1901. PRAKGHR. — Botanical Field-work in 1900. 39 



hedge far from a cottage, inspired a hope that I might be on 

 the outskirts of a native colony of this rare plant ; but the 

 appearance under similar circumstances of Iris fcstidissima 

 dispelled the illusion. The best ground found was about 

 some eskers south-west of Cloughjordan. Gal htm Mo Hugo 

 was there, and Erysimum cheiranthoidcs appeared in some 

 abundance as a colonist in cultivated land ; on the railway 

 Armaria tenuifolia grew with Lhiaria viscida. A triplex erecta 

 and Galium Mollugo, growing at Cloughjordan, were new to 

 District VII. Next morning I visited a further portion of 

 the eskers. From the train a few years ago I had fancied I saw 

 Gcranhwi sanguineum here, and now found it growing in 

 immense abundance over a considerable area — an interesting 

 habitat, as the plant is almost confined to the coasts, the lime- 

 stone "crags" of the west, and the limestone shores of the 

 great lakes. With it were Erigeron acre and other similar 

 plants. A bog beyond the eskers yielded Potamogeton alpinus 

 and Chara polyaca?itha. Thence I made a long march south- 

 ward to the Old Red Sandstone hills near the source of the 

 Nenagh River, but got hardly any calcifuge species ; so I 

 dropped back on Toomavara, where a car was waiting to take 

 me to catch the evening train from Cloughjordan to Limerick. 

 Of the three most interesting days that followed I have 

 already written in this Journal (ix., pp. 260-5). 



On the morning of August 19 I cycled from Longford to 

 Ballymahon. An outcrop of Old Red Sandstone near Castlerea, 

 visited on the way, yielded some welcome calcifuge species. 

 Striking westward for Lough Ree, Gorteen bog was crossed, 

 and its vegetation proved to be chiefly composed of Rhynchos- 

 pora fusca and R. alba ; the former, though unrecorded for the 

 county (save on a previous page of the present paper) proved 

 to be one of the most abundant plants of western Longford. 

 The mouth of the Inny yielded in interesting flora, as 

 recorded by Messrs. Barrington and Vowel in 1887, including 

 Lathyrus palustris and Shim latifolhim. Thence north-west 

 along the shore and over boggy ground to the Bilberry River 

 getting Potamogeton coloratus, unrecorded in the Lough Ree 

 report, and Lamia polyrhiza, recorded from one station in 

 Westmeath. Bilberry River was deep and slow, full of water- 

 plants, with treacherous floating margins, and I swam it with 

 some difficulty, getting on the bank Galium uliginosuiti, which 



