184 



Mycologia 



mm. long, and 0.1-0.2 mm. high, averaging 0.5 by 0.85 by 0.16 

 mm. ; pyenospores 2-3 by 4-7 /x, averaging 2.4 by 5 fx. 



Aecia from a limited mycelium, amphigenous, one to several 

 in a single row usually on the inner sides of the leaves, on chlo- 

 rotic spots, occasionally , confluent, flattened laterally, rectangular 

 before rupturing, 0.26-0.5 mm. wide, 2-20 mm. long, and 0.25- 

 0.45 mm. high, after rupture, averaging 0.35 by 6.1 by 0.35 mm. ; 

 peridium thin, rupturing circumscissally, the ruptured edges re- 

 curved and lacerated or irregularly fringed, fragile ; peridial cells 

 ellipsoid to cylindric, occasionally clavarif orm, 18-33 ^ wide, 25- 

 63 fx long, averaging 23 by 42 /x, slightly overlapping but loosely 

 adherent, with walls 2-6 fx thick, averaging 4.4 /x, outer walls 

 thicker than inner, both verrucose with cylindric papillae 1-2 /x in 

 diameter by 2-6 /x in length, averaging 1.3 by 3.8 fx; aeciospores 

 ovoid to ellipsofd, occasionaly pyrif orm, 16-23 .by 22-42 fx, aver- 

 aging 19. 1 by 31.5 /x, contents orange, fading when old, walls 3-6/1, 

 thick, averaging 4.7 /x, verrucose with short, blunt tubercles 2-4 fx 

 in diameter and 2-6 /x long, averaging 2.6 by 3.9 jx. 



Coleosporhim apocyndceum Cooke has been collected in the 

 United States only as follows: 



O. and I. On Pi'nus near Ocala, Florida : 



P. caribaea, in 1918, March 27 (25212) and April 7 (29101). 



P. pahistris, in 1918, March 27 (25214, type collection), April 

 7 (29100) ; in 1919, February 27 (32141) and May 15 (32379). 



P. taeda, in 1919, March 27 (25213) and May 15 (32384). 



II and III. On Amsonia: 



A y amsoniae, South Carolina, in i860, by H. W. Ravenel, 

 Pinopolis (Fungi Caroliniani Exsiccati, 489) ; Alabama, in 1864, 

 by T. M. Peters (Peters Collection, University of Alabama) ; in 

 1896, by F. S. Earle and L. M. Underwood, Auburn, Alabama, 

 July (Flora Alabama). 



A. ciliata, South Carolina, in 1852, by H. W. Ravenel, Aiken 

 (Fungi Caroliniani Exsiccati 44) ; in 1.916, by G. G. Hedgcock, 

 Clearwater, September 27 (24102) ; Florida, in 1918, Silver 

 Springs, Ocala, March 27 (25215), May 7 (25299), May 24 

 (25284 & 291 16) ; and in 1919, May 15 (32378). 



COLEOSPORIUM LACINIARIAE 



Arthur first described the uredinia and telia of Coleosporhim 

 laciniariae in 1907 (1), reporting it from specimens of Laciniaria 



