— 12 — 



* * Vaginae dentatae. 

 E. limosum L.; dentibus vaginarura persistentibus 

 discoloribus. — 5 — 6. ^n fd)(ammtgem 55oben an Ufern »on 

 ftet)cnben ©eivdffern bei ^oppel^borf, Ui ©iegburg unb am 

 Saacf)er ©ee. 



Caulis simplex v. subramosus^ fistulosus, niultisulcatus, glaber, 

 apice l-stach3'us. Vaginarum dentes subulati, discolores, nigricantes, 

 absque margine membranaceo. 



E. palustrc L. ; dentibus vaginarum persistentibus 

 membranaceo-marginatis. — 24-. 5 — 6. 9{uf SBiefen unb in 

 feud^ten ®rd5en. 



Caulis e basi ramosus v. rarius simplex b*-sulcatus, glaber, ramis 

 quadrangulis 1-stachyis. Yaginarum caulinarum dentes discolores, 

 fuscescentes, margine hyalini, ramorum concolores. 



E. hyemale L. ; dentibus vaginarum caducis hyalinis. 

 — 24.. 9—12. 3n feuc^ten Salbfc^luc^ten, am 9?anbe »on 

 S3dcf)en, jttjifd^en bem Streuj' unb SSenu^berg am $oppel6borfer 

 S5ac^ unb 6ei Seng^borf unb Sinj. 



Caulis simplicissimus, scaber, durus, monostachyus. Vaginae 

 discolores, primum totae atrae, deiu margine crenulato basique ater- 

 rimae medio albescentes. 



