312 NAIADACEA. [Zannichellia. 
peninsula, very rare inland, and not yet noticed in the south. 
Peren. June—August. 
Inland localities are—VII. In a pond at Ballycarty east 
of Tralee, 1890 ; in a quarry-hole near Castleisland, 1894.— 
VIII. In Lerrig pond north of Ardfert, 1902: R.W.S. 
First record in 1884: Hart, Proc. R.I.A. 
The most common form of this plant about the coast 
appears to be Z. pedunculata Reighb., while inland Z. brachy- 
stemon Gay—with almost sessile fruit, has alone been 
gathered. 
ZOSTERA Linn. 
Z. marina Linn. Grass-wrack. 
Districts I. ID. Il. — V. — VII. VIII. IX. 
Native. In the sea and on mud in estuaries. Common and 
locally abundant. Peren. July—August. 
First record in 1855: J. Woods, Phytol., p. 159. 
Var. ANGUSTIFOLIA Fries. Occurs in many places, often 
growing with the type. 
Z. nana Roth. 
Districts — -— — — V. — VIL — — 
Native. Tidal estuaries. Very rare and local. Peren. 
July—August. 
V. Abundant on the south side of the Cloghane inlet, 
Brandon Bay, 1913 : Praeger.---VII. In two or three places 
along the north shore of Tralee Bay between the Spa and 
Fenit : R.W.S. 1888, and in 1902. 
First record in 1888: R.W.S., Journ. of Bot. 
The two bays from which Z. nana has been recorded, 
connect with one another, and are only separated by the 
Castlegregory stretch of sandhills and the Magharee Islands. 
It will, no doubt, be found in other localities round the coast. 
NAIAS Linn. 
N. flexilis Rostk. 
Districts — II. UWI. IV. — VI. ~ ~~ ~— 
Native. In rather shallow water in lakes. Very rare, but 
locally abundant. Ann. August—September. 
II. In the Upper Lake, Killarney, south of Roynane’s 
Island, 1906—locality exending into VI.: Hanbury & 
£.W.S.—III. In the south-west corner of Caragh Lake, 
Glencar, 1896-1906 : R.W.S.—IV. In the south-east corner 
of Caragh Lake, in water from fifteen to twenty feet in depth 
