NOTES ON OUR LOCAL PLANTS 281 
Family 4. SALVINIACEAE Reichenbach. Consp. 30. (1828.) 
AZOLLA Lamarck, Encycl I: 243, (1783.) 
Azolla caroliniana Willd. Sp. Pl. 5: 541. (1810). 
Very abundant in fall in back waters of St. Joseph River, 
especially in an oxbow loopnear St. Mary’s Academy, Notre Dame, 
Ind: \No..1ro116. 
Family 5. EQUISETACEAE Michx. Fl. Bor. Am. 2: 281 (1803) 
BOGOISELUM Pliny. 1.-26,-C: B: 
Hippuris Disocorides, of the Greek authors*, also of some 
other pre-Linnaean authors, Brunfels, Tragus, Amatus Lusitanus, 
Dodonaeus, etc. Equisetum Tour. Els. Bot. p. 424, (1694) also 
Inst. Rei Herb. p. 532, (1700). Linn. Syst. Nat, (1735); Gen PI. 
Pos22ncis 7), ior. Chil p.a7a,) (1737)s Sp kls pyreer, (753). 
Equisetum arvense (C. Bauhin), Linn., Sp. Pl. p. 1o61. (1753). 
Common everywhere and observed in every county. The 
plant is so abundant and crowded in places in St. Joseph County 
as to cover large patches preventing growth of other plants. No. 
10117 Notre Dame, Ind. 
Equisetum fluviatile Linn., Sp. Pl. 1062 (1753). 
Equisetum limosum Linn. do. 
Common in Tamarack swamps. . No. 2777. two miles W. of 
Woodland (St. Joseph Co.) No. to118 Hick’s Crossing near 
Hudson Lake, (Laporte Co.) Also in Porter Co... Near Mineral 
Springs and Tamarack. Near Stephensville (Berrien Co.) also 
at Chain Lake and (St. Joseph Co.) Lakeville near Pine, Ind. etc. ete. 
Reported from Lake Co. [Hill] also [Umbach]. 
Equisetum hiemale Linn. Sp. Pl. p.*1062 (1753). No. 10119 
Notre Dame. Found throughout the region by me. Whiting, 
Ind. [Higley & Raddin]. 
Equisetum laevigatum A. Br. Engelm. A.m Jr. Se. 46:87, (1844) 
No. 2807 East Chicago, Ill. (Lake Co.). N. L. T. Nelson, also 
Lake Co. [Hill]. Millers, [Higley & Raddin]. 
*Hippuris was used by Dioscorides, 4: 47, for E. limosum Linn. More- 
over the Hippuris Dioscorides 4: 46 is Ephedra fragilis. 
The word Hippuris was used by some of the Greeks for the plants called 
now Equise‘um arvense. The use of the former name for a genus of 
phanerogams as used by Linnaeus is objectionable. 
