A HISTORY OF KENT 



Lemnace^. — Lemna gibba, L. and L. polyrhiza, L. (great duckweed) 

 are both local, but occur in all the districts. Wolffia Michelii, Schleid. 

 has been found in several parts of districts 4, 5, and also near Lydd. 



Alismace^. — Alisma ranuiiculoides, L., absent only from districts 

 3, 6, 9, is yet rare, except near Canterbury, Sandwich and Deal. The 

 arrowhead \Sagittaria sagittifolia, L.) abounds in the Weald and in Thanet, 

 though elsewhere uncommon ; Butomus umbellatus, L. (flowering rush) 

 is frequent ; but Damason'mm steilatum, Pers. {Actinocarpus Damasonium, 

 R. Br.), always very scarce, has not, we believe, been met with lately. 



Naiad ACE^. — Potai7iogeton polygomf alius, Pourr. is local rather than 

 rare. P. lucens, L., P. pitsillus, L., P. pectinatus, L., and P. interruptus. 

 Kit. {Jiabellatus, Bab.) are all frequent ; the last-named abounds in 

 brackish water. Of the scarcer species we may mention P. coloratus, 

 Hornem. {plantagineus, Du Croz), found at Ham Ponds, Preston and 

 Hothfield ; P. aipinus, Balb. {rufescens, Schrad.), about Tonbridge, 

 Marden, Staplehurst and Sholden ; P. angustifo/ius, Presl {Zizii, Roth), 

 in the Stour near Wye ; P. acutifolius. Link, at Withamdrew (district 

 5) and Appledore ; P. obtusifolius, Mert. & Koch, rare in seven dis- 

 tricts ; and P. Friesii, Rupr., at Dartford, Marden and several places in 

 Thanet. Rtippia spiralis, Hartm. occurs in six localities (districts 2, 3, 

 10); R. rostellata, Koch being fairly common in saline pools and ditches, 

 often accompanied by Zannichellia pedicellata, Fr. Zostera marina, L. 

 (grass-wrack) is apparently absent from the south coast, being confined 

 to districts 3, 4. 



Cyperace^. — Cyperus longus, L. (galingale) has but a single station 

 near Seabrooke (district 10). Eleocharis uniglumis, Reichb., only found 

 on the coast, has been noticed at Deal, Ham Ponds and Dungeness ; 

 E. multicaulis, Sm. at Keston, Greenhithe, Faversham, Hothfield and 

 Tunbridge Wells. Scirpus paiicijiorus, Lightf occurs at Ham Ponds and 

 Dungeness ; 6'. ccespitosus, L., S. fluitans, L., and S. setaceus, L. being 

 all rather uncommon. S. carinatus, Sm., now lost at Greenwich, grows 

 plentifully with S. triqueter, L. by the Medway at Aylesford. S. syhaticus, 

 L. has its headquarters in the Weald ; and ^S". Caricis, Retz {Blysmus 

 compressus, Panz) is scarce in six districts. Eriophorum vaginatum, L. 

 (hare's-tail cotton grass) seems to be lost from Tunbridge Wells ; its 

 alleged stations in Thanet rest on questionable authority. E. angusti- 

 folium. Roth (common cotton-grass) is thinly distributed ; and E. 

 latifolium, Hoppe has but two stations at Herringe and Willesborough. 

 Rhyncospora alba, Vahl has only been found near Tunbridge Wells ; 

 Schcenus nigricans, L. near Folkestone, and perhaps in Thanet. Cladium 

 jamaiceme, Crantz occurs in district 5 at Ham Ponds, Hacklinge, Sholden 

 and near Deal. The sedges have not yet been thoroughly worked out 

 in Kent. Among the more frequent species are Carex divisa, L. (sub- 

 maritime), C. disticha, Huds., C. arenaria, L. (inland on Wrotham 

 Heath), C. paniculata, L., C. vulpina, L., C. muricata, L., C. divulsa. 

 Good., C. remota, L., C. ovalis. Good., C. acuta, L. (mainly in district 

 8), C. Goodenowii,]. Gay (vulgaris, Fr.), C.jiacca, Schreb. [glauca. Scop), 



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