320 UETICACE^. 



PAEIETAEIA Liim. 



1. P. officinalis Linn. — Wall Pellitory. 



P. diffusa Koch. 



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



Lat. 61^°-55i°. Throughout Ireland. Type, British-English. 



Lo-wland. Old walls, also on rocks; frequent. M. June- 

 September. 



Often abundant near the sea ; usually rare ia inland stations. 



OEDEE LVIII.— MYRICACE^. 



MYEICA Linn. 



1. HI. Gale Linn. — Bog Myrtle. 



Sibernici Rile65 {Rill-yoge). 



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



Lat. 51i°-55i°. Throughout Ireland. Type, British. 



Bogs and moory grounds ; frequent and locally abimdant. Fl. 

 May. 



Sea-level in N. Donegal and S. Cork. To 1000 ft. in Donegal 

 {Sairt) ; to 1400 ft. in Down (,Sf. ^ P.). 



OEDEE LIX.— CTJPULIFEEiE. 



BETULA Linn, 



1. B. alba Linn. (Aggregate). — Bvtch. 



Hihernici beic {Bay), 



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



Lat. 51J°-55J°. Throughout Ireland. Type, British. 



Heaths, woods, and mountain glens; frequent. Fl. April- 

 May. 



Sea-level in Antrim and Cork. To 1400 ft. in Down (iS. SfP.); 

 to 1700 ft. in "Wicklow {N. C); to 1500 ft. in Mayo {ffa/rt). 



