474 Annals of the Carnegie Museum. 



sented by Allegheny County specimens in the Pennsylvania Herbarium 

 of the Carnegie Museum : 



Dryopteris spinulosa TRetzius) Kuntze. 



The t\|)ical form of this species is much less common than D. 

 spinulosa iiUcniicdia (Muhlenberg) Underwood, but occasionally 

 occurs here. 

 Lycopodium obscurum Linn?eus. 

 Pinus rigida Miller. 



J. A. Shafer, Moon Township, near Carnot. Ajjril 25, 1904. 

 This species (the Pitch Pine) is now quite rare in Allegheny 

 County, but was ])robably formerly quite well distributed. I'here 

 are now specimens in the Herbarium from neighboring counties, 

 Butler, Armstrong, and Westmoreland. 

 Eragrostis pectinacea (Michaux) Steudel. 



John Ferguson, Highwood Cemetery, Allegheny City. September 

 12, 1889. 

 Triticum sativum turgidum Hackel. 



The Miracle Wheat (^Triticum coiiipositian Linn?eus) occasionally 

 occurs as a fugitive in cultivated ground about Pittsburgh. 

 Carex hystricina Muhlenberg. 



Mifflin Township, near Howard Street, Gustave Guttenberg. 

 June, 1 89 1. 

 Carex pedicillata (Dewey) Britton. 

 Carex rosea radiata Dewey. 



Near Allegheny Cemetery, Pittsburgh. J. A. Shafer, July, 1884. 

 Leet Township, near Fair Oaks Station, Gustave Guttenberg, 

 June 24, 1892. 

 Cyperus esculentus Linnreus. 



Not uncommon. 

 Eleocharis acicularis (Linnneus) Rcemer & Schultes. 

 Cypripedium parviflorum Salisbury. 

 MoUugo verticillata Linnaeus. 



.\ common weed of sidewalks, waste ground, etc., about 

 Pittsburgh. 

 Ranunculus repens Finna^us. 



In lawns, Forbes St., near Craft Ave., Pittsburgh. O. E. 

 Jennings, July 27, 1904. Adventive from Furope and becoming 

 troublesome in lawns, etc. 



