1014 POLYGONE.E. RumeOD. 



Hab. in Egypto ad lacum Menzaleh (Ehrenb I), Cataoniii ad radices Beryt- 

 dagh (Hausskl), Grusia (Wilhelmsl), Assyrii circa Mossul (Noe! Hausskl), 

 Babylonia ad Bagdad (Olivl Noe 10961), Bassora (HausskH, regno Mascate 

 Arabiic (Auch. 52S1I), Affghania (Griffl), Belutschia (Stocksl). 



Facile ab affini R. palustri foliis in petiolum uou attenuatis distinctus. R. 

 Ucranicus Besser in ditione non obvius est planta omnibus partibus niulto 

 tenuior, pedicellis tenuibus elongatis. Var. ]3. a cl. Meisner cum R. 'pulchri 

 formis confusa fuit. 



Ar. Geogr. India borealis. 



19. R. palustris (Smith Fl. Brit. l, p. 394) biennis, caiile erecto 

 siilcato Iblioso paniculalo, foliis radicalibus lanceolato-linearibus in 

 petiolum brevem attenualis acutis superioribus et floralibus verlicil- 

 lastra superantibus lineari-lanceolatis acuminatis et linearibus, ver- 

 ticillastris racemosis remotiusculis, pedicellis reflexis fructu parvo 

 sublongioribus infra medium articulatis, valvis rhombeis ulrinque 

 setaceo-bideritalis apice lanceolatis integris omnibus calliferis, denli- 

 bus vhIv.t, longitudine brevioribus @. Ic. Fl. Dan. tab. 1872. 



Hab. in limosis et paludosis, Macedonia (Frivl). 



Ar. Geogr. Europa borealia et media a ScaudinaviA ad Rossiam, Gallia, 

 GermaniH, Italia boreali, regione Danubiali, Songaria, Sibiria. 



20. R. comosus (Forsk. Fl. Eg. Arab. p. 76) annuus subacaulis 

 a collo prolifere et breviter ramosus, foliis petioliilis basi cuneatis 

 radicalibus oblongis obtusis , verticillastris in spicas densissimas 

 cylindricas centralem in coUo sessilem laterales ramos terminantes 

 congestis omnibus folio lanceolato-lineari flores longe superanti 

 suffultis, pedicellis tenuibus infra medium articulatis fructu minimo 

 apquiloiigis, valvis triangularibus acuminatis reticulatis denlibns 

 utrinquc 2-3 setaceis valva multo longioribus, valva exteriore grosse 

 eallifera ©. R. JEgyptiaciis L. Sp. I, p. 477. 



Hab. ad limuni exsiccatUm Nili in Egypto mediA et inferiore (Ehrenb., 

 Siebl Boiss! etc). 



Obs. R. Marschallianus Rchb. species affinis sed verticillis remotis aliisque 

 notis diversa ih Tauria •OTronee indicata ixx ditione non crjjscit. 



21. R. bucephalophorus (L, Sp. I, p. 479) annuus hernia- 

 phroditus puUiilus a collo simplex vel SEepins pluricaulis, caulibus 

 tenuibus erectis et ascenderjtibus in racemos Jongos tenues simplices 

 abeuntibus, foliis pelioJatisinferioribus ovato-spathulatis vel oblongo- 

 lanceolatis summis linearibus, verticillastris remoliusculis 2-3-floris, 

 pedicellis basi articulatis demum clavato-incrassatis complanatis et 

 subtus sulcatis induratisarcuato-reflexis. perigonio longioribus, valvis 

 subecallosis abasi deltoidea obloogo-lanceolatjs apice iulegris inferne 

 utrinque 2-4 dentatis dentibus patentibus subulatis spinosis vel recLi& 

 valva brevioribus vel longioribus uneinatis 0. Ic^ iCav. tab- 41i — 

 FI. Groec. tab. 345. 



Hab. in arenosis berbidis prsesertim niaritimtb tbtiit^ Orsecite " (Sibth., 

 Sprun! Heldrl), Tliracise ad Byzatttium (A\ich! I«?oel), Anatolise occidentalis 



