1900.] DavieS. — Some Mosses from North-East Ireland. 173 



Fissldens virldulus, Wahl.— On moist sandy banks, by the side of 

 the road over Tullyard, and at Lisnatrunk, Co. Down, also in similar 

 situations at Ballymacash and Derriaghy, Co. Antrim, and in other 

 places near Lisburn. Dr. Moore knew of only one Irish locality 

 (Howth), and it cannot be found that there is any later record. 

 From the frequency of its occurrence about Lisburn it may be 

 assumed that it will be met with elsewhere. A smaller plant, with a 

 shorter fruit stalk than F. bryoides. As Mr. Dixon points out to me, 

 the male inflorescence is very small at the base of the stem, whereas 

 in F. bryoides it is pretty conspicuous in the axils of the upper leaves. 



Fissidens Incurvus, Starke.— Cla}- banks by the wayside at the 

 southern slope of White mountain, and in a like situation by the 

 sea-side at Kilroot, Co. Antrim. There is no mention of this in the 

 "Synopsis," and it was unknown to Mr. Stewart when making his 

 catalogue of mosses for " Flora of the North-east of Ireland.'' The 

 moss, I make out, was first recognized in Ireland by Canon Lett, who 

 has sent me specimens which he gathered at Derryadd, Co. Armagh, 

 in 1S85. Mention of his discovery, he informs me, was made in a 

 paper soon afterwards read by him before the Belfast Naturalists' 

 Field Club, but not published in their Proceedings. The same 

 bryologist also met with it later in Co. Louth (^Proc. R.I. A., 1890). 

 We have thus four Irish stations for the moss, two of which are in 

 the Norih-east. In its typical fruiting state it is easily separated 

 from the allied species. The seta is longer than in the preceding 

 plant, and the capsule ceruuous, not erect as in that. In his most 

 serviceable "Handbook," Mr. Dixon says: "When in fruit, and 

 closely tufted, the plant bears a superficial resemblance to Dicranella 

 varia,'' a remark which, if taken as having reference mainly to the 

 fruit, is very good. The plant occurring at Kilroot is a very small ' 

 and most interesting form, one which Mr. Dixon, to whom I sent 

 speciiriens, says he had not before seen, but both leaves and fruit 

 having all the characters oi F. incujvus, it must, he states, be referred 

 to that vSpecies. 



Pott la Heimii, Flirnr. — Abundant along the sea-coast from Kilroot to 

 Whitehead, Co. Antrim. A maritime species, which Moore gives as 

 rare in the North, I suspect it is not uncommon. It would seem 

 that he missed seeing it in Co. Derry, but Mr. Lett has collected it 

 at Portstewart in that county, and Mr. Dixon records it from the 

 Giant's Causeway.'' 



Tortula marginata, Spr.— On the face of red sandstone rocks near 

 Derriaghy — Milltown, on the left-hand side of the road from Lisburn 

 to that village, May, 1900. An addition to the Irish moss-flora. In 

 the locality named it occurs in profusion, growing not in tufts or 

 cushions, but in wide-spreading patches. The thickened leaf-margin 

 is best seen under the microscope, but the form of leaf with nerve 

 excurrent in a greenish mucro is distinctive, and by the delicately 



^ fourn, Bot. xxix., p. 362. 



