466 VALLISNERIACEAE 



HYDROCHARIS, Linn. Gen. n. 999 1 Stratiotes, Dill. Gen. g). 



H. Morsus-ranae, Linn. Sp. PI. 1036 (1753). Frog'bit. 

 Morsus Eana, Ger. Em. 818. 



Top. Bot. 408. Syme, E. B. ix. 78, t. 1444. Nyman, 678. Fl. Oxf. 278. 



Native. Lacustral. Ditches, ponds, slow stagnant streams. Locally 

 common. P. July-August. 



First record. Alba Mmor. Sunt inrfuper antiquis praetermissae Nym- 

 pheae duae, potrices quidem, et aquarum alumnae : verum 

 regionum duntaxat (aut certe plurimum") Septehtrionalium, prae- 

 sertim Angliae, via quae Londino Oxoniam et Bristoiam ducit, 

 secus et trans aquas viarum pigriores minusque profundas, 

 numerosum exerit liaec in tenuioribus pediculis et non dissimilibus 

 folium, fere magnitudine Chelidonii minoris, aut Palustris Calthae, 

 Dotterbloemen vocatae ; defluente flore candido Papaveris, Rhaedis, 

 aut Melampyri, capitula et semina supersunt, crassiusculo cortice 

 obducta, nullius dum usus, Lohel, Adversaria, 257, 1576. Sonning, 

 Mr. S. Eudge, 1800, in Herb. Brit. Mus. 



2. Oek. South Hinksey, Baxter, 1823. Kennington. Radley. 



Abingdon, and in ditches by the Thames in several localities. 



3. Pang. [' Ashridge Wood. Hampstead Norris,' in Britt. Contr., is 



an erroneous transcript by Mr. Britten.] Near Reading, Trimen. 

 Moulsford. Pangbourn. 



4. Kennet. Ditches near Reading, Tufnail. Southcote. 



5. Loddon. Sonning, Rudge. Foot of Winter Hill. Wargrave, 



Melvill in Briit. Contr. Windsor Park, W. T. Dyer in Phyt. v. (1861) 

 367. Frequent in ditches at Hemerton. Remenham, Mr. Stanton. 

 Hurley, G. D. Leslie. (Figured on the title-page of Our River.) 

 Frequent in ponds and ditches (about Marlow), Mill. Windsor 

 Home Park, Bolton King. Old Moat of Whistley Park, Melvill. 

 Bulmarsh, Tufnail. Twyford, Bisham. Bray. Ruscombe. 

 Old Windsor. 

 Dillenius considered, I believe, that Lobel referred to a form of the 

 White Water Lily. 



Hydrocharis is recorded for all the bordering counties except Wilts. 



STRATIOTES, Linn. Gen. n. 607. 



S. Aloides, Linn. Sp. PI. 535 (1753). Water Soldier, Water Aloe. 



Aloides, Boerhaave. Militaris Aizoides, Gerard, 677. 



Top. Bot. 408. Syme, E. B. ix. 80, t. 1445. Nyman, 678. Fl. Oxf. 378. 

 Denizen or native. Lacustral. Small streams. Very local. P. July. 

 First recorded by Mr. Baxter in Walker's Flora of Oxfordshire, 1833. 

 2. Oek. Plentiful in watery ditches by the side of the towing-path 

 near the Cottages in Nuneham Park, but on the Berkshire side 



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