EQUISETACEJ?. 165 



extending to near Seamark House, County Wicklow." (A. Gr. More.) 

 First found by the late Dr. D. Moore, 1861, on wet rocky banks 

 facing the sea, and on open ground facing Rochneld, not far from 

 Dunganstown, Wicklow, Mr. A. Gr. More says, the plant of Dundrum 

 Sandhills " should probably be referred to E. Moorei." This 

 would extend the range of the plant to County Down. 



Ireland. Perennial. Autumn. 



Stems 1 to 2 feet high, from the thickness of a stocking-wire to that 

 of a crow-quill ; sheaths about £ inch long exclusive of the teeth. 

 Spike j— | of an inch long. 



E. Moorei differs from E. eu-hyemale in its much smaller size, more 

 deeply furrowed stem of which the sheaths are slightly widened 

 upwards and have the teeth persistent ; the points of the teeth are 

 firmer in texture, and many of them remain attached to the sheaths 

 until winter, and even in spring may be found on stems which have 

 not been killed by frost. 



One of the characters which was considered distinctive of E. Moorei, 

 in the original notice of it, is apparently not constant. Dr. D. Moore 

 writes in December, 1853, " The stems of all our British unbranched 

 species of Equisetum are persistent, remaining green throughout the 

 winter. The economy of the plant to which 1 am now directing 

 your attention is the reverse of this : the stems die down annually " 

 (Phytol. 1854, p. 18). I have cultivated this for more than four years 

 from roots sent me by Dr. Moore, and I find that they are scarcely 

 more tender than those of E. eu-hyemale grown along with it ; neither 

 form is completely evergreen, being more or less killed downwards 

 from the top according to the severity of the frost. 



Mr. A. Gr. More, writing from Glasnevin in May 1869, says that 

 " none of E. Moorei are quite dead, nearly all are green § up," and in 

 the ' Journal of Botany ' for 1868, p. 253, he writes, " In the wild state 

 the stems are not strictly deciduous, for in sheltered situations among 

 bushes I have found them quite green and fresh even so late as in 

 the month of March ; and if on the open sandhills they are more or 

 less withered, I believe that this may be due simply to exposure:" 

 Mr. J. Gr. Baker in a letter says, concerning the stems of E. Moorei, 

 " They are just the same in texture as in E. hyemale, but perhaps — 

 I am not even certain as to that — cut up by frost rather earlier." 



In cultivation at Balmuto it has remained unchanged ; and is in 

 habit and general appearance much more like E. trachyodon than 

 E. eu-hyemale. 



According to Milde, E. paleaceum (Schleicher) which is the oldest 

 name, is to be rejected, as by it plants quite different from each other 

 are intended by different authors and even by Schleicher himself. 

 That being the case, Mr. Newman's name Moorei is antecedent to the 



