90 



CXXXTV. POLYGONACE^. 



THbus It. ^ Koehlfflese. Herb^ humiles v. tener^, foliis iufra inflorescentiam alternis 

 Y oppositis basi leviter dilatatis amplexicaulibus y. in vaginam bre^-issjmam connatis, ocreis v 

 obscuns. Inflorescentia dichotoma v. subumbellata, foliis floralibus sxib ramis liberis v. subconnatis. 

 riores ad dichotomias eapitati v. dense fasciculati, singuli bractea stipati. Perianthii lobi 

 6 V. pauciores, stamnubus totidem v. paucioribns. Genera Americana v. borealia. 



5. HoLLiSTEitiA. Bractea? ovat^, utrinque dense lanati:e. Perianthium lanatum, 5-6-fiduni. 

 Stamina 5-6. — California. 



6. NE^tACArLis. Bractese ovatse, extus nudse,- intus dense lanat^. Perianthium glabrum 

 6-fidiim. Stamina 2-d.~ California. ^ 



7._Lastabri^. Perianthii dentes 6, uti folia floralia et bractea angxisti, rigidi, rceurvo- 

 cuspidati. Stamina Z.— Chili, California. 



8, Pteeostegta. Bra^tese post anthesin valdo anet,-^, lat^, membranaceo-scariosiB, venose, dorso 

 saepo 2-alatiEr. 2-cristatie. Herba tenera, foliis oppositis orbiculatis y, late 2-lobis. Peri- 

 anthii lobi et stamina 6, rarius 5.-— California. 



9. KffixiGiA. Bractege hyalinse, pedicello breviores. Herb^e nanse. tenera^, foliis alternis 

 oppositisye pary.s. Perianthii lobi et stamina sa^pius 3 rarius 2 v. i.^Seo. arct. et suharct. 

 Amcncceet orhis veteris, mont. Asics. 



Tribus III. Eupolygonese, Herb^ suffruticesye, caule rarius yolubili, y. frutices ramosis- 

 simi, foliis alternis, ocreis membranaceo-scariosis. Plores ad axillas y. ad nodos inflorescentite fasci- 

 cuiati, fasciculis, rarius floribus singulis, bractea yaginante y. eoncaya stipatis. Perianthium 5-merum 

 ranus 4-merum. Stamina 6-8 y. subinde pauciora (excepto CalHyono). Styli s^pius filiformes- 

 stigmata capitata (excepta Polygoni sectione Pleuro^tero). Albumen integrum, aquabile. 



10- CALLiGomiH. Stamina 12-18. Pfstillum 4-merum. Nux in ordine majuscula, exserta 

 yane angulata alata y. muricata. Frutices ramosissimi, foliis angustis y. parvis.-^s/« occid ct 

 med., Afric. hor. 



11. PTEROPTia-.i. Stamina 8. Pistillum 3-merum. Nux exserta. 3-alata, alis supra 

 medium mterruptis. Frutices rigide ramosi, foliis parvis linearibus y. spathulatis - Oriens 



12. Ateaphaxis. Stamina ssepius G-8. Pistillum 2-3-merum. Nux perianthio aucto 

 Bcarioso mclusa. Frutices ramosissimi, ssepe spinescentes, foliis angustis v. parvulis.— ^s^a 

 med. et occid. Afr. hor, 



13. OxTGONusr. Stamina 8. Pistillum 3-merum. Nux perianthii tubo 3-gono 3-nlato 

 y. Sjcalcarato arete incluea, hmbo marcescente coronata. Herba, foliis integris sinuato-dentatis 

 T. pinnatifidis. — Afr, or. trop. et ausir. 



U. PoLYGOi^ELLA. Stamina 8. Pistillum 3-merum. Perianthii fructiferi segmcnta 2 

 extenora parva reflexa, 3 interiora erecta nucem inchidentia. Hcrbc-e teuucs, erects, foliis 

 anguste linearibus, racemis spiciformibus gracilibns paniculatis.— ^//ier. hor. 



15. PoLyGONUM. Stamina 8 y. subinde pauciora. Pistillum 3-mcmm.' Perianthium friic- 

 tiferum parum auctum, nucem ineludens, mcmbranaccum y. interdum baccatum segmentis 

 sequahbus y. 3 extenoribus majoribus interdum carinatis y. alatis. Herbs rarius suffrutices 

 habitu ^\ymox-^'hQ.— Orhis fere totus. ' 



16. FAGorvKUit. Omnia Poii/goni nuce excepta perianthio longiore et cotyledonibus latissimis 

 contortis plicatis radiculam inyolyentibus. Herbse cymis laxe corymbosis y. in capitulum 

 contractis. — Asia ? ibidem et in Fkir. cult, et in^uilijium. 



(Vide etiam 21, MmhlenhecJciam, cujus species noniiullie Polygono accedunt.) 



Tribus IV. Rumiceae, Herbae, rarius suffrutices y. frutices ramosi, foliis alternis y. radi- 

 calibus, ocreis membranaceo-scariosis. Flores ad axillas v. ad nodos inflorescentia fasciculati, fas- 

 ciculis bractea yaginante v. concava stipatis. Periantiiium 6-meruni y. rarius 4-merum. Stamina 9 

 y. 6, rarissime subinde pauciora. Styli breyes, recuryo-patentes, in stigmata late hippocrepica peltata 

 V. fimbriata dilatati. Albumen integrum, sequabile. 



17. Ehbttk. Stamina 9 rarius 6. Perianthium 6-mcrum, fructiferum iramutatum marcescens 

 Nux exserta, 3-alata. Herbse robustse,— ^5?f7 med, et or. 



^ 18. OxYEiA. Stjimina 6. Perianthium 4-merum, fructiferi segmonta exteriora refiexa, 

 interiora nuci 2-alat3e appresea. Herbse humiles v. tcnues, foliis radi call bus.— i?^^. arct. et 

 mont. elatiorcs Eur, Asia ct Amer, hor. 



