224 



YORKSHIRE NATURALISTS UNION. 



INDEX, 



page 



abbreviata, Microspora ... 27 



abbreviatum, Cosniarium ... 92 



abruptum, Closterium .. 54 



Cosniarium ... 92 



abundans, Scenedesmus ... 120 



acarides, Staurastnim ... 108 



acerosum, Closterium ... 52 



Achnantheje, Family ... 187 



Achnanthes, Genus .. . ... 187 



Achnanthidium, Genus ... 187 



aciculare, Closterium ... 54 



Rhaphidium ... 121 



acicularis, Nitzschia... ... 216 



Synedra ... ... 196 



aciculifera, Trochiscia ... 136 



aciculiferum, Staurastrum ... 98 



acrosphteria, Navicula -. 168 



acrosporum, QJdogonium ... 16 



aculeatum, Staurastrum ... 106 



Xanthidium ... 68 



acuminata, Navicula ... 170 



Nitzschia ... 212 



acuminatum, Characium ... 126 



Gomphonema ... 184 



Pleurosigma ... 182 



Selenastrum ... 123 



Acus, Synedra .. ... 198 



acuta, Navicula ... ... 171 



Spirot^nia ... ... 41 



Stauroneis .. ... 164 



acutiformis, Scenedesmus ... 121 



acutius, Desmidiuni . . . ... 110 



acutum, Closterium ... ... 56 



Staurastrum ... 103 



acutus, Scenedesmus ... 119 



£egagropila, Cladophora ... 31 



Tolypothrix ... 140 



tequalis, Hormiscia ... ... 20 



Synedra ... ... 198 



Eeruginea, Merismopedia ... 154 



Krugineo-ccerulea, Lyngbya ... 145 



/.age 



iEruginosii, Clathrocyslis ... 155 



Glojocapsa ... 156 



Eeruginosu.-i, .Synechococcus ... 153 



affine, Euastrum ... ... 61 



affinis, Amphora ... ... 159 



Conferva ... ... 26 



Cymbella ... ... 160 



Navicula ... ... 179 



. Synedra ... ... 199 



Agardhianum, Nephrocytium... 130 



Agardhii, Zygnema ... ... 35 



Ahlstrandii, CEdogonium ... 17 



alata, Amphiprora ... ... 183 



alatum, Cosmarium . . . ... 86 



Scytonema ... ... 139 



allantoideum, Nephrocytium .. 131 



Allmani, Urococcus... ... 134 



alpestris, Epithemia. . . ... 191 



alpina, Navicula ... ... 167 



alpinum, Staurastrum ... 99 



altemans, Staurastrum ... loi 



ambigua, Navicula ... ... 176 



Americana, Micrasterias ... 67 



amoebo-granulosum, Cosmarium 84 



amoebum, Cosmarium ... 84 



amcenum, Cosmarium ... 88 



■ Staurastrum ... 107 



amphibia, Nitzschia ... 215 



Oscillatoria ... 149 



amphicephala, Epithemia ... 191 



Synedra ... 199 



Amphigomphus, Navicula ... 178 



Amphioxys, Ceratoneis ... 196 



Hantzschia ... 210 



Amphipleura, Genus ... 181 



Amphiprora, Genus.. ... 183 



Amphirhynchus, Navicula ... 178 



Synedra ... 198 



Amphisboena, Navicula ... 177 



.\mphithrix, Genus... ... 137 



Amphora, Genus ... ... 158 



Trans. V.N.U., 1901 (pub. July igoi). Uot. Series, Vol. 5. 



