4i56 OCTANDRIA TRIGYNIA^ 



tis, marginibus et nervo j glabrous, with pellucid 

 dorsali scabris. E. j dots^ the margin and mid-* 



. rib scabrous. 



P. persicaria? Walt. p. 131, 



P* Hjdropiper, Mich. 1, p. 238. 



P, Hjdropiperoklesj Pursli, 1. p. 270, 



Hoot perennial, somewhat creeping. Stem about 2 feet long? slen- 

 der, branchings glabrous, decumbent, with the summit erect. Leavei^ 

 yery acute, with a silken lustre, ending at base in a short compressed 

 sheathing petiole. ^ Stipules truncate, pubescent. Flotvers in 1 or 2 

 aimple, slender spikes ; fascicles generally 3 flowered, the lower ones 

 i:emote. Corolla white, the segments obtuse, dotted. Style as long 

 as the stamens. Stigmas capitate. Seed 3 angled. 



Grows in ditches and ahallow ponds j very common* 

 Flowers July— September, 



As it has been deemed correct to dron Michaux's trivial name of 

 Hydropiperoides from tlie species to which he affixed it, it would 

 be doubly incorrect to apply it> as Pursh has done, to another species. 



i 



8. MitE. Pers. 

 ^ P. floribus subcohfer- I . Flowers somewliat 

 tis,8.andris,semitrigyms; | crowded, octandrous, 

 ochreis hirsutis ciliatis- with the style 3 cleft 5 

 que ; foliis lanceolatis, | stipules hirsute and cili- 

 acuminatis, integerrimis, ate ; leaves lanceolate, 

 pilosis. E. I acuminate, entire, hairy. 



Persoon Syn. p!. 1. p. 446. Pursh, 1. p. 270. 

 r. Hydropiperoides, Micb, 1. p. 239. 

 P. barbatum, Walt p. 131. 



\oh!i.\tlT^K'''^ ^""'^ T^^^ frequently taking root at the lower 

 icuminif /^^ ^T'^ *"^'^^*^« the summit. Leaves, slightl v 



by a onl fnn ^" «' -f ^"^ '•^^ ^^^^ ^«"S' ^^U l^airj, and terminated 

 ed ^braft/lT' K r^-'/-:?' ^^"^Pi^ 5 fascicles gi^erallv 4 flower- 

 CorduMe t ^^f ' V'Ji'^^' «f the individual flower's glabrous. 

 S" angled.' ^^' '^'"'^"' ^^^"^ *^« ^^^'^^^^- «*%mas capitate. 



GrOsvs in ditches and ponds. 



* lowers July—September. 



9. Incarnatum. E 



P floril,us subconfevtis, I Flowers somewW 



difi '^""'^/S-y »'« ; Pf ■ crowded, hexandrous, 



duflcuhs punctatts ; och- with the style 3 cleft '; 



^'rt 1 



A 



