly in some localities in Japan. Leaves of no other variety 

 of this species has the sweet taste. 



Alnus obtusata (Franch. et Sav.) Makino, nom. nov. 



Alnus maritima 0. obtusata PVanch. et Sav. Enum. PI. Jap. 

 I. (1875), p. 458, et II. (1879), p. 502. 



Alnus glutinosa var. ^. obtusata H. Winkl. Betulac. in 

 Engler's Pfl.-Reich. (1904), p. 118 ; Matsum. Ind. PI. Jap. II. 2 

 (1912), p. 17. 



Alnus glutinosa Miq. Prol. Fl. Jap. (1866-67), p. 69, non 

 Gfertn. 



Alnus glutinosa var. japonica Matsum. in Journ. Coll. So. 

 Imp. Univ. Tokyo, XYI. 5 (1902), p. 9. 



Nom. Jap. Kawara-hannoki. 



Hab. Japan, southern. 



A shrub. It grows always in sandy places on river side. 



Alnus cylindrostachya (H. Winkl.) Makino, nom. nov. 



Alnus glutinosa var. e. cylindrostachya H. Winkl. Betulac. in 

 Engler's Pfl.-Reich. (1904), p. 118; Matsum. Ind. PI. Jap. II. 

 2 (1912), p. 17. 



Nom. Jap. Mivama-kawarahannoki. 



Hab. Japan, central and northern. 



It is always found on side of rivulets and in bogs on 

 mountains, 



Alnus formosaua (Burkill) Makino, nom. nov. 



Alnus maritima var. formosana Burkill in Journ. Linn. Soc. 

 XXYI. (1899), p. 500 ; Henry, List. PI. Forraos. p. 90 ; Matsum. 

 Rev. Alni Jap. in Journ. Coll. Sc. Imp. Univ. Tokyo, XVI. 5 



