Explanation of Plate II. 



39a. Puccinia andropogonis Schw. 



On Pentstemon hirsutus (L. ) Willd., from Indiana. 

 Five spermatia and four aecidiospores. 

 396. Puccinia andropogonis Schw. 



On Pentstemon albidus Nutt., from Kansas. 

 Four aecidiospores. 

 39c. Puccinia andropogonis Schw. 



On Pentstemon grandiflorus Nutt., from Nebraska. 

 Five spermatia and five aecidiospores. 

 39^. Puccinia andropogonis Schw. 



On Andropogon scoparius Michx., from Iowa. 

 Four uredospores and one teleutospore. 

 39c. Puccinia andropogonis Schw. 



On Andropogon scoparius Michx., from Indiana. 

 One uredospore and three teleutospores. 

 39/. Puccinia andropogonis Schw. 



On Andropogon scoparius Michx., from Indiana. 

 Two uredospores aud five teleutospores. 

 39^. Puccinia andropogonis Schw. 



On Andropogon furcatus Muhl., from Iowa. 

 Four uredospores and one teleutospore. 

 39A. Puccinia andropogonis Schw. 



On Andropogon furcatus Muhl., from Indiana. 



Two uredospores, one drawn as if opaque, and five teleuto- 

 spores. 

 39z. Puccinia andropogonis Schw. 



On Andropogoti furcatus Muhl., from Iowa. 



One uredospore, drawn as if opaque, and four teleutospores. 

 39/. Puccinia andropogonis Schw. 



On Andropogon furcatus Muhl., from Kansas. 

 Two uredospores and five teleutospores. 

 2>9k. Puccinia andropogonis Schw. 



On Andropogonis hallii. Hack., from Nebraska. 

 Two uredospores and two teleutospores. 



