ZannioMlia.] NAIADACE^. 38& 



Z. polyoarpa Nolte. 



Districts _ __________ XII> 



XII. Abundant in brackisli ditcheB in the long-neglected 



Yictoria Park, and in tie reclaimed land between Queen's Quay and 



the Park [Belfast], 1872 {Stewart) : Bot. Ex. CI. Rep. 1876. 



First found in the British Isles, at Belfast, by S. A. Stewart in 



1872. 



ZOSTEEA Linn. 



1. Z. marina Linn. — Grass-wrack. 



Districts I. II. — lY. V. VI. — VIII. IX. — XL XII. 

 Lat. 51^°-56i°. Coasts of aU Ireland. Type, British. 



Muddy estuaries and shallow sea shores ; common. Fl. July- 

 August. 



2. Z. nana Eoth — JDwa/rf Grass-wrack. 



Districts I. IV. V. VIII. — — XL — 



Lat. 52i°-55J°. South to North. Type, English. 



Muddy estuaries ; rare. Fl. July-September. 



I. About Spa, Tralee Bay, Eerry : R. W. JS. 188S.—IY. Plenti- 

 ful on the mud flats south of Wexford Harbour : Marshall i8qb. — 

 V. On mud in the creek close to the railway station at Baldoyle, 

 Dublin {More) : Cyh. Abundant below the Club house, Portmar- 

 nock golf links, Dublin : JEa/rt i8g'j. Estuary of the Nanny river 

 above the bridge at Laytown, Meath : Praeger z8g'j. — VIII. Shore at 

 Gentian Hill, Galway {Miss Sensman Sf Prof. T. Johnson) : Jr. Nat. 

 i8qs. — XL Abundant on the strand at Ards : Ha/rt. in Serh. 



Eirst discovered in Ireland by A. G. More, at Baldoyle, in 1864> 



NAIAS Linn. 



1. N. flexilis Eostk. — Slender Naiad. 



Caulinia fleeilis "WiUd. 



Districts I. — — — — — — VIII. — — 



Lat. 52°-53^°. "West Ireland, Kerry and Galway only. 



Lowland. In shallow water in lakes ; very rare. Fl. August. 



I. In the upper end of Lough Caragh, Kerry {More) : Jowrn. of 

 Bot. iSyj — and in 1896 ; R. W. S. In Eoss Bay, KiUamey 



