106 MICHIGAN ACADEMY OP SCIENCE. 



WASHINGTONIA Raf. OSMOBRHIZA Raf. 



*1566. W. Clayton! (Michx.) Britton. Woolly Sweet-cicely. OsmwrMza brevlstylis 

 DC. The prevailing species, Winchell; probably true of counties along the Huron shore. 

 Cheboygan Co., B. & K.; Keweenaw Co., O. A. Farwell; Alma, Ann Arbor, C. A. 

 Davis. Common. Th. 



*1567. W. longistylis (Torr.) Britton. Smoother Sweet-Cicely. Osm,orrMza longi- 

 stylis DC. Alma, C. A. Davis; Bay Co., G. M. Bradford. Common. Th. 



CONIUM L. 



*1568. C. maculatum L. Poison Hemlock. St. Clair Co., C. K. Dodge. Infrequent 

 in C. & S. Common at Mackinac, Winch. Cat. 



SIUM L. 



*1569. S. cicutaefolium Gmel. Water-Parsnip. Clinton Co.; S. Mich., Winch. Cat.; 

 Alma, Ann Arbor, C. A. Davis. Frequent. Th. 



ZIZIA Koch. 



*1570. Z. aurea (L.) Koch. Golden Meadow-Parsnip. Low ground. Common. Th. 



1571. Z. cordata (Walt.) DC. Heart-leaved Alexanders. Flint; Put-in-Bay and 

 S. W., Dr. Wright; Barren Lake, Cass Co., C. F. Wheeler. Rare. C. & S. 



CARUM L. 



1572. C Copticum (L.) Benth. Ballast grounds. Detroit, O. A. Farwell. 

 *1573. Carui L. Caraway. Naturalized in many places. 



CICUTA L. 



*1574. C. bulbifera L. Bulb-bearing Water Hemlock. Swamps. Common. Th. 

 *1575. C. maculata L. Spotted Cowbane. Beaver Poison. Musquash Root. Th. 



DERINGA Adans. CBYPTOTAENIA DC. 



*1576. D. Canadensis (L.) Kuntze. Hornwort. . Cryptotaenia Canadensis DC. Lo\r 

 woods. Common. C. & S. 



BERULA Hoffm. 



1577. B. erecta (Huds.) Coville. Cut-leaved Water Parsnip. B. anffustifolia Mert. 

 & Koch. Winchell, and A. Gray; Kalamazoo, Tuthill; Manistee, F. P. Daniels. Infre- 

 quent. S. 



HYDROCOTYLE L. 



*1578. H. Americana L. American Marsh-Pennywort. Common in C.; Alma, C. A. 

 Davis. L. P. 



*1579. H. umbellata L. Umbellate Marsh-Pennywort. Woodward Lake, Ionia Co.; 

 S. Mich., Wright Cat.: Alma, C. A r Davis. Either grows on sandy shores or is wholly 

 aquatic with floating leaves. 



ERIGENIA Nutt. 

 *1580. E. bulbosa (Michx.) Nutt. Harbinger of Spring. Common. C. & S. 



CORNACE^ Link. Dogwood Family. 

 CORNUS L. 



*1581. C. alternifolia L. f. Alternate-leaved Cornel. Banks. Frequent. The dead 

 stems bright yellow. Keweenaw Co., O. A. Farwell. Rare in Cheboygan Co., B. & K.; 

 Alma, Ann Arbor, C. A. Davis. Th. 



*1582. C. Amomum Mill. Silky Cornel. Kinnikinnik. C. sericea L. Near Detroit, 

 O. A. Farwell: Alma, Ann Arbor, C. A. Davis. Frequent. C. & S. 



1583. C. asperifolia Michx. Rough-leaved Dogwood. Belle Isle, O. A. Farwell; 

 Homer, C. F. Wheeler. 



