Interspersed; aeciospores globoid, 20-36X23-32/*, wall 

 imon-brown, 3-4^ thick; very finely verrucose, appearing 



colous, appearing c 



regularly lobed gall-like ( 



the 



• cylindri 



high, 



by 3-5 r 

 dark chestnut-brown; teliospore 

 ellipsoid, 18-21X35-50/1, usually rounded 

 both above and below, slightly or not at 

 all constricted at the septum, slightly 



rthe 



eptum 



places owing to the presence of hyali; 

 >s over the germ-pores, wall light cinnamon-brown, 

 5,u; hyaline thickenings about 1-1.5^; pore 

 the septum. 



ich 



r (L.) Medic, 



thickeni 

 thin, 1- 

 cell, nes 



For the aecia: Amelanchier canadei 

 Blanch, A. intermedia Spach, 

 Gray) Roem, A. sanguinea (Pursh) Lindley. 

 For the telia: Juniperus horizontalis Moench (J. prostrata 

 Pers.), /• virginiana L. 

 Type locality: Leland, Mich, on Juniperus horizontalis. 

 Distribution: From Vermont and Massachusetts west to 

 northern Illinois and eastern Iowa. 



Exsiccati: Seym. & Earle, Econ. Fungi 248a, b; Ellis & Ev. 

 Fungi Columb. 1827; Ellis & Ev. N. Am. Fungi 2775. 



38. Gymnosporangium floriforme Thaxt.; Kern, Bull. Torrey 



Club 35: 503. 1908 

 Roestelia flaviformis Atkinson; Underw. & Earle, Bull. Ala. Exp. 



Sta. 80: 218, hyponym. 1897. 

 Gymnosporangium flaviformis Earle, Contr. U. S. Herb. 6: 186, 



hyponym. 1901. 

 Aecidium flaviformis Farlow, Bibl. Index 1: 44, hyponym. 1905. 



Aecia hypophyllous, rather widely separated in oblong-annular 

 groups 2-6 mm. across, on thickened discolored spots, at first 

 cylindric, 1-1.5 mm. high by 0.2-0.5 mm - m diameter; peridium 

 rupturing extremely early and becoming finely fimbriate to base, 

 strongly revolute; peridial cells usually seen only in side view, long 

 and narrow, 10-14X65-85^, becoming somewhat curved when 



