136 Elatineae. 



1. Elatine hexandra Cand. Gall. 6. 609. Ejusd. Ic. 1. 

 14.^.43./.!. Ejusd.Prod.l.SQO. A. Braun.Syll,\, 



83. Mert, et Koch. Germ. 3. 68. Reichenh. PL 

 crtt. 5. 8. t 31*3. Koch. Synops. 1. 125. 



Foliis oppositis, breviter petiolatis, oblongis vel ob- 

 longo-spathulatis, obtnsis; floribus pedunculatis, tripeta- 

 lis, bexandris; seminibus leriter arcuatis. 



E. tripetala Smith. Engl Flor. 2. 243. 



E. Hydropiper Smith. Brit. 3. 1396. Schleehtend. Flor. 1. 

 230, in utroque ea^cl. syn. 



E. Hydropiper ^ Linn. Spec, 527. ( Vaill. Paris. t. 2. 

 /. 1.) Cand. Gall. 4. 771. 



Tillaea hexandra Lapierre in Journ. de phys, flor. 

 an XI. 



Birolia paludosa Bell. in Mem. Act. Tur. 1808. c. ic. 



Ad margines lacuum,nunc in ipsa aquajnunc 

 in terra uda. (Weifscnsee, Tempelhof [Schlech- 

 tend.], Hohen-Schoenhauscn [C. D. Bouche].). 

 Flo-yet aestate. O 



Stipulae lineari - subulatae , hyalinae, integrae vel ad 

 basim lobulo auctae. 



2. Elatine Hydropiper Linn. Spec. 132. Ejusd. spec. 

 572. ( Bua:b. Cent. 3. /. 37. /. 3. — excl. Vaill. et var, ^.) 

 Schkuhr, Handb.\.t.l09 b. Wahlenb.Suec.2io. Ales. 



Braun, Syll. 1. 83. Roth. Enum. 1. 194. Mert. et 

 Koch. Germ. 3. 66. Koch. Synops. 1. 125. 



Foliis opposilis, longe petiolatis, subelliptico-spathn- 

 latis, obtusis; floribus sessilibus vel brevissimc peduncu- 

 latis, tetrapetalis, octandris; seminibus uncinato-curvatis. 



E. Schkuhriana Drev. et Hayne, Bilderb. t. 71. 4. 

 Reichenb. Germ. 639. 



In locis inundatis humidis, ad ripas lacuum 

 et lacunarum. (Tempelhof, Weifsensee.) Floret 

 Junio — Augusto. O 



