66 



Pucciuia pulchella, Peck. 



Spots yellow or greenish-yellow, orbicular, rarely confluent ; sori small, 

 circinating, sometimes confluent, blackisli-brown ; spores .001'-0013' long, .0006' 

 broad. 



Upper surface of leaves of Rihes j)rostratum. North Elba. July. 



Pnccinia Cryptotaeniae, Peck. 



Spots small, pallid or yellowish, sometimes tinged with purple, dotted by the 

 sori, occasionally confluent ; sori minute, clustered, at first covered by the 

 epidermis, then surrounded by its pale ruptured remains which continue in 

 the form of a small pustule with a contracted subcircular opening at the apex, 

 reddish-brown ; spores subelliptical, scarcely constricted, crowned with a 

 hyaline pustule, .0011 '-.OOIG' long, .0006' broad. 



Under surface of leaves of Cryptotaenia Canadensis. North 

 Greenbush. June. 



Pnccinia Mariae-Wilsoni, Clinton. 



Amphigenous ; spots none ; sori scattered or clustered, unequal, reddish- 

 brown ; spores subelliptical, scarcely constricted, crowned with a pustule, 

 .0013'-.0018' long, .0007'-0008' broad. 



Leaves and stems of Claytonia Caroliniana. Buffalo, Clinton. 

 Knowersville. May. 



Pnccinia Lobeliae, Oerard. 



Sori minute, scattered or confluent, tawny-brown ; spores oblong-elliptical, 

 slightly constricted at the septum and easily separating into two parts, pale, 

 .0013'-0016' long ; pedicel short or obsolete. 



Under surface of leaves of Lobelia syphilitica. Poughkeepsie, 

 Gerard. The fragile spores are peculiar. 



Pnccinia obtccta, Peck. 



Cauline ; sori unequal, often very large, angular or orbicular, scattered or 

 confluent, slightly elevated, long covered by the epidermis, black ; spores 

 oblong or oblong-clavate, sometimes curved, constricted, obtuse or obtusely 

 pointed, .0018'-.0024' long, .0008' broad; pedicel colored, seldom half as long as 

 the spore. 



Stems of Scirpus validus and S.j)ungens. Watkins, Montezuma 

 Marshes and Albany. SeptemlxT and October. 



