Botany. 185 



1605. P. pectinatus, L. 6 7, P. Apparently not common. 



a. The most recent record is 1877, Dartford. 



b. In a large pond near Eltham Palace, 1793. 



c. In the Cray and Darenth, 1793. 



1606. P. flabellatus, Bab. (INTERRUPTUS, Kit.), 67, B. Frequent. 



1. Plumstead Marshes. Reeves. 



2. (Vossness. Dod teste Bennett. 



3. Between Greenhithe and Northfleet. Jackson. 



4. Between Strood and Cuxton ; Higham Marshes. H. 



5. Cooling Marshes ; ditches near Port Victoria. M. 



(452) RUPPIA, L. Salt marsh plants, 78, P. 



1608. R. spiralis, Hart. 



1. Isle of Grain. Jackson. 



2. Port Victoria. Dod. 



3. Cliffe Marshes, '07. L.C.C. 



1609. R. rostellata, Koch. 



1. By Cuxton Railway Station. Reeves. 



2. Between Strood and Cuxton. H. 



3. Cliffe Marshes, '07. L.C.C 



a. Ditch in the flats below Woolwich, 1877. 



1610. ZANNICHELLIA palustris, L. 58, P. or A. 



1. Hayes Ford, '97. Scargill. 



2. Eynsford. M. 



var. a.) brachystemon, Gay. Probably common, but little 

 known. 



1. Marsh ditches between Stone and Greenhithe. M. teste 

 Bennett. 



var. b.) pedicellata, Fr. Frequent in maritime and sub- 

 maritime districts. 



1. Plumstead Marshes, 1836 ; still there. 



2. Brackish ditches, Crossness. Dod. 



3. Ditches near Port Victoria ; Cooling Marshes. M. 



4. Near Higham. H. 



5. Ditch below Shorne Battery. Dod. 



6. Between Greenhithe and Northfleet ; Isle of Grain. 



Jackson, 

 a. Greenwich flats, 1877. 



