632 FLORA OF BERKSHIRE 



The saline meadow near Marcham yields Buda media, Jiincus Gerardi, 

 Sch'jJus maritimus, Zannichellia pedicellata, and Tolypella glomerata, which 

 are also unrecorded for Oxfordshire. The Berkshire plants Tunica 

 prolifcra, Stellar ia umbrosa, Fumaria muralis, Elatine hexandra, E. Hydropiper, 

 Impatiens bijlora, Mijriophyllum alternifoUum, Epilobium lanceolatum, Galium 

 sylvestre, Cervicina {Wahlenbergia) hederacea, Uiricidaria major, U. minor, 

 Verbascum Lychnitis, Erigeron canadense, Polygonum dumetorum, CrocKs 

 vermis, Ornithogaliim pyrenaicum, Allium oleraceum, Poiamogeton Jluitans, 

 P. obfusifolius, P. coloratus, Carex Boenninghausiana, Apera Spica-venti, Poa 

 Chaixii, and Nitella translucens, besides Rubus nessensis, R. fissus, R. 

 sulcatus, R. Colemanni, R. lentiginosus, R. mercicus, R. Quesiierii, and other 

 brambles, have not been recorded for Oxfordshire. To the above lists 

 may be added the following species which the author has not been 

 able to find in Oxfordshire : — Anemone Pulsatilla, Ranunculus sardous, 

 Biantlms Armeria, Viola palustris, Trifolium subterraneum, Trigonella pur- 

 lyurascens, Potentilla argentea, Carduus pycnocephalus, Pulicaria vulgaris, 

 Gentiana campestris, Echinodorus ranunculoides, Carex strigosa, Juncus squar- 

 rosus, Salix repens, Equisetum sylvaticum {Rynchospora cdba, now extinct in 

 Oxfordshire), Cerastium quaternellum, Bryopteris montana, Herminium, and 

 Orobanche Rapum-genislae. 



There are several species Avhich are extremely rare in Oxfordshire, 

 being confined to a few localities, but have a much wider range and 

 are much more abundant in Berkshire ; among these are the ericetal 

 plants Vctccinium Myrtillus, Erica cinerea, E. Tetralix, Calluna, Scutellaria 

 minor, Centunculus, Millegrana, Scirpus Jluitans, Viola lactea, Anthemis nobilis, 

 Solidago Virgaurea, Juncus squarrosus, Salix rex)ens, Cerastium quaternellum, 

 Plantago Coroyioims, Rhamnus Frangula, Genista anglica, Nardus stricta, and 

 Potamogeton polygonifolius. Orchis ustidata, Polygonatum multiflorum, and 

 Anemone Pulsatilla belong to the chalk vegetation and are extremely 

 rare in Oxfordshire ; in Berkshire the first and last are local, but the 

 Solomon's Seal is widely distributed in the woods of the centre and 

 south. Leucojum aestirum is an example of a river-side plant which is 

 more frequent in Berkshire, while Oenanthe crocata, which is absent 

 from the greater part of Oxfordshire, being limited to a few stations 

 ■ near Reading, is very abundant by streams in Berkshire south of the 

 Kennet. Bipsacus pilosus also is rather more frequent in Berkshire. 

 Mercur talis annua, a rare casual in Oxfordshire, is a common garden 

 weed near Bisham in Berkshire, and Antirrhinum Orontium is a frequent 

 plant of cultivated soils in the Kennet and Loddon districts of Berk- 

 shire, but only occurs in Oxfordshire near Reading. 



Comparing the flora of Berkshire with that of Buckinghamshire, it 

 will be found that Buckinghamshire has a few plants recorded for it 

 which are not natives of Berkshire ; among these are Carum Bulbo- 



