BEAL OX MICHIGAN FLORA. 127 



*1994. L. spicata I Lam.) Hitche. 'lull IJlue Lettucp. L. Iriicopfiaca A. Gray. Fre- 

 quent. Til. 



1995. L. spicata integrifolia (T. &. G.) Britton. L. Irurophaea integrifolia T. & G. 

 Belle Isle, Detroit. C. F. Wlieelcr. 



*1995a. L. virosa L. I'rickly Lettuce. Usually given tlic iianip /,. fic<iruil(i T... which 

 has pinnatifid leaves. Common. 



CREPIS L. 



*1996. C. tectorum L. Xarrow-leaved Hawksbeard. Introduced. 



HIERACIUM L. 



•1997. H. Canadense Michx. Canada Ha^vk^veed. Woods. Frequent. Th. 

 •1998. H. Gronovii L. Hairv Hawkweed. Dry soil. Ionia Co.; Flint; Macomb Co.; 

 S. \A'. jNIich.. Wriglit Cat.; Alma. Infrequent. C. & S. 



1999. H. longipilum Torr. Lontr-bearded Hawkweed. Fields. Macomb Co.; Trav- 

 erse City, S. W., Wright Cat.; Grand Rapids, Coleman; Algonac, W. S. Cooper; Tuscola 

 Co., C. A. Davis. Scarce. L. P. 



2000. H. Marianum Wiild. ^laryland Hawkweed. Shore of Grand Traverse Bay, 

 C. F. Whoolor. 



*2001. H. paniculatum L. Panicled Hawkweed. Macomb Co.; S. Mich., Wright 

 Cat. Scarce. C. & S. 



2002. H. Pilosella L. Mouse-car Hawkweed. Introduced at Benzonia, G. A. Clark. 



•2003. H. scabrum Michx. Eough Hav, kwced. Woods; Alma. Common. Th. 



•2004. H. umbellatum L. Narrow-leaved Hawkweed. Marquette, C. F. Wlieeler. 



*2005. H. venosum L. Rattlesnake-weed. Dry soil in pine woods, or on oak land. 

 Abundant at Puint aux Pins, at the entrance to Lake Superior, Macoun, Can. Cat.; 

 Port Austin, Ann Arbor, C. A. Davis. Frequent. 



NABALUS Cass. Prenanthes Vaill. 



*200U. N. albus (L.) Hook. Rattlosnake-root. Prenaiithcs alba L. Woods. Com- 

 mon. Th. 



•2007. N. altissimus (L.) Hook. Tall ^^'hite Lettuce. Prciuintlirs uUhsUna L. Rich 

 woods. Frequent. Th. 



•2008. N. racemosus (Michx.) DC. Glaucous White-Lettuce. Prcnanthes racemosa 

 Michx. Lenawee Co.. G. F. Comstock; Flint; Macomb Co.; shore of L. Mich., near 

 Sitting Rabbit. Winch. Cat.; S. W., Wright Cat.; Cheboygan Co.. Beardslee, Keweenaw 

 Co.. Farwell; Kawkawlin, Ann Aibor, Grass Lake, Bay Port, C. A. Davis. Rare. Th. 



2009. N. trifoliatus Cass. Tall Rattlesnake-root. 'Washington, Dr. D. Cooley. 



AMBROSIACEiE Reiclienb. Ragweed Family. 



IVA L. 



2010. I. xanthiifolia (Fresen.) Nutt. Marsh Elder. Highwater-shrub. Keweenaw 

 Co., O. A. Farwell. The farthest station east known. 



AMBROSIA L. 



•2011. A. artemisiaefolia L. Roman Wormwood. Ragweed. Hog-weed. Bitter- 

 weed. Roadsides. Introduced from the west. Abundant. Th. 



2012. A. psilostachya DC. Manistee, F. P. Daniels; shore of Lake Huron, C. K. 

 Dodge; Keweenaw Co., O. A. Farwell. 



•2013. A. triiida L. Great Ragweed. Common. Low grounds along Grand and 

 Maple Rivers; northward to Keweenaw Co., O. A. Farwell. 



2014. A. trifida integrifolia T. & G. Low land. Keweenaw Co.. 0. A. Farwell. Th. 



XANTHIUM L. 



*2015. X. Canadense Mill. Common in waste places and along river banks. 

 201,5a. X. commune P>ritton. Britton and Brown's Flora. 



2016. X. echinatum Murr. A'. Cunadcnse echinatum A. Gray. Shores of Great 

 Lakes. 



