(468) 



For the telia: Juniperus scopulorum Sarg. {Sabina scopu- 

 lorum Rydb. 

 Type locality: Boulder, Colorado, on Sabina scopulorum. 

 Distribution: Northeastern Washington and southeastern 

 Oregon to Colorado. 



Illustration: Bot. Gaz. 49: pi. 21, f. 5. 



Exsiccati: Barth. Fungi Columb. 2526, 2789, 2790. 



Farlow, Anniv. Mem. Boston 



34. Gymnosporangium 



. Nat. Hist. 34. 1880 

 1 globosum 



irlow, Anniv 



. Boston 



Gymnosporangiu-i 



Soc. Nat. Hist. 18. 1880. 

 Roestelia lacerata y, z, Thaxt. Proc. Am. Acad. 22: 266. 1887. 

 Puccinia globosa Kuntze, Rev. Gen. PI. 3: 507. 1898. 

 Tremella globosa Arth. Proc. Ind. Acad. Sci. 1900: 136. 1901. 

 Aecidium globosum Farlow, Bibl. Index 1: 49. 1905. 



Aecia chiefly hypophyllous, crowded in irregular or rarely annu- 

 lar groups 2-7 mm. across, cylindric, 1.5-3 mm. high by 0.1-0.2 

 mm. in diameter; peridium soon splitting in the upper part, be- 

 coming reticulate half way to base; peridial cells seen in both face 

 ?g. and side views, broadly lanceolate in face view, 15- 



|» 23X60-90/1, linear-rhomboid in side view, 13-19/1 

 fe^ thick, outer wall about 1.5/1 thick, smooth, inner 

 §K; and side walls 3-5/1 thick, rather densely rugose with 

 g^g ridge-like papillae of varying length; aeciospores 

 |gs; t globoid or broadly ellipsoid, 15-19X18-25/1, wall 

 J|gj light chestnut-brown, 1.5-2/1 thick, finely verrucose. 

 fT\ ipf Telia caulicolous, appearing on irregular globoid 



^^ evenly disposed, often separated by the scars of the 



Fig. 30. G. sori of previous seasons, tongue- or wedge-shaped, 



globosum. Lg-^ mm . broad by 2-5 mm. long at the base by 



6-12 mm. high, chestnut-brown; teliospores 2-celled, 



ellipsoid, 16-21X37-48/1, somewhat narrowed above and below, 



slightly constricted at the septum, wall pale cinnamon-brown, i-2/j 



thick; pores 2 in each cell, near the septum. 



Host plants: 



For the aecia: Crataegus acutiloba Sarg., C. ancisa Beadle, 

 C. anomala Sarg., C. apposita Bissellii Egg., C. arcuata 

 Ashe, C. asperifolia Sarg., C. Biltmoreana Beadle, C. Boyn- 

 toni Beadle, C. Brainerdi Sarg.,C. Buckleyi Beadle, C. Cham- 

 plainensis Sarg., C. Chapmani Ashe, C. coccineaL. (C. modesta 

 Sarg.), C. coccinoides Ashe, C. coccinoides dilitata (Sarg.) 



