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 IX, usually rounded above, somewhat narrowed below, slightly 

 constricted at the septa, wall pale yellow, 1-1.5 fx, 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 

 Chamsecyparis thyoides, 1/12. 



Gymnosporangium effusum Kern. — On Juniperus virginiana. 



"O. TEc'ia. unknown. 



"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 breaking 

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

 evenly disposed, hypertrophied scars of previous seasons frequently 

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

 regular and lacunO'Se, 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 //., rounded or slightly 

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

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

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

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

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



947. Teleutospores from Juniperus virginiana, 1/12. 



Gymnosporangium ellisii (Berk|) Farlow.— On Chamcccy parts 

 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 jx broad by 175 jx deep; 

 ostiolar filaments 30-80 /a long. 



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

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

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



