15 Feb. 1906.] 



Mycological Bulletin No. 52 



207 



Oq - '" 



Fig. 103. — Ae-cid'-i-um im-pa-ti-en'-tis. — The Yellow Cluster-cups of Impatiens, 

 the Wild Touch-me-not, or Jewel-weed. At b is shown a ripe "cup" and at c one 

 of its gerininriting spores. 



