THE PRE-GLACIAL FLORA OF BRITAIN, 211 
TYPHACK. | CYPERACEÆ. 
Sparganium erectum, Linn. ? Eleocharis sp. 
Scirpus fluitans, Linn. 
ALISMACEÆ. S. lacustris, Linn. 
. . S. Tabernemontani, C. C. Gmel. 
Alisma Plantago, Linn. E on) . t C Pl 
"M Миу . <riophorum vaginatum, Linn. 
Sagittaria sagittifolia, Linn. D Бабит, nmn 
7 Carex dioica, Linn. 
N C. muricata, Linn. 
DAIADACEZE, C. cf. helodes, Link. 
Potamogeton natans, Linn. 3. hirta, Linn. 
P. heterophyllus, Schreb. C. acutiformis, Ehrh. 
P. prelongus, Wulf. 2. riparia, Curtis, 
P. perfoliatus, Linn. C. rostrata, Stokes. 
P. crispus, Linn. C. sp. 9. 
P. obtusifolius, Mert. & Koch. C. sp. 10. 
P. pusillus, Linn. C. vesicaria, Linn. 
P. trichoides, Cham. 
P. pectinatus, Linn. GRAMINEÆ. 
Zannichellia palustris, Linn. Phragmites communis, Trin. 
Z. pedunculata, Reich. 
Najas marina, Linn. ЕплсЕв. 
N. minor, Allioni. Osmunda regalis, Linn. 
NOTES ON THE PLANTS. 
THALICTRUM FLAVUM, Linn. (Plate 11. fig. 1.) 
Achenes are not uncommon at several localities. They agree exactly with 
recent specimens. | 
RANUNCULUS AQUATILIS, Linn. (PI. 11. figs. 2, 3.) 
Achenes are abundant and variable ; but we are unable to separate the 
different species of Batrachian Zanunculi from fruits alone. We must 
therefore leave them under the Linnean aggregate Ranunculus aquatilis. 
RANUNCULUS SCELERATUS, Linn. (РІ. 11. fig. 4.) 
Indistinguishable from recent achenes. Found rarely at Beeston, Cromer, 
and Pakefield. 
RANUNCULUS FrAMMULA, Linn. (РІ. 11. fig. 5.) 
As yet only found at Pakefield. 
RaNvNOULUS LINGUA, Linn. (Pl. 11. fig. 6.) 
Calls for no remark. Achenes have been found at Beeston and Pakefield. 
