454 FILICES. [Ophiofflossum. 



A peculiar dwarf form, for wliich tte name Kmrtii has been pro- 

 posed by tbe late A. Gr. More, bas been found by Mr. H. C. Hart 

 at — I. DeeHck Point, Brandon Head; and on tbe Three Sisters 

 Head, Dingle promontory, Kerry : Bart 1884 ; and — XI. On Car- 

 rigan Head, Slieve League; and on Horn Head, Donegal: Sort 

 i8'/gSf-8sy. This plant, -which at first was taken to be var. polt- 

 PHXLITJM, flowers about the same time as the type, and may prove 

 to be merely a form dwarfed by growth in exposed situation. 



BOTEYCHIUM Swartz. 

 1. B. Ltinaria Swartz — Moon-wort. 



Districts I. II. III. IV. V. VI. VII. VIII. IX. X. XI, XII. 



lat. 51^°-55i°. Throughout Ireland. Type, British-Scottish. 



Grassy places ; not infrequent. Frt. May-July. 



Sea-level in Antrim and S. Cork. To 1750 ft. in Derry {Swrt) ; 

 1479 ft. in Dublin {N. C.) ; to 1500 ft. in Sligo (iJ. W. S.). 



"Widespread in Ireland, but much less abundant than the 

 preceding species! 



OKDER LXXIX.— EaXJISETACE.ffi. 



EaUISETIJM Linn. 

 1. E. maximum Lamk. — Great Horse-tail. 

 E. Telmatem'Ekrh. 



Districts I. II. III. IV. V. VI. VII. VIII. IX. X. XI. XH. 

 Lat. 51f°-55i°. Throughout Ireland. Ti/pe, English-British. 

 "Wet banks, &c. ; locally abundant. Frt. April. 

 Sea-level in Donegal and Ken-y. To 850 ft. in Dublin (iV C). 



2. E. arvense l,ixm.— Field Sbrse-tail. 

 Districts I. II. III. IV. V. VI. VII. VIII. IX. X. XI. XII. 

 Lat. 51J°-55i°. Thi-oughout Ireland. Type, British. 



"Way sides, ditches, waste ground, &c. ; common. I^t. April. 



Sea-level in N. Derry and 8. Cork. To 1000 ft. in Derry 

 (Mart); to 1100 ft. in DubUn {If. C). 



