270 OCTANDRIA TRiGYNiA. Polygonum, 



ris, caulibus stricte-ramosissimis striatis. — Mich. Ji. 

 amer. 1. p. 237- 



P. erectum. Wiild. sp. pL 1. p. 450 ? 



In cultivated grounds : Pensylvania and Kentucky. O . 

 June — Aug. v.v. Flowers on short pedicels^ green- 

 ish-white. 



tmue. 4. P. pumilum ; foliis longe-linearibus striclis acuminatis, 



ochreis tubulosis apice villosisj caule gracili erecto ra- 

 nioso acutangulo, floribus alternis subsolitariis. — 

 Mich. Ji. amer. 1. p. 238. 

 P. barbatum. Ifalt. Ji. car. \3\ } 



In sandy fields and pine-woods : Canada, New Jersey, 

 and Carolina? ©. July, Aug. v.v. Not above six 

 inches high, very slender j flowers small, white. 



** Spica gracili. 



Hydropipe- 5. P. floribus 8 andris semi-3-gynis, foliis lanceolatis gla- 



roides. bris, ochreis laxis glabris apice ciliatis maculatis, spi- 



cis filifonnibus debilibus subcernuis, bracteis remo- 



tiuscule alternis. — Mich. Ji. amer. 1. p. 238. suO 



P. Hydropiperide. 



In inundated and exsiccated places ; common : Canada 

 to Carolina. ©. Aug. Sept. v.v. Flowers white ; 

 taste and appearance of P. Hydropiper, but different 

 in the flowers. 

 mite. 6. P. floribus 8-andris senii-3-gynis, foliis anguste larceo- 



latis subhirsutis, ochreis hirsutis promisse ciliatis, spi- 

 cis linearibu?, bracteis ciliatis subimbricatis. — Pers. 

 syn. 1 . p. 446. 



P. hydropiperoides. Mich. Ji. amer. \.p.23g. 



In inundated places, along ditches and ponds : Pensyl- 

 vania to Carolina. O. June— Sept. v.v. Flowers 

 pale purple; leaves not acrid. 



hirsutum. 7. P. floribus 8-andris semi-3-gynis approximatis, foliis ses- 



silibus lanceolatis, pedunculo elongato distachyo, s\n- 

 cis linearibus, caule adscendente hirsuto. — If^alt. Ji. 

 car. 132. Mich.fl. amer. 1. p. 239. 

 In low wet places and in ditches : Lower Carolina and 

 Virginia. 0. July— Sept. v.v. 



virginianum. 8. P. floribus 5-andris 2-gynis inaequalibus, foliis lato-ova- 

 libus, spiels longissime virgatis, floribus remotis. — 

 JVilld. sp. pi. 1. p. 442. 

 In shady woods : Canada to Florida. 1/ . June, July. 



