OCTANDRIA. TrIGYNIA. 373 



In ot. radixfibrosa, in /3. repens. Caulis crassus, 

 geniculatus , radicans. Stipulaj tubulosae. Folia in 

 u. firma, natantia, Slabtus aspera, glauca, in/j. mi. 

 nus crassa, longiora. Spica solitaria, rubella , in 

 «. magis ovata, in |S. cylindrica. In x. stamina pe- 

 ngonio breviora , in /3. longiora. 



In palustribus circa Hiltelingen. Prape Sdc/iinsen. Iii pis- 

 cinis prope Crenzacb^ Mutenz^ ^ltschvoyler , Brezvoyl etc. ^, in 

 agris et vineis, ubi post inundationcs aquse diu stagnaveraat; 

 rarius. Juiio-Seyt. 2^; 



3) Tjapathffolium ; florlbus liexandris digynls^ 

 spicis brevibus obtusis demum nutantibus, sti- 

 pulis muticis, pedunculis glanduloso-scabris, fio, 

 ribus 5-andris digynis, seminibus utrinque de- 

 pressis... P. pensylvanicum Curtis. Hydropiper 

 Lob. ic. I. p. ^\S. f. 1. 



(^, Jiodosum', caule rubro maculato , fioribus 

 rubellis. P. nodosum Persoon. P. lapathifol. /?. 

 Gmel. P. pensylvanici var. Curtis. 



Folia subtus s^epe cinereo- pubescentia, in^ra. 

 tum odorem spargentia. Cauiis 2—4', crassus, 

 geniculis valde incrassatis , (prKJsertim in ,5.) 

 petiolis pedunculis et foliorum nervis scabris. 

 Flores in ce. ex virescenti-albi. Stipulis arctis, 

 muticis ( non ciliatis) a sequenti potissimum 

 diff^ert. 



32 



