6o The Irish Naturalist. 



NOTES. 



BOTANY. 



FUNGI. 



Fungi from CenTrai, IreI/AND. On a recent excursion (April 23) 

 to Knockdrin Castle, Co. Westmeatli, the grounds of which were entered 

 by kind permission of H. C. Levinge, Esq., I found the following species, 

 as well as many others not yet named : — CEddhcm primula, D.C. ; Peri- 

 dertniictn pini, Chev., now known to be a stage of Coleospormm senecionis, 

 Pers. — the spermogonia were not seen; Puccinia graveolens, Pers., uredo 

 stage on Carduus arvcnsis; P. pimpindlcc, Strauss, uredospores on P. saxi- 

 fraga; Trichia seroiina, Schrad ; T. chrysospenna, D.C, with Stilbiim tomcn- 

 tosum, parasitic on the fructifications; two species of Nedria; Peziza nivea, 

 Fr. ; several species of Diatrype and Sphccria; and Dactylmm rosmm, Berk, 

 the spores of which differ from those of Berkeley's plant in being tri- 

 septate ; it causes a wide-spread bright pink discolouration of the wood. 

 No agaric was found. 



A sample of water from a ditch near the canal, besides containing 

 numerous specimens of Daphnia, Cydops, and red water-mites, contained 

 six species of Schizomycetes, which were isolated by Koch's method. 

 One of them proved to be Bacillus fluorcscens-liqucfadens. The others re- 

 quire further study before it can be ascertained if they have been pre- 

 viously described. — B. J. M'Weeney, Dublin. 



LIVER WORTS . 



Diplophyllum obtusifolhim (Hook), in Co. Dubinin. In the spring 

 of 1890, when collecting cryptogams wnth the Dublin Naturalists' Field 

 Club, on one of their excursions, I found a small patch of this rare liver- 

 wort growing on a moist clay bank in Glendhu, Co. Dublin. The only 

 localities known for it in Ireland were near Bantry, Co. Cork, Miss 

 Hutchins (1812) ; Dunscombe's Wood, in the same county, W. Wilson, 

 Esq. (1829), and near Dunkerron, Dr. Taylor. 



Dr. D. Moore, in describing the plant in his work on the Irish Hepa- 

 ticse, Proc. R. I. A, (2) ii. Science, writes : — "Very rare in Ireland. The 

 localities quoted are the only places where it has hitherto been observed." 

 It is interesting to note that it should now appear in the eastern part of 

 Ireland, after such a long interval. I am not aware that it has been found 

 by any other person since the dates above quoted. Another species, D. 

 albicans, small forms of which might possibly be mistaken for it, is one of 

 the commonest of all the liverworts, but it is also a most interesting 

 plant. D. obtiisifolitim differs from it in its smaller size, and above all, in 

 wanting the pellucid central nerve-like markings in the leaves, which 

 character is not possessed by any other foliose liverwort. It is figured 

 in Sir W. J. Hooker's " British Jungermannia," table 26; also in " English 

 Botany," table 251, under the name oi Jungermannia obtusifolia. Mr. M. B. 

 Slater, an excellent authority on the subject, to whom I sent specimens, 

 says the plant is rare in England.— David McArdle, Glasnevin. 



ZOOLOGY. 

 MOLL use A. 

 Marine Shei,i<s. In the Zoologist for May, Mr. H. C. Hart brings to a 

 conclusion his "Notes on Marine MoUusca collected on the coasts of 

 Donegal and Dublin," which have been running through several num- 

 bers. The title is a somewhat misleading one, "Donegal and Dublin" 

 including the counties of Londonderry, Down, Louth, Wexford, Water- 

 ford, and Galway, and had the writer omitted iibiquitous species, and 

 paid a little attention to the already published records of Thompson and 



