\ I JSquisetum.'] cxin. equisetace^. 599 



'%. .^y. poTystacTiyon ; brandies terminating in catkins, Willd. : 



BaiiSyn.^. 131. t, 5. f. 3. 



''Ns, I Boggy soils, frequent. Stems annual. — )8. Boggy places near 



^'^ of 1 springs, on the higher parts of the Braedalbane mountains. — 7. Cam- 



■^^lies I berwell. Fr, June, July. 



^'^% I 7, E. Mackayi IsTewm. Qong-stemmed H.) ; stems perennial 



very long branched at the base, branches elongated flexuose 



's the 1 simple or again irregularly branched towards the apex scabrous 



furrowed^ sheaths at length wholly black with 6—13 narrow 

 subulate teeth, catkins terminal mucronate. Newm. Bint. 

 Ferns, p. 15. cum Ic. E. elongatum Hook. Br. FL ed. 5. 

 ,., , and Willd? 



J j Mountain glens, near Belfast : F, Whitla, Esq. and Br, Mackay ; 



since found elsewhere in the north of Ireland. Bed of the river 



Dee, Scotland. Fr. July. — The stems are perennial, nearly equally 



rough with the following, but the ramification is very different, as 



Iprll, are the teeth of the sheaths. In the absence of any decided authority 



any for this being the true elongatum of Willd, we are very willing to 



their adopt Mr. Newman's name after our valued friend, and one of its dis- 



ifica- 1 coverers in Ireland, Dr. Mackay. If, however, a really distinct 



species, it is very unlikely that it should not be found on the Conti- 



eous 



ooth 



)lDt, 

 ... J 



nent, and already described there ; and we are disposed to think it 

 . . may prove the E, ramosum of Schleich. described by Koch, to which 



|c^'^ [ are also referred, by the latter author (Fl. Germ. ed. 2. v. 2. 



^^^'^) I p. 966.), E. elongatum W., E. Pannonicum W., E, ramosissimum 



Ulte I Desf , E. procerum Pollin., and E, hyemale van C. elongatum Doll. 



louf ] Mr. Babington quotes under E. Mackayi^ E, trachyodon (Braun) 



mo- j Koch?, because, we presume, Koch quotes Mr. Babington E. 



j^^{ I Mackayi with a doubt, under E, trachyodon. We cannot solve these 



doubts. * 



4 



8. E. Jiyemdle Ij, (rough H.); stems perennial, throwing up 

 simple branches only from the base scabrous furrowed, sheaths 

 black at the bottom and top othei'wise whitish with about 14 

 slender often deciduous teeth (black at the extremity), catkin 

 terminal mucronate. -E. B. t, 915. 



the ^^ggy woods, principally in the middle and north of England; In 



ilr. Scotland and Ireland. Fr, July, Aug. Stems perermial. — Most of 



of the Horse-tails are more or less rough to the touch, and their cuticle 



off abounds iti silex or flinty earth, so that they are admirably suited for 



the polisbintr of hard woods, ivory, brass, &c. This species, E. hyemale^ 



. is by far the best kind for such purposes, and is imported largely from 



'lit; 

 lese 



ite 



Holland under the name of Butch Bushes, 



9. E. variegdtum Schleich. (variegated rough H,) ; stems 



V' ^ ^^- Newman has, in Phytol. 5. p. 19., proposed to make a new species for 



-gj i 3 plant found in Wicklow, under the name of E* Mooret\ It is allied to 



E. Mackayi and E. hyemale^ but has stems annual erect simple furrowed, 

 sheaths loose, white but black at the base, with about 12 rigid teeth, which are 

 black and truncate at the extremity ^ catkin terminal sessile, conical at the point. 

 We have seen no specimen. 



10 



