Polygonaceae. (j3. 



§. subiilatus Reching. in o. b. Z. 1892 p, 51. — It ohtmifoliux 

 Bald. riv. coll. bot. all. 1895 p. 68. — Valvis triangularibus, longe 

 subulato-dentatis, dentibus valvae longitudine aequilongis. — Exsicc. : 

 Bald. it. alb. pir. III. n. 86. 



y. silvestris Wallr. sched. p. 101 pro sp.; Koch. syn. p. 614. 

 — Valvis trianguhiribus in apicem protractis, integris vel obsolete den- 

 tatis. — A jR. patientin et IL fp-aeco, quibuscum valvis integris vel 

 obsolete dentatis convenit, valvis elongatis in apicem protractis, basi 

 non cordatis, onniibus calliferis facile distinguitur. — Exsicc. : Sint. 

 it. thessal. n. 689 sub i?. orientali. 



In ruderatis, pratis regionis inferioris et montanae. Thessalia: pr. 

 Sophades, Aivali, Pharsahi, Volo (Haussk.); Peloponnesus (Sibth.): pr. 

 Mistra, Amyclea (Chaub); — /J. Epirus: pr. Prevesa (Bahl.); — 

 y. Thessalia: pr. Chaliki (Sint.). — Jun. Aug. -21-. 



5 X H. R. erispus X obtiisifolius Meisn. in UC. p. XIV. 

 p. 54; Haussk. symb. p. 60. — R. acutus L. sp. p. 835. — Fi. pra- 

 tensis M, u. K. deutschl. fl. II. p. 609. — Differt a R. crispo foliis 

 cordato-oblongis, minus crispis et valvarum dentibus triangulari-subulatis; 

 a M. ohtusi-folio foliis angustioribus, crispis et valvis brevioribus la- 

 tioribusque, basi subcordatis, breviter dentatis. 



In planitie thessala pr. Pharsalus, Volo (Haussk.). — N. v. 



7 X 8. R. eonglonieratus X obtiisifolius (B. ahortivus) Ruhm. 

 in Jahrb. bot. Gart. Berlin I. p. 253; Haussk. symb. p. 60. — Differt 

 a i?. congJomerato valvis oblongis, basin versus denticulatis ; a H. oh- 

 tusifoJio habitu, racemis foliatis, laxis, valvis minoribus, oblongis, non- 

 nullis integris. — Exsicc: Haussk. it. gr. a. 1885. 



Thessaha : in ruderatis pr. Volo (Haussk.). 



9. R. uepaleiisis Spreng. syst. II. p. 159; Haussk. in bot. Ver. 

 Thiiring. V. p. 61; symb. p. 58. — Exsicc: Haussk. it. gr. a. 1885. 



Caule erecto, in paniculam ramosam, parfce inferiori excepta aphyl- 

 lam abeunte, ramis erecto-patuhs; foliis inferioribus petiolatis, cordato- 

 ovatis vel oblongis, acutiusculis, superioribus lanceolatis, subsessihbus ; 

 verticillastris remotiusculis; valvis ovato-oblongis, ad vel ultra medium 

 in dentes crebros, subulatos, apice eximie hamatos fissis, inaequaliter 

 calligeris vel unica tantum callosa. — Species valvis longe hamato- 

 subulatis eximia. 



In derelictis supra monasterium Korona in vicinia ruinarum ca- 

 stelli turcici in Pindo dolopico (Haussk.) ; locus hucusque unicus. — 

 Jun. Jul. 2j_. 



OO Biennes ; pedicelli brevissimi. 



10. R. pulclier L. sp. p. 336; S. et S. pr. L p. 245; Ch. et B. 

 exp. p. 1U7, Fl. pelop. p. 24; Raul. cret. p. 847; Bois, fl, or. IV. 

 p. 1012; Form. in D. bot. Mon. 1890 p. 12, in Ver. Brunn 1897 

 p. 27; Haussk. symb. p. 59, v. microdon; Hal. in o. b. Z. 1899 

 p. 25. — li. divaricatus L. sp. ed. 2 p. 478; Marg. et R. fL Zante 



