Tanaka : New Japanese Fungi 



293 



no Juniperus chinensis was found in the vicinity. After careful 

 examination, Hara found /. littoralis growing wild in the region, 

 which carried telia looking quite different from those of /. chi- 

 nensis. Inoculation, using type material collected by Watanabe, 

 proved that this telial form infects P. sinensis very easily, but P. 

 aucuparia (Sorbus aucuparia, S. japonica) remained free (1. c. 

 6 9 : 751-752). Hara also suggested that the case reported by 

 Ideta, regarding the leaf-inhabiting form of Gymno sporangium 

 on /. rigida as the pear-rust organism, is one of misidentification 

 of the host, because /. littoralis is often mistaken for /. rigida (1. 

 c p. 753). 



SYNOPSIS OF JAPANESE GYMNOSPORANGIUM SPECIES * 



I. Telia on stem, causing hypertrophy 



1. Telia on spheric swelling of the stem of Juniperus chinensis, and /. chinen- 



sis var. procumbens ; aecia on Pyrus Mains, P. spectabilis and P. Toringo ; 

 aeciospores chestnut-brown. 

 Gymnosporangium Yamadae Miyabe, ex Yamada 1904, and Ideta 191 1 

 (G. Yamadai Miyabe). 

 Syn. G. claviaeforme Dietel, non Jacq. 



G. clavariiforme Syd., P. Henn., non Rees. 

 G. chinensis Ito, non Long. 



2. Telia on fusoid swelling of the stem of Juniperus chinensis, and /. chinensis 



var. procumbens ; aecia on Photinia villosa (P. laevis) ; aeciospores yel- 

 lowish-brown. 

 Gymnosporangium japonicum Syd. 1899. 



Syn. Roestelia photiniae P. Henn. in Hedwigia 33: 231, Aug., 1894. 

 (Ex Ito, 1913.) 



Roestelia pourthiaeae Miyabe in Shok. Zass. (Bot. Mag.) Tokyo, 

 I7 i92 : 35 . M. 36, ii, Feb., 1903 (Japanese). (Ex Ito, 1917.) 



Aecidium pourthiaeae Syd. in Bull. Herb. Bois. 1900, no. 4: 3. 

 (Ex Ito, 1917.) 



Gymnosporangium confusum Diet., non Plowr. in Engl. Bot. 



Jahrb. 28: 286. May, 1900 pro parte. (Ex Ito, 1917, p. 180.) 

 G. photiniae Kern. 191 1. 



* In looking over this synopsis, Prof. Miyabe kindly made the following 

 comments : 



(1) The plant here called Juniperus chinensis var. procumbens should be 

 /. chinensis var. Sargenti, since /. procumbens, according to E. H. Wilson, 

 represents an entirely different plan-t. 



(2) The plant here called Juniperus littoralis is better called /. conferta, 

 in accordance with modern classification. 



(3) The apple rust fungus probably had been existing in the prefecture 

 of Aomori for centuries, where the wild crab apple is found common. 



