2 MONANDRIA. MONOGYNIA. salicornia, 



2. S.ambigm Mich.: perennial, procumbent, branch- 

 ing ; joints crescent-shaped, small ; spikes opposite and alter- 

 nate ; calyx truncate. Elliott Sk.l. p. 4. M i c h. FL I. 

 p. 2. Pursh FL\. p.^. Roem. ^ Schull. \. p, 39 

 & 41 ! {bis.) 



Root fibrous, creeping. S(em procumbent and ascending. 

 Flowers, cahjx, and Jilaments, as in the preceding. Anthers 

 purplish yellow. Germ, short, ovate. Styles 2 or o. Stigmas 

 2, obtuse, glandular. Elliott. \.c. ^ or ^ . 

 Hab. In sedgy salt-meadows. New-Jersey to Carolma. Pursh. 

 New-York and New- Jersey. Mu hlenberg. Intermediate 

 between S. Aer^crfa and yr«/fcosa Z.. Mich. This species 

 I insert on the authorities above quoted. I have found a Sali- 

 cornia on the sea-coast of Long-Island, which was a little fru- 

 tescent at the base, but it was evidently a variety of S. her- 

 bacea. 



2. HIPPURIS. L. 



Calyx entire, very small. Corolla o. Style received 

 into a groove of the anther. Stigma simple. Seed 1. 

 Ge7i. pi 15. Nutt. Gen. I. p. 3. Juss. p. 18. 

 Ann. du Mus. III. t. 3. f. 3. Roem. ^ Sc limit. 

 Gen. 32. La 772. III. t. 5. Nat. Ord. Naiades. 

 Ju s s. Mares- tail. 



H. vulgaris L. ; leaves verticillate, in eights, linear-lan- 

 eeolate, acute. Willd. Spec 1. p. 26. Mich, FL L 

 p. 1. Pursh Fl.l. p. 3. Eng, Bot, t. 763. Roem, ^~ 

 Schult. I. p. 41. 



Stem a foot or more high, the lower part floating, simple, articu- 

 late. Leave's almost linear, those on the emerged part of the 

 stem about three-fourths of an inch long, narrowed at the base, 

 with an obscure nerve along the middle ; submerged leaves 

 much longer and more crowded. Flowers situated in the 

 axils of the leaves ; calyx very minute, crowning the germen» 

 Stamen growing out of the side of the minute calyx ; ^lament 

 short, flat; anther oblong, formed of two rounded lobes, 

 through which the style passes, purple ; stigma simple, glan- 

 dulous. Ri/ie seed not seen. 

 Hab. In a pond near Schenectady, New- York, in company with 

 the remarkable Bidens Beckii.* August. In ditches and 

 small ponds. Canada to Pennsylvania. Pursh. In Penn- 

 sylvania, flowers in May I Muhlenberg.** 



The only American locality of this plant with which I am 

 acquainted, is that near Schenectady, discovered about four 



•• The specimen of Hippunis vulgaris in Muhlenberg's Herbari- 

 um is -probably not native, as the handwriting is the same as that on the 

 labels of many undoubted foreign specimens in that collection. 



