5. Gymnosporangium Harknessianum (Ellis & Ev.) 

 Roestelia Harknessiana Ellis & Ev.; Kern, Bull. Torrey Club 



462. 1907. 



Aecia chiefly fruiticolous, evenly disposed, cylindric, 0.5- 

 mm. in diameter, 4-7 mm. long; pe- 

 ridium tough, dehiscent at apex, not 

 becoming lacerate along the sides, re- 

 maining tubular; peridial cells seen in 

 both face and side views, polygonal- 

 oblong in face view, 40-65 X 90-1 1 2/t, 

 rhomboid in side view, 58-74// thick, 

 outer wall moderately thick, 4-6 1 

 >oth, inner wall thick, 15-20/1, 





idth roundish 



slightly irregular papillae, side 



ae slightly less 

 2-26 X 26-30/x, 



crowded toward outer wall; 

 wall light cinnamon-brown, 



Telia unknown 





For the aeci 



For the telia 



Type localit 



a: Amelanchier alnifolia Nut 

 r: Klamath River, Califorr 



Aecia unknown. 



alnifolia. 



Distribution: Known only from type locality. 

 Illustration: Bot. Gaz. 49: pi. 22, f. 16. 

 Exsiccati: Ellis & Ev. N. Am. Fungi 2714. 



•iporum Kern, Mycologia 1: 210. 

 1909 



Telia caulicolous, arising between the scale- 

 like leaves on the green twigs, scattered or 

 aggregated and confluent, musciform, 0.5-1 

 mm. across by 0.5-0.8 mm. high, light chest- 

 nut-brown; teliospores 2-celled, ellipsoid, 20- 

 24X45-5 1 M, rounded both above and below, 

 considerably constricted at the septum, wall 

 light cinnamon-brown, 1.5-2.5/1 thick; pedicel 

 cylindric; pores 5-7 in each cell, large, scat- 



