Page:VCH Warwickshire 1.djvu/94

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A HISTORY OF WARWICKSHIRE Ancura multifida (L.) - sinuata (Dicks.) pinguis (L.) Metzgeria furcata (L.) Marchantia polymorpha (L.) Conocephalus conicus (L.) Rehoulia hemisphaerica (L.) Lunularia cruciata (L.) Riccia glauca (L.) - crystallina (L.) glaucescens (Carr.) Ricciella fluitans (L.) Anthoceros laevis (L.) punctatus (L.) THE FRESHWATER The following list a very incomplete record of the Warwickshire freshwater alga? represents only the imperfect examination of a limited portion of the northern division of the county. A systematic examin- ation of the county as a whole would materially increase the number of plants recorded. The records of Purton and the elder botanists have not been included in the following list as those were few and not always reliable. Pleurococcus vulgaris (Menegh) Porphyridium cruentum (Nageli) Botrydina vulgaris (Br^b.) Tetraspora bullosa (Ag.) - lubrica (Ag.) Apiocystis Brauniana (Nageli) Protococcus viridis (Cohn) Scenedesmus quadricaudatus (Breb.) - acutus (Meyen) obtusus (Meyen) Pediastrum Boryanum (Turp.) Hydrodictyon utriculatum (Roth.) Chlamydococcus pluvialis (A. Braun) Volvox globator (L.) Pandorina morum, Ehrenb. Gonium pectorale, Moll. Micrasterias rotata (Ralfs.) - denticulata (Breb.) - truncata (Corda) - crenata (Breb.) i.uastrum verrucosum (Ehrenb.) Zygnema cruciatum (Vauch.) Spirogyra nitida (Dill.) condensata (Vauch.) - flavescens (Hass.) longata (Vauch.) var. communis (Dill.) Mesocarpus pleurocarpus (De Bary) - scalaris (Hass.) Botrydium granulatum (L.) Vaucheria terristris (Lyngb.) sessilis (Vauch.) Vaucheria Dillwynii (Hass.) - geminata (Vauch.) Prasiola crispa (Ktitz) Enteromorpha intestinalis (Link.) Cladophora crispata (Roth.) - glomerata (L.) Bulbochaste setigera (Ag.) Schizogonium murale (Ktitz) Stigeoclonium nanum (Dill.) Drapardnaldia glomerata (Ag.) - plumosa (Vauch.) Chaetophora elegans (Ag.) - endivasfolia (Ag.) Coleochaete scutata (Bre'b.) Aphanocapsa virescens (Nag.) Nostoc commune (Vauch.) - sphaericum (Vauch.) - caeruleum (Lyngb.) verrucosum (Vauch.) Oscillaria teriuis (Ag.) - muscorum (Carm.) MS. - limosa (Ag.) - nigra (Vauch.) Lyngbya ochracea (Thur.) Tolypothrix distorta (Mull.) Gloiotrichia natans (Thur.) - pisum (Thur.) Batrachospermum vagum (Harv.) - confusum (Harv.) - atrum (Harv.) Lemanea fluviatilis (Agardh.)