634 FLORA OF BERKSHIRE ^ 



In comparing the flora of Berkshire with that of its bordering 

 county of Hampshire, I omit the plants peculiar to the Isle 

 of Wight, and also maritime species. The chief plants of the 

 mainland of Hampshire which are not on authentic record for 

 Berkshire are Ranunculus iripartitus, Viola persicaefolia, Silene nutans 

 (casual in Berks), Cerastium pumilum, Linum angustifolium, Trifolium 

 (flomeraium, Vicia Orobus, Lathyrus palustris, Tilia parvifolia {T. cordata), 

 Py^-us scancUca (P. rotundifolia, var. decipiens), Chrysosplenium altemifolium, 

 2'illaea muscosa, Drosera anglica, Ludwigia apetala {L. ri<^i^^stris), Oenanthe 

 plmiyinelloides, Senecio riscosus, Centaurea Calcitrapa, Phytemna orbiculare, 

 Campamda patula (casual in Berkshire), Oxycoccos, Microcala, Pulmonaria 

 angustifolia, Baiisia viscosa, Utricidaria inte7inedia, Pinguicula lusitanica, 

 Mentha rotundifolia, Melittis Melissophyllum, Stachys germanica^ Hemiaria 

 hirsuta (? colonist), Malaxis, Gyrostachis {Spiranthes) aestivalis j Gladiolus, 

 Polygonatum officinale, Sparganium minimum, Potaynogeton gramineum, 

 P. decipiens, Cyperus fuscus, Eriophoruni vaginatum, E. gracile, Rynchospora 

 fusca, Cladium, Carex diandra [teretiuscidd), C. limosa, C. humilis, C. montana, 

 C. flava, var, cyperoides, C. filiformis, Homalocenchi'us {Leersia), Gastridium, 

 Beschampsia discolor (setacea), Bromus madritensis, Lycopodium alpinum, 

 Chara connivens, and C. aspera. 



The following plants, which are recorded in ^Mr. Townsend's Flo7-a 

 of Hampshire, appear to me to require additional evidence before they 

 can be admitted as native plants of the mainland, namely, Ranuncidus 

 ophioglossifoUus, Melampxjrum crisiatum, Mentha pratensis, and Aceras anthro- 

 pophora. 



The following plants are omitted from comparison from the fact of 

 their usually occurring near the sea, although occasionally found 

 inland : — Coronopus didyma, Cerastium tetrandrum, Trifolium suffocatum, 

 Lotus hispidus, Ruhia, Scirims nanus, S. cernuus, Carex punctata, Cyperus 

 longiis, and Scirpus Tabernaemontani. 



Berkshire therefore lacks many plants possessed by Hampshire, but 

 many of these are confined to the New Forest. The southern chalk 

 downs afi'ord a few species which do not occur, or at any rate have not 

 been noticed, on the Berkshire downs ; for instance, Phyteuma orbiculare, 

 Carex humilis, Polygala oxyptera ; but these may yet be found. The 

 boggy and heathy district round Fleet Pond and the water itself afford 

 several plants which are wanting in Berkshire. 



There are reported for Berkshire, on the other hand, several species 

 which are unrecorded for the larger county. The chief of these are 

 Anemone Pulsatilla, Sisymbrium Sophia, Roripa sylvestris {Nasturtium), Ero- 

 2)hila praecox, Elatine Hydropiper, Gei-anium rotundifolium, Astragalus danicus, 

 Callitriche polymotpha, Crepis biennis, C. taraxacifolia, C. foeiida, Pimpinella 

 major, Rosa agrestis (sepium), R. glauca, Villarsia, Verbascum Lychnitis, 

 Mentha piperita, Teucrium Scordium (?), Galeopsis speciosa, Calamintha {Nepeta) 



