DESCRIPTION OF AMKRICAX ^- REDINE.E. 55 



Sori mostlv round, pul\'in:itL', al first yellowish-red, then 

 brown, gray, with the germinating spores generally thickly 

 scattered over the leaf; spores fusiform, narrowed at each 

 extremity, sometimes rounded at the apex, slightly con- 

 stricted. 36-60," bv 16-2^/1: membrane smooth, light brown, 

 thick, slightly thicker at apex; pedicel hyaline, up to i20« 

 long. Plate III.. Figs. 15a. 15b. 



This Puccinia. hrst described in 1852. from a specimen 

 found in Chile, is remarkable for the rapidity with which it 

 has spread nearly all oyer the world. In 1869 it appeared in 

 Spain, in 1873 in France and England, in 1874 i" Italy and 

 Germain-, and in the course of a year or two it had spread all 

 over Europe, attacking the holh'hocks so virulently that they 

 almost disappeared for a time from the gardens. 



Erickson has noted in Sweden that of young plants of 

 AUhcea rosea, the red and white-flowered varieties suffered 

 the most, while the \ellow-flowered ones nearly or entirel}' 

 escaped. 



In the United States it has been found in N. Y., Mass.. 

 Mich.. New Mex.. and is very abundant in California. 



Exsic. Ellis, N. A. F. 1850. 



16. Puccinia varioi.ans Hark. (1884. Bull. Calif. Acad. p. 



15-) 



16. On AplopappHS sqiiarrosits. Hook & Arn.. Pasadena, 



Calif. 1893., JMcClatchie. 



'Okk;. desck. " Sori solitary, o\al, dirk brown, i iiiiii. in length; spores 

 brown, oblong, or slightly cla\ate, constricted,; epispore smooth, 

 thickened above, pedicels hyaline, 1-2 times as long as the spore, 

 40-70/iX i!^--4«- On leaves and twigs of Tcfradyiiiia cancscciis. Mt. 

 Davidson, Nevada, 7000 ft. 



Sori, round or oval, brown, scattered, solitary, or crowded 

 :and confluent; spores oblong, constricted, reddish-brown, 16- 

 24^/ by 40 6om; epispore smooth, rather thick, apex mostly 

 rounded, somewhat thickened; pedicel h^-aline, up to i6on long. 

 One-celled spores are not uncommon. Plate III., Fig. i6. 



