BULLETIN OF THE BUSSEY INSTITUTION. 225 
PERONOSPOREZ. 
PERONOSPORA OBDUCENS, Schroeter. On the cotyledons and young 
leaves of Impatiens fulva. Bussey Brook. Newton. 
PERONOSPORA PYGMZA, Ung. On leaves of Anemone nemorosa. Com- 
mon near Boston. 
Preronospora Ficarra, Tul. On leaves of Ranunculus acris. Bussey 
Woods. Newton. 
PERONOSPORA POTENTILLZ, De Bary. On leaves of Potentilla Nor- 
vegica. Newton. 
. 
UREDINEZ. 
Uromyces AvICULARI#, (Pers.). On leaves and stems of Polygonum 
aviculare. Newton. 
Uromyces Limonu, (Dub.). On leaves of Statice Limonium. Wood’s 
Hole. Aécidium, Uredo, and Teleutospores. ' 
Uromyces Junct, (Schw.). On Juncus effusus. Bussey Brook. On 
Spartina stricta. Wood’s Hole. | 
Uromyces Evrporsira2, C. & P. On Euphorbia maculata. Wood’s 
Hole. 
Uromyces striatus, Schreeter. On Medicago lupulina. Near Bus- 
sey Institution. 
PILEOLARIA BREVIPES, B. & C. On leaves of Rhus Toxicodendron. 
Common near Boston. 
Puccrnra Viotaz, DC. On leaves of Viola lanceolata. Newton. On 
Viola rotundifolia. Eastport, Me. 
PuccrntaA SAXIFRAGARUM, Schl. On cultivated species of Saxifrage 
in the Bussey Greenhouse. 
PuccintA XantTHII, Schw. On Xanthium strumarium. Gloucester, 
Brewster, and Wood’s Hole, Mass. 
* R@sTELIA AURANTIACA, Pk. On leaves and berries of Crategus 
Crusgalli. Newton. 
Rq@sTELIA corNUTA, Tul. On Pyrus Americana. Eastport, Me. - 
R@sTELIA CANCELLATA, Reb. On apple leaves. Common near 
Boston. 
Ra@sTELIA BOTRYAPITES, Schw. Common on leaves of Amelanchier 
Canadensis. Near Boston. 
Ra@sTELIA LACERATA, Tul. Common on species of Crataegus and 
Amelanchier, near Boston. 
R@STELIA TRANSFORMANS, Ellis. On Pyrus arbutifolia. Wood’s 
Hole. 
PopisoMA MACROPUS, Schw. Common on Juniperus Virginiana. Near 
Boston. 
PopisoMA FuscuM, Dub. Common on Juniperus Virginiana. Near 
Boston. 
* Vide p. 288. 
VOL. Il. 15 
