21t > i'UE JOURXAL OK BOTAKT 



in Irish mountain form), acute or obtuse, obscurely toothed with 

 thickened _ margins usually pilose externally, equally or exceeding the 

 heads, winch are 20-30 mm. broad and Hatter than in other forms 

 Flowering pedicels shorter than in the type. Calyx-tube glabrous 

 or minutely pilose as in some other forms of the species; teeth 

 glabrous or very rarely with a few short, pilose hairs, subulate, 

 distinctly one-nerved, broader and shorter than in the tvpe Corolk 

 sometimes paler m colour than in other forms. 



This apparently endemic variety is found on rocky coasts of the 

 western s,de of Great Britain from Cornwall to Shetland, and is 

 widely distributed in Ireland. 



I have seen specimens from Cornwall (St. Ives! Newquay, Hb 

 Mus. Brit, as var. httoralis), North Devon (Ilfraeombe ! Ltmdy 

 Isd., Hb. Mus. Manchester), W. Somerset (Hurlstone Pt E S 

 Marshall as var. major), Anglesea (Holyhead, C. E. Salmon, as var' 

 mantima), Orkney (Eday, Johnston) and Shetland (Unst Beebv -is 

 var. major); and in Ireland from Dublin (Howth. Blackwood 

 as M-ar .major), Y\ icklow (Bray Head, Britten & Nicholson) Kerry 

 &"' ES Marshall, No. 3661, as va, ^), cZ 

 (Kilkee Hb.L. F. Linton, as var.- -), Galway (Clonbar, E. S 

 Marshall, as var. major- Renoyle, Miss Blake, as var. maritvma), 

 and Mayo ( Killary Bay). J 



THE LICHEN LIFE-CYCLE. 

 By A. H. Church. 



(Concluded from p. 202.) 



VI. Concluding Remarks. 

 In thus considering the hearings of these associated groups of 

 Laboulbeniacea, and Floruk,e. one is inevitably drawn to' the 

 conclusion that the Lichen Fungi represent a distinct horizon of 

 vegetation quite apart from their secondary connection wtth 

 intrusive atae; though the delimitation of the group from cases 

 of comparable parasitic attack by other fungus-races on algal forms 

 may still remain very vague. The fiction of the < Consortium ' lea 

 nowhere; the real story is much more marvellous than any lichen 

 ologist has so far outlined. The striking individuality of the racels 

 vindicated far beyond the dreams of an older school (CrombieTwho 

 were grieved at the indignity suggested by the symbiotic theory of 

 Schwendeneri. There can be no doubt that in their varied tvpe o 

 hTthTv sTill retai " , the f ° rm - factors <> f ^rine alga,, to the Lten 

 of bSil dFchl '•" "7 C T eS ^ aCCUra ^ the appearance 

 ot bilateral dichotomizing frond-systems, and the fruticose and 

 cue ushng vegetation of modern tide-pools (Ohondrus, Qiaartina, 

 mohesza Balfua).. In their asexual sporangial phase they 

 .ugges the retention of a tvpe of unilocular sporangium behind the 

 state of existing D.tctyota, or the horizon of the Floride*. On the 



1 Be Eary (Eng. Trans., 18S7) p. 418. 



