Potamogeton.] NAIADACE. 311 
First record in 1756: Dr. Smith, Hist. of Kerry, p. 381, 
No. 79, ‘“‘ In the river Galey and other places.” 
P. flabellatus Bab. P. interruptus Kit. 
Districts — II. — — V. — VII. VIII. IX. 
Native. Ditches, lakes and slow streams near the sea. 
Rare over the greater portion of the county, locally abundant 
in the north. Peren. June—July. 
II. Abundant in Drongawn Lough east of Parknasilla, 
1913.—V. Abundant in Castlegregory Lake and near Derry- 
more, Tralee Bay, 1894-1907.—VII. In brackish ponds 
between Tralee and Blennerville, 1914.—VIII. In the old 
River Brick near Lixnaw and in ditches, &c., near Sleveen, 
1904 ; in ditches, &c., near Cashen bridge, and—IX. On 
the north side of the Cashen River, 1902-08: R.W.S. 
First record in 1889: R.W.S., Journ. of Bot. 
The var. scopaRius Fryer is abundant in Castlegregory 
Lake. 
RUPPIA Linn. 
R. maritima Linn. R. spiralis Hartm. 
Districts — — — — V. — Wi — — 
Native. In brackish water near the sea. Rare and local. 
Peren. July—August. 
V. In Castlegregory Lake and abundant in the stream 
flowing from it : R.W.S. 1889, and in 1907.—VII. Plentiful 
in a small pond on the “ Island ”’ west of Barrow Harbour : 
R.W.S. 1891. 
First record in 1889: R.W.S., Journ. of Bot. 
No doubt rarer than the following species in Kerry, but 
probably more frequent than would appear from the above 
records. 
R. rostellata Koch. 
Districts I. I. WI — V. — Vil. — IX. 
Native. Tidal mudflats, brackish pools, ditches and streams. 
Rather common and locally abundant. Peren. June— 
August. 
First record in 1884: Hart, Proc. RIA. 
Almost certainly overlooked in District VIII. 
ZANNICHELLIA Linn. 
Z. palustris Linn. 
Districts — — — — V. — VIE. VIl. IX. 
Native. Ponds, ditches and lake-margins, usually near the 
sea. Rather common in the north and in the Dingle 
