THE AMERICAN MIDLAND NATURALIST. 



Hieracium panicidatum L. Panicled Hawkweed. Vicinity C. 

 S.H.— J.A.H. 



Hieracium scabn^um Michx. Rough Hawkweed. Vicinity C. 

 S.H.— J.A.H. 



Hieracium venosum L. Rattlesnake-weed. Vicinity C.S.H. — 

 J.A.H. 



Iva frutescens L. Marsh Elder. C.S.H. vicinity, salt marsh- 

 es. — Jelliffe. 



Lactuca canadensis L. Wild Lettuce. Vicinity C.S.H. — Jel- 

 liffe. 



Lactuca saligna L. Willow Lettuce. Woods C.S.H. — Jelliffe. 



Lactuca spicata (Lam.) Hitchc. Tall Blue Lettuce. Jones 

 Marsh, C.S.H.— Jelliffe. 



Lactuca virosa L. Prickly Lettuce. Vicinity C.S.H. — Jelliffe. 



Lapsana communis L. Succory Dock-cress. Road to Sandspit, 

 C.S.H.— Jelliffe. 



Leontodon Taraxacum L. Dandelion. Vicinity C.S.H. — Jel- 

 liffe. 



Nabalus «//>^s(L.)Hook. Rattlesnake-root. Common through- 

 out island. — Jelliffe. 



Nabalus altissimus (L.) Hook. Tall White Lettuce. Common 

 L.I.— Jelliffe. 



Nabalus racemosus (Michx.) D.C. Glaucous White Lettuce. 

 Not infrequent on L. I. — Jelliffe. 



Nabalus trifoliolatus Cass. Tall Rattlesnake-root. Road to 

 Eugenics Record Office. C.S.H. 



Sonchus arvensis L. Corn-Thistle. C.S.H. — Jelliffe. 



So-nchus asper (L.) Hill. Spring Sow Thistle. Vicinity C. 

 S.H.— Jelliffe. 



AMBROSIACEAE. 



Ambrosia elatior L. Wild Tansy. E. Shore, C.S.H. — Jelliffe. 



Ambrosia trifid-a L. Great Ragweed. — Jelliffe. 



Xanthium americanum Walt. American Cocklebur. Com- 

 mon throughout island. — Jelliffe. 



Xanthium commune Britton. Cocklebur. Vicinity C.S.H. — 

 Jelliffe. 



Xanthium pennsylranicum Wallr. Pennsylvania Clotbur. — 

 Jelliffe. 



Xanthium spinosum L. Spiny Clotbur. Common throughout 

 island. — Jelliffe. 



—210— 



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