THE FLORA OF LIVEEPOOL. 



5. P. PBttFOLiATUS. L. (Perfoliate P.) July. U 



Canal between Bootle and Litherland, very abundant. 



6. P. HBTEROPHYLLUS. Schrcb. (Various-leaved P.) June, 



July. U 



In a large ditch on Cros^by Marsh, and in deep ditches 

 north of Crosby,— J.S., in Herb. Bidston Marsh, — H. 

 Shepherd, in HaUs Flora. 



7. P. RUFESCENS. Schrad. (Reddish P,) July. % 



Ditches and streams on Altcar Marsh, abundant Abun- 

 dant in pits on Formby Marsh, — W.S. 



'* The iloating leaves of the different species afford an agreeable shade to fish, and 

 are the habitation and food of Hydrocampa Potanwgeton (the Brown China Mark)."—- 

 Baines. 



8. P. NATANs. L. (Sharp-fruited broad-leaved P.) June, 



July. 4 



Ponds and ditches, very frequent 



2. RUPPTA. Linn. Ruppia. Tetrand. Tetragyn. L. 

 1. R. MARiTiMA. L. (Sea Ruppia.) July, August. 1\. 



Salt water pools and ditches. Plentiful in pools and ditches 

 near "WtJlasey Pool. Ditches by the shore a little beyond 

 Tranmere Hotel. Crosby, — E. Tudor. 



3. ZANNICHELLIA. Linn. Horned Pondweed. 

 Monoic. Monand. L. 



L Z. PALUsTRis. L. (Common H.) August. 



Ponds and ditches, frequent, both in Wirral and Lancashire. 



4. ZOSTERA. Linn. Grass-iorack. Monoec. Tricmd. L. 

 1. Z. MARINA. L. (Broad-leaved G.) July, August. 2+ 



Salt water pools and ditches, not unfrequent Hoylako, 

 Formby, near the mouth of the Alt, Tranmere Pool, A'c. 



The minute Algto, Conferva zostericola, Ulva plant agitua, Berkeleya fragilis, and 

 ExilariaflabeUaia, are found upon this plant. 



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