Shaker : Vascular Flora of Allegheny County. 29 



ARENARIA Linnceus. 



* A. serpyllifolia Linnnsus. 'Fhyme-leaved sandwort. 



Moon Township, Narrows Run, May, 1899. 



MCEHRINGIA Linnjeus. 



* M. lateriflora (Linnaeus). Blunt-leaved sandwort. 

 Arenaria lateriflora I.inna^us. 



ALSINE LinnKus. 

 STELLAR/A Linnaeus. 

 '•' A. media Linnieus. Common chickweed. 



* A. pubera (Michaux). Great chickweed. 



* A. longifolia (Muhlenberg). Long-leaved chickweed. 



* A. longipes (Goldie). Long-stalked chickweed. 

 ? A. uliginosa (Murray). Marsh chickweed. 



CERASTIUM Linnaeus. 



* C. viscosum Linnaeus. Mouse-ear chickweed. 



* C. vulgatum Linnaeus. Larger mouse-ear chickweed. 



* C. longipedunculatum]Muhlenberg. Nodding chickweed. 



* C. arvense Linnaeus. Field chickweed. 



Pittsburgh, " in a lawn, Oakland, June 4, 1888"; Prof. B. H. 

 Patterson. 



