Pani^itir FiiiKji nf [Uiiiois. 225 



nhirly scaftcn^d, short, deciily ainl ratluM- coarsply split and 

 iiiucli r*'(MirviMl : vpon's snhi^-loliosc or ('lli|)fical (vortical diame- 

 ter shorter), epispore thin, a])pareiitl\ sniootli, contents finely 

 j2:ranular, 3 5 IS hy lS-2() jw: sperm aj^-onia clustered above in 

 the centre of the definite spots, othervv^ise s])arsely scattered on 

 lK)th sides of leaf. 



On Inipatinis: Union, April 20, 43Uf): I'nlaski. May ^, 

 4483, May 8. 4559: McLean, May :U.48(U, .Inne 24. 5280. Jnly 

 2, 2425, July 5, 2434, July 7,' 2436, July 15,5557; LaSallc, 

 June 10. 520h: Adams, July 3, 5388, 5389, July 7, 5451. 



JE. pteleae, 11 & C. 



Mostly hypoi)hyllous. S]iots distinct, yellow, thickened: 

 a^cidia irregularly clustered, cylindrical, rather long, becoming 

 numerously and dee])ly split and much recurved; spores sub- 

 globose or elliptical, large, conspicuously tuberculate. 21-25 l)y 

 24-30 ft; spermagonia not found. 



Spots pallid, in a hollow on the under side of the leaves; pseudo- 

 podia crowded, short, radiated. — Berkeley, Grev., Vol. Ill , p. til. 



On leaves of rtrlra frifnl'mfa : Adams, .Inne 22. coll. ('. A. 

 Hart: Peoria, July 10. ()51(). 



There is scarcely any dou1)t l)ut that the plant desci-il)ed 

 above is the ^Kcid'non pfdea' of Berkeley and Curtis, though the 

 description in Grrevillea is insutficient. and the original s])eci- 

 men in the Curtis collection is so ])oor that its characters can- 

 not be made out. 



M. onobrychidis, Huirill. 



Hypophyllous. Spots distinct or confluent, somewhat ef- 

 fused, yellowish brown: a?cidia subcircinate, crowded, short. 

 l>order abruptly recurved, rather coarsely dissected: spores sub- 

 globose or elliptical, epispore rather thin, studded with low, 

 obtuse tubercles, sometimes united in ridges, 19-24 /*: sperm- 

 agonia clustered in the center of spots mostly on the up])er 

 surface, minute, reddish brown. 



On Psoraha Omhri/rJiis: LaSalh-. June 20. 5249. 



M. psoralese, Peck. 



Hypophyllous. JOcidia uniformly distributed over the 



