92 



identified the uredo on Parthenocmua tricuspidata, collected by Mr. T. 

 Makino. 



I was kindly given the specimen of Uredo on Parlhenoc Issus tricwpi- 

 daia by Mr. T. Makino, which he had communicated to Prof. Dietel 

 through Prof. Miyoshi, and which upon examination was proved to he the 

 Uredo stage of the present species. 



Phacopsora Ehretiae (Barcl.) Hiratsuka. 

 tfyn. Uredo Ehrduv Barclay." 

 PI. III. Fig. 10-13. 



Spcrmogonia applanata, amphigenous, maculi 3-5 mm. diam., orange 

 color. 



Uredospores. Sori ui n pi i i-i • n- us. accompanied hy spermu-onia or inde- 

 pendent of them, small, roundish, separate, pscudoperidia mid paraphyses 

 absent, at first covered by the epidermis, at maturity rapturing it, orange 

 color; spores long obovate or long elliptical, 22-23/* long, 16-20/1 broad, 

 uuvllv 22// x 17 ft, ' epispore brownish, distinctly echinulate, apex much 

 thickened; contents orange color. 



ing groups, at first yellowish-brown at last dark-brown : spores are formed 

 under the epidermis in 3-4 layers, closely united together, upper one some- 

 what cylindrical, 22-30 n long, 12-15 n broad, the rest cubical, 15-18 /iX 

 12-1 ."> n ; epispore brownish, at apex 'slightly thickened, especially upper 

 most ones. 



Hah. On Ehretia acuminata H, Br. (chisJtanoJci). 

 Shuri, Prov. Riukiu, Jan. 6, 189!), (II, III.). 

 April 18, 1899, (Spermogonia and II.) (K. Hiratsuka !) ; 

 May 6, 1900, (II.), (T. Maida !). 



