32 Annals of the Carnegie Museum. 



* M. sylvestris Linnaeus. High mallow. 



Pittsburgh, old gardens, 31st Ward, 1886. 



II M. Moschata Linnaeus. Musk mallow. 



Harrison Township, Freeport road, near Wormley's barn, July, 

 1895. 



SID A Linnaeus. 



* S. spinosa Linnaeus. Prickly sida. 



ABUTILON Gaertner. 



* A. Abutilon (Linnaeus). Velvet-leaf. 

 A. Avicennic Gaertner. 



HIBISCUS Linnceus. 



* H. Trionum Linnaeus. Venice mallow. 



Harrison Township, Breckenridge's hillside, Natrona, July 25, 

 1895. 



Swissvale, .\ugust 19, 1900, John M. Milligan. 



TILIACE^ Jussieu. 



LINDEN FAMILY. IV-73. 



TILIA Linnaeus. 



* T. Americana Linnaeus. Bass-wood. 



f T. heterophylla Ventenat. White bass-wood. 



LINAGES Dumortier. 



FLAX FAMILY. IV-52. 



LINUM Linnaeus. 



* L. Virginianum Linnreus. Wild yellow flax. 



