98 



Polygoneae Juss. 



Oxygonum Birrch. 

 i. O. alattiEu. (Burch. trav. I. p. 548.) 



Grasreiche, sandige Stellen am Sandrivier, März. Zey- 

 her No. 1451. 



«. i?itcgrifolium , foliis oblongis lanceolatisve aeutis 

 vel ncuminatis intcgerrimis Tel hinc inde deute auctis. 

 O. Drcgeanum Meisn. 



ß. inchum , foliis ovatis vel oblongis ineiso - dentatis 

 pinnatifidisve. 



Herba aunua 1 — 3-pedalis. Radix perpendicularis, 3 

 — 4 -pollicaris , apice pennam columb. crassa, subsimplex. 

 Caules plures adsccudenti-erecti , angnlati , sulcato - striati, 

 glabri vel subglaudulosi, ramis alteruis teretinsculis subangu- 

 latisve. Ochreae membranaceae, in spec. majoribus snblier- 

 baceae, viresceutes, glabrae vel subglandulosae, cylindrico- 

 snbcarapanulatae ,4 — 6 lin. longae , ore truncato pluridenta- 

 tae, dentibus setaceis basi latioribns apice acumine eapillaceo 

 terminatis. Folia basi in petiolnm angustata, in u. lanceo- 

 lata, oblongo-lanceolata vel lineari-lanccolata, acuta vel acn- 

 minata, glabra, uninervia, a venia,, intcgerriiua vel subden- 

 tata, i — l'/ 2 poll. longa, 2 — 4 lin. lata, in ß. 2 — 2'/ 2 - 

 pollicaria, 8 — 10 lin. lata, eircuniferentia ovata vel oblonga, 

 acuminata, magis minusve inciso-dentata dentibus lanceo- 

 latis, vel pinnatifida, laeiniis iuferioribus longioribus bifidis, 

 reliqnis subdentatis. Racemi elongati , erecti, saepius sub- 

 arcuali, intcrnodiis inferioribus 1 — 1 '/«j-polliearibus, supc- 

 rioribus approximatis. Braeteae ochreaeforines , membrana- 

 ceae, truncatae, deute subnlato recurvo. Pednnculi 4 — 8, 

 glandnlosi, apice articulati, 3 — 5 lin. longi, deflorati recnrvi. 

 Flores hermaphroditi! Perigoniuin infiindibuliformc, tnbo 



