DUBLIN NATUBAL HISTOBT SOCIETY. 63 



Laciniatum (?), frond irregularly lobed, venatioQ very much confused, barren~> 

 Doanybrook, county of Dublin, December, 1853; Am. Ruta Muraria, var. Laci' 

 niatum (?), fronds symmetrical, contracted, fruitful — King William's Glen, 

 county of Louth, April, 1854 ; Am. Ruta Muraria, sub-var. Truncatum, fronds 

 irregularly contracted, leaflet reduced to a mere midrib — Marlay, county of 

 Dublin, 1853.] 



LIST OF SPECIES OF BRITISH FERNS. 



Varieties, Dissectum and Laciniatum ; and Sub-varieties, Sinuatum and Trun- 

 catum. 

 [Explanation of Marks — Not recorded as Irish, thus [Woodsia]. "Margi- 

 nate" the Epidermis on surface of frond raised in a hem, and scalloped along 

 edge.] 



Eupteris aquilina (Newm.); sub-var. sinuatum (Mei). England, Epping Forest 

 (Kin. 1854), in combination with multifidum (Mei). 



Var. laciniatum (Mei\ 



England : G. B. Wollaston, Esq. 



Sub-var. Truncatum (IVIei). G. B. "Wollaston, Esq. 



Syn. depauperata* ( Wol.), often combined with multifidum. 

 Lomaria spicant (Des.); var. dissectum TMei). Barren. 

 • Ireland— Glenmacnass, county of Wicklow(Phvt. 1853, pp. 892 and 1037). 



England — Ambleside (Francis' Synopsis) ; Tunbridge Wells, G. B. Wollaston, 

 Esq. 



Syn. strictum (Francis) heterophyllum. (Wol.). 



Sub-var. sinuatum (Mei). Ireland — Clare, Dublin (Phyt. ut supra). 



England : G. B. Wollaston, Esq. ; often combined with multifidum. 



Var. [Laciniatum (Mei)]. England, G. B, Wollaston, Esq. 



Syn. lancifoliumf (Wol.), marginatum^ (Wol.). 



Sub-var. Truncatum (Mei). Ireland— Clare and Dublin. 



England : G. B. Wollaston, Esq. 

 Notolepeum ceterach (Newm.). 



Sub-var. sinuatum (Mei). Ireland — Gal way, Waterford. 

 Phyllitis scolopendrium (Newm.). 



Var. dissectum (Mei) ; Undulatum (?); barren. Ireland — Belfast. A.Craw- 

 ford, Esq., England. 



Sub-var. sinuatum§ (Mei). Phyt. ut antea. Dublin. 



Var. laciniatum (Mei). Ireland — Tinnehinch, county of Wicklow (1). Phyt., 

 1854, 1087. Nat. Hist. Review, p. 83. Galway (7), Dr. Allchin. Donny- 

 brook, Dublin (9) TKin). Louth (10) (Kin.). 



England — Somersetshire, Sir W. E. Trevelyan (1). Kent, G. B. Wollaston, 

 Esq. (1 and 5). Dorsetshire, G. B. Wollaston, Esq. (8). Yorkshire, (ib.) 

 *(3), Ray, &c. Guernsey (4), Dr. Allchin. 



Synonymes marginatum (1), (Moore 174), supralineum (2), (ib. 179) [bi- 

 marginatum (3), [multiforme (4)], mucronatum (6), truncatum (7)], [sub- 

 variegatum (8)]. Polyschides (Ray) — vide Newm. Brit. Ferns, &c., cornu- 

 tum (6)JI 



Sub-var. Truncatum (Mei); not uncommon; Dublin. 



• Depanperata, plniwo reduced to contracted rounded segments. 



t Barren fronds contracted, often lanceolate, simply serrate Fertile fronds, sometime redacedto 

 near spike. 



1 Marginatum (Wol), fW)nd raarginato and serrated. 



8 Margins of fnmds spit Into squared segments. 



I (8) Blmnrglnatum (VVoU, frond niarj^nate on both surfaces; edges irregularly crenato-scrrate 

 Torkshire. (4) Multiforme (WoL), frond marglnatc on both surfaces nmch serrated ; upj>er surface ol 

 firond scaly ; aiKJX cristate; Guernsey. (6) Mucronatum, outline of frond, untlulatetl ; crenattd ; the 

 midrib projecting and forming a fibrous hook ; Yorkshire. (7) Truncatiun (Wol.). ai)ex of frond un- 

 dulate and truncate; edges unserrated, ending in fibrous hook ; Galway, Dr. Allchin. (8) Sub-varie- 

 gatum, frond variegated ; Q. B. Wollaston, Esq., Dorset ; margins crenato-scrrate ; apex aometimefl 

 cristate (11 as 7) edges serrated. Dr. Allchin. Ireland. (9 and 10) rtde end of pM>er. 



