170 Bulletin 313 



"Telia caulicolous, appearing on fusiform swellings, scattered, 

 oval or irregular, about 1.5-3 mm. wide, by 2-7 mm. long, often con- 

 fluent, hemispheric, chestnut brown ; teliospores 2-4 celled, 13-19 x 

 35-77 fi, usually rounded above, somewhat narrowed below, slightly 

 constricted at the septa, wall pale yellow, 1-1.5 /x, the pores 2 in 

 each cell, near the speta." Kern in Bui. N. Y, Bot. Garden, v. 7, 

 p. 452. 



945. Aeciospores from Amelanchier sp., 1/12. 946. Teleutospores from 

 Chamaecyparis thyoides, 1/12. 



Gymnosporangium effusum Kern. — On Juniperus virginiana. 



"O. .^cia imknown. 



"III. Telia caulicolous, from a perennial mycelium, usually ap- 

 pearing on branches 0.3-1.5 cm. in diameter, causing long slender 

 fusiform enlargements 0.5-2.5 x 15-40 cm., extending into and caus- 

 ing some swelling of the smaller branches and twigs arising from 

 the infected areas, sometimes on the larger trunks, usually break-ing 

 forth in series along the branch with the grain of the wood, im- 

 evenly disposed, hypertrophied scars of previous seasons frequently 

 interspersed, when dry more or less wedge-shaped, but often ir- 

 regular and lacunose, sometimes forked or divided and staghorn- 

 like, when mature and expanded 2-3 mm. broad by 2-5 mm. long at 

 base, 7-10 mm. high, the surface more or less rugose, dark chestnut- 

 brown becoming cinnamon-brown after expansion ; teliospores 

 2-celled, oblong-ellipsoid, 16-22 by 45-55 /x, rounded or slightly 

 narrowed both above and below, slightly constricted at the septum ; 

 wall dark cinnamon brown, rather thin, 1-2 fi, varying in thickness 

 on different spores, the pores 1 or 2 in each cell, near the septum ; 

 pedicel hyaline, cylindrical, uniform, 3-5 fx in diameter, very long.'' 

 North American Flora, v. 7, p. 201 (1912). 



947. Teleutospores from Juniperus virginiana, 1/12. 



Gymnosporangium ellisii (Berk|) Farlow. — On Chamcccyparis 

 thyoides. This has been described by Fromme as follows : 



"O. Pycnia epiphyllous, gregarious, in crowded circular groups, 

 2-5 mm. in diameter, on blackened areas, subepidermal, orange-yel- 

 low, globose in vertical section, 140-190 fx. broad by 175 fi deep; 

 ostiolar filaments 30-80 /x long. 



"I. Aecia hypophyllous, fructicolous and caulicolous, in crowded 

 groups, on discolored hypertrophied areas, cupulate, 0.2-0.3 mm. in 

 diameter ; peridimn yellowish, fragile, becoming lacerate to the base, 



