TTTF 



JOURNAL OF JAPANESE BOTANY. 



EDITED BY 



TOMITARÖ MAKING. 



LECTURER OF BOTANY IX THE FACULTY OF SCIENCE, 

 IMPERIAL UNIVERSITY OF TOKYO. 



Vol. III. May 31, 1926. No. 5. 



Pablisfieil by the Tsttmura LrOjoratortj, Tokyo, Juan. 



A Contribution to the Knowledge of the 

 Flora of Japan. 



{Continxieil from p. 16.) 



By 



Tomitarö Makiiio. 



Rhododendron Komiyamae ^Iakixo, Three Fl. New to Jap. (1925). p. 1. 



A deciduous shrul), uuruerously and densely branched ; branches short, 

 terete, sepiaceous-umber ; branchlets commonly 3-ö-verticiUate, erect-patent, 

 unequal in length, terete, gilvous-brick-coloured or dark-brick-coloured, hirsute 

 with appressed straight hairs, those of this year appressedly white-hirsute, 

 provided with rusty or yellowish-viridescent. thin, obovate, obtuse, deciduous 

 scales at the base. Leaves small, crowded at the top of branchlets. shortly 

 petiolate, elliptical-lanceolate, oblanceolate or angustately obovate, mucronato- 

 acute at the apex, cuneate at the base, entire and appressedly white-ciliated 

 on margin, green and rather thinly pubescent with appressed drab hairs 

 (wliich are dense on the midrib and veins), chartaceous, about 7-28 mm. long 

 and ''^2 -11 mm. wide in the flowering time; midrib prominent beneath; veins 

 2-.3 on each side, ascendingly erect-patent ; ]:»etiole short, densely hirsute with 

 appressed pale hairs, about 1-2 mm. long ; the summer leaves small, linear- 

 spathulate. Flowers pedicellate, usually 3- rarely 2- or 4-uml.ieUate on the 

 top of branchlets, appear with young leaves, faced laterally, sub-zygomorphous, 

 lUac-purple, 2-3 cm. across ; pedicels erect-patent, densely appressed-pilose with 



