Tanaka: New Japanese Fungi 



291 



chains on the pedicel 3-4.5/* thick (sometimes attaining to 9/1 

 thick in absorbing moisture). The spores are globose or broad- 

 ellipsoid, 20-26 fx in diam., wall is thick, dark brown, 1.5-2 p thick, 

 contents being granular, rust-colored. In cutting the sori longi- 

 tudinally, well-developed hyphae were observed, which were either 

 apparently filling the enlarged host cells or running between them. 

 The hyphae were colorless or fulvous, branching, 2-2.5 P m diam. 

 The spores did not germinate after several attempts, and that led 

 Hara to consider these to be rudimentary urediniospores which 

 had probably lost their function. He states that these peculiar 

 spores occur also in the telia without forming independent sori of 

 their own. He also ventures to add an account of this form to the 

 generic character of Gymno sporangium. See Byochu-gai Zasshi 

 (Journ. PI. Prot.) 6 9 : 754-755. T. 8, ix, Sept., 1919. ' (Japa- 

 nese.) 



Gymnosporangium Shiraianum K. Hara sp. nov. in Byochu-gai 

 Zasshi (Journ. PI. Prot.) 6 8 : 681-687, 6 9 : 75i"756- 1 pi. T. 

 8, viii-ix, Aug.-Sept., 1919. (Japanese.) 



0. Pycnia epiphyllous, on orange-red or reddish spots of 5 -10 

 mm. broad, immersed, globose or depressed-globose, 1 50-200 jx in 

 diam., ostiolar filaments needle-shaped, narrowed at the apex, 

 straight, containing orange-colored granules, 80-120 x 3-4^; 

 pycnospores cylindric or ellipsoid, narrowed at both ends, hyaline, 

 8-12 x 3-4 p; pedicels linear, narrowed at the apex, hyaline, 15- 

 30 x 2.5-3 



1. Aecia hypophyllous, on 7-10-times thickened spots, the sur- 

 face of which undulate, orange-yellow with margin of orange or 

 reddish color, cespitose in small group or irregularly scattered, at 

 first cinereous with purplish-yellow, simply projecting, later elon- 

 gating into cylinder or tube, 0.25-0.5 mm. in diam., 1-5 mm. high; 

 peridium straight or curved, at first with rounded end, later de- 

 hiscent; peridial cells sub-hexagonal, elongated, or fusoid, rarely 

 subglobose, lower ones much shorter and light-brown in color, 

 33-90 x 20-40 fx, outer wall parallel-striated, 4-7 \x thick ; aecio- 

 spores globose, ovoid or polygonal, fulvous, 18-23 x 16-18 /x, wall 

 verrucose, 1-2 ^ thick, the pores 6-14, pedicel linear, variable in 

 length, 4-5 fx in diam. 



On Pyrus sinensis. 



Type locality : Totomi province (Shidzuoka-ken) Mikatagahara, 

 June 6, 1919 (K. Hara). 



