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214 CHLORIS MELV^ILLIANA.

CLila, altero latere margine perangusto aucta, iitraque extremitate areola iiigricanti iiotata.

Obs. Species proxinia P. sudeticee WiJlden. sj), pi. 3, p. 209, quae differt sta.tura inajore, caule glabro, foliomm lobis linearibus mciso-piiinatifidis ; caulinis petiolo baud dilatato, corollse labio iiiferiore manifeste dentato. P. sude- tica Bichardson in FranHms jour. p. 742, a sudetica vera vix diversa est nisi corollse labio superiore breviore, den- ticulo longiore, caule siibunifolio^ nee species distincta videtur.

��POLYGOiNEzE.

45. Polygonum viviparum, Limi. sp.])L ed. 2. p. 516, /. lapp. n. 152. Gmel. sib. 2, p. 44, n. 34, t. 7,/ 2. Willden. sp. pi. 2,jy. 441. Fers. syn. I, p. 439. Smit/t hrit. l,p. 428. Fn^l. bot. 669. Fl. Loud, new ser. 1, t. 81. Waldenb. lapp. 99. Flor. Ban. 13. Bvensk. bot. 336. Marsch. taiir-caucas. \^ p. 301. Fursh. am. 1, p. 271. Giesecke Greenl. in Edin. en cyclop. Hooker in Scoresby's greenl. p. 410. Richardson in FranJdin^s journ. p. 737.

Natter Wurtz, Marten's Spitzb. lib. 3, cap. 1 ,t. I, a.

��OXYRIA.

OxYRiA, Hill, vey. syst. 10, />. 24 (genus omnino arti- ficiale. Hill I. c). Be Cand. fl. franc. 3, p. 379 (Rumicis subgenus). Fr. in Foss' voy. ed. 2, vol. 2, p. 192 (Ante, p. 177) (genus distinctuni). Campdera rumew, p. 153. Hooker Scot. p. 99.

Char. Gen. Ferianthiwn tetraphyllura (duplici serie). Stamina 6. Styli 2. Stigmata penicillata. Aclienium lenticulare, membranaceum, utrinque alatum, perianthio infra cinctum. Embryo centralis.

Obs. Genus propius accedens Rheo quam Rumici, ab utroque satis distinctum.

A Rheo differt numero binario perianthii et stylorum,

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