132 POLYGONEiE. [Poij/gonum^ 



Hab. a. Canada. Pursh; Mrs Percivdl; to the Saskatchavvan and Great Slave Lake. Dr Richardson* 

 JDrummond. — /3. Marshy places of the Saskatchawan. Dr Hichardson. Drtimmond. N. W. America, 

 about Fort Vancouver and Walla-wallah, Tohnie ; and Straits of De Fuca. Dr Scouler, 



9, P. Persicaria (L.) ; annuum, floribus 6-aut S-andris, dl-aut-trigynis, achenio lenti- 

 cular! aut triquetro calyce abscondito angulis obtusis faciebus laevibus, calyce 4-aut 



5-partito, spicis ovato-oblongis s. sublinearibus, bracteis turbinato-infundibuliformibus 

 parvis, ochreis truncatis, foliis lanceolatis petiolatis sa;pe macula atra seniilunari v. 

 triangulari medio notatis. Meisn. Polyg. p. 68. — P. Pennsylvanicum. i,?— ^. lapathi- 

 folhim. L, — E, Bot t, 1382. — 7. minus; spicis angustioribus. 



Hab, «. Lake Huron, to the Saskatchawan and Hudson's Bay. Dr Richardson, Drurnmond «. and 



3. N. W. C. of America. Dovglas, Tolmic.~~y, Saskatchawan to Great Bear Lake. Dr Richardson, 



10. P. Hydropiper. L.—E. Bot. L 989. Ph. Am. \.p. 238 P. Mite. EIL—P. hydro- 



piperoides. Mx. 



Hab. Canada to the Saskatchawan. Dr Richardson. Drurnmond. 



11- •^* Virginianum (L.); perenne, floribus 5-andris digynis, calyce 4-partito, achenio 

 pyriformi compresso majusculo laevi, spicis virgatis subsimplicibus longis, ochreis brac- 

 teisque truncatis ciliatis angustis, foliis ovatis acuminatis cauleque erecto hirsutis. Meisju 

 Pofyg, p. 81. Ph. Am. 1./?. 270. 



^._ Hab. Canada. {Ph.) Dr Holmes. 



5 6. AVICUI.ARIA. 



12. p. aviculare. L.—E. Bot. t. 1252. Ph. Am. l./>. 269. 



Hab. Throughout Canada, to lat. 65*^, frequently with larger foliage and more erect stems. (P. erectum, 

 Willd.) Newfoundland and Labrador. Dr Morison. Miss Brenton. Sitcha. Bongard {^wh nom, P. 

 buxifoliiy Nutt.). N. W. America. Douglas. Tolmie.—A most variable plant, from two inches to a foot 

 or more in height or length, for the stems are sometimes erect, sometimes procumbent. Leaves from 2 or 3 lines 

 to 2 inches long. Nuttall says his P. huxifoHum (P. avic, latifol. Ms.) has 5 stamens, not 8, as is usual, 



13. P. Paronychia (Cham.); sufFruticosum, inflorescentia dense capitata, floribus 

 axillaribus in apicibus confertis-magnis 8-andriSj stylo germinis longitudine, stigmatibus 

 3 filiformibus brevibus, acheniolanceolato triquetro laevi, foliis lineari-Ianceolatis inaro-ine 

 revolutis, nervb subtus prominente canaliculato utrinsecus hirto, ochreis basi vaginantibus 

 longitudine foliorum. Cham, et Schlecht in Einncea^ 3. p. 52. Hook, et Am. in Bot. of 

 Beech. Voy. p. 158. — P. confertiflorum. Dougl. mst. 



Hab. N. W. America, in the sand of the sea-shore from California (Chamisso, Beechey), to the Straits 

 of De Fuca. Mr Menzies. Douglas.— X remarkably fine and very distinct species, discovered by Menzies 



during the voyage of Captain Vancouver. Flowers forming a large dense capitate spike The same, or a 



very nearly allied species, was found by Mr Drummond at Apalachicola in West Florida, 



14. P. tenue (Mich.); floribus axillaribus sessilibus solitariis majusculis, achenio 

 acutangulo faciebus ovatis medio sublaevibus nitidis versus angulos punctato-rugulosis, 

 ochreis capiUaribus deciduis, foliis lineari-filiformibus acutissimis (superioribus floriferis 



