14«g c S^NECIO ^- (Groundsel, Ragwort, Squaw-Wccd1 



489 S. VULGARIS L. Waverly. Becoming a pst 



1490 S. OBOVATUS Muhl. Spring Brook 



1491 S. AUREUS L. (Golden Ragwort.) Common 



1492 S. BALSAMiTAE Muhl. Pocono Mountain. Prof. PorUr. 



140, A . ARCTIUM L. (Burdock) 



1493 A. MINUS Bernh. (Common Burdock.) Very common. 



idOA T. ECHINOPS L. (Globe Thi.tle) 



CARDUUS L. (Plumelcss Thistle) 

 1495 C. CRiSPUs L. Hebrew Cemetery. Duninore. Prof. R. S. Davis. 



CIRSIUM Hill. (Common or Plumed Thistle) 

 496 C. LANCEOLATUM Hill. (Common or Bull Thistle.) Very common 



1497 C. DISCOLOR Spreng. Frequent near Pittston. 



1498 C. MUTicuM Michx. Monroe County. 



1499 C. PUMiLUM Spreng. (Pasture or Bull Thistle.) Common 



1500 C ARVENSE Scop. (Canada Thistle.) Very common. 



CENTAUREA L. (Star Thistle) 



1501 C. CYANus L. (Bachelor's Button.) -X frequent escape. 



CICHORIUM L. (Chicory) 



1502 C. INTYBUS L. (Common Chicory.) Waverly. Factoryville. Occa- 



sional elsewhere. 



KRIGIA Schreb. (Dwarf Dandelion) 



1503 K. viRGiNicA Willd. Taylor woods, Dunmore, Elmhurst Boulevard. 



Frequent. 



1504 K. AMPLEXicAULis Nutt. (Cynthia.) Starlight. Stroudsburg, Camp- 



bell's Ledge. Not common. 



LEONTODON L. (Hawkbit) 



1505 L. AUTUMNAL! s L. (Fall Dandelion. Arnica.) Linen farm. Waverly 



Infrequent. 



PICRIS L. 



1506 P. HiERAcioiDES L. (Hawkwccd Picris.) Stroudsburg. Prof. Porter 



1507 P. ECHioiDES L. (Ox-Tongue.) North Blakely street. Dunmore. 



TRAGOPOGON L. (Goat's Beard) 



1508 T. poRRiFOLius L. (Salsify. Oyster Plant.) An occasional escape 



1509 T. pRATENsis L. (Goat's Beard.) Has become quite widely di»- 



tributed. 



TARAXACUM Ludwig. (Dandelion) 



1510 T. OFFICINALE Wcbcr. (Common Dandelion.) Common every wiicrr 



1511 T. ERYTHROSPERMUM Audrz. ( Red-Sccdcd Dandelion.) Monroe 



County. Prof. Porter. 



71 



