(440) 



4. Gymnosporangium inconspicuum Kern, Bull. Torrey 

 Club 34: 461. 1907 



Roestelia Harknessianoid.es Kern, Bull. Torrey Club 34: 463. 1907. 

 Aecia chiefly fruiticolous, scattered irregularly or crowded, 



cylindric, 0.5-0.8 mm. in diameter by 2-4 mm. high; peridium 

 rather tough, rupturing at apex, not be- 

 coming lacerate along the sides, remaining 

 tubular; peridial cells seen in both face 

 and side views, polygonal-oblong in face 

 view, 25-35X65-100/*, rhomboid in side 

 view, thick, 45-5 5//, outer wall moderately 

 thick 5-8/x, smooth, inner wall very thick, 

 27— 35/j, moderately and closely verrucose 

 with slightly irregular papillae, side walls 

 verrucose only on inner third similar to 

 inner wall; aeciospores globoid, 23-27 

 X25-31M, wall pale yellow, 2-2.5/* thick, 



Telia caulicolous, usually arising be- 

 tween the scale-like leaves on the green 

 branches, usually causing a yellowing of 

 the leaves, more rarely on the woody 

 branches, scattered or aggregated and 

 often confluent about the entire margins 

 •onspicuum. f several adjacent scale-like leaves, pulvi- 

 nate, oblong, 0.4-1 mm. wide, 0.5-1 mm. 

 brown; teliospores 2-celled, oblong-ellispoid, 25-29 

 :n acutish at apex, obtuse below, not or only slightly 

 ; the septum, wall thin, about I/*, golden yellow; 

 :el carotiform; swelling greatly next to the spore, 25-65/1; 



t in each cell, apical in the 



r the pedicel in the 



1.) Lem 



hila A. 



. (Sabina 



For the aecia: Amelanchier alnifolia Nutt 



Nels., A. utahensis Koehne. 

 For the telia: Juniperus utahensis (Enge 

 •utahensis Rydb.). 

 Type locality: Glenwood Springs, Colorado, on Sabina utah- 



: In the mountains of western Colorado, Utah, 

 and New Mexico. 



Illustrations : Bot. Gaz. 49: pi. 22, f. 15; Mycologia 3 : 158,/. id. 

 Exsiccati: Ellis & Ev. Fungi Columb. 1293. 



