Shafer : Vascular Flora of Allegheny County. 57 



TRIOSTEUM Linnreus. 



* T. perfoliatum Linneeus. Horse-gentian. 



SYMPHORICARPOS Jussieu. 



* S. racemosus Michaux. Snowberry. 



Only as an escaped species with us. 



* S. Symphoricarpos (Linnaeus). Coral-berry. 

 6\ vulgaris Michaux. 



Escaped from old gardens. 



LONICERA Linnjeus. 



* L. glaucescens Rydberg. Douglas' honeysuckle. 



Moon Township, Wm. Tomlinson's woods, May, 1897. 



* L. sempervirens Linnaeus. Trumpet honeysuckle. 



Harrison Township, McVVilliams' Hollow, near Natrona, June, 



1895. 



* L. Japonica Thunberg. Japanese honeysuckle. 



Occasionally escaped. 



* L. ciliata Muhlenberg. American fly-honeysuckle. 



Shaler Township, near P. and W. R. R. tunnel, May, 1S86. 



DIERVILLA Moench. 



* D. Diervilla (Linnaeus). Bush honeysuckle. 

 D. trifida Moench. 



Hulton, "on river bank, 1888," Dr. Adolph Koenig. 



RUBIACE^ B. Jussieu. 



MADDER FAMILY. V-34. 



HOUSTONIA Linnaeus. 



* H. coerulea Linnteus. Bluets. • 



