90. EQUISETACEA. 605 
90. EQquisETACEs. 
Equisetum (limosum) fluviatile, Linn. (not of Smith). 
Provinces all? But not all actually certified. 
Syn. 1425. Cyb. iii. 307. The name fluviatile has been used in 
various books for the species subsequently known as Telmateia, 
and quite recently among us renamed maximum. It has also 
been used for the branched state of EH. limosum, as here intended. 
It has likewise been supposed to stand for some third species, 
distinct from both of those here mentioned; but that third 
species seems to be only a book supposition. 
Equisetum trachyodon, A. Braun. E. Mackaii, Newm. 
Province - 15. Den of Airly. Dee river, Aberdeenshire. 
Ambiguity. Phytol. i. 174 & 876. No specimens of this plant 
having come under my own inspection, it was left out of the 
Synopsis, in accordance with the rule stated on page 64. If I 
could have felt satisfied about the reality of the species, from 
reading the book descriptions of it, adherence to the strict rule 
might have been waived in the case of an Hquisetum adopted as a 
species equally by Newman and Babington. 
Eiquisetum (variegatum) Wilsoni, Newm. 
Province - 15. By the Dee, Aberdeen or Kincardine. 
Syn. 1428. “Probably a large form” of E. variegatum; Bab. 
Man. The E. arenarium is an opposite form, small and prostrate 
or procumbent. 
