TuENE^R : The Alg^ of Strensall Common. 



79 



Ireland, or Mr. Wills at Cape 

 gentleman my best thanks are 

 cordial co-operation. 



Batracliospermum vagum, var. tenuis- 



simum, Ag. 

 Chsetophora tuberculosa, Hooker 

 C. elegans, Hs. 

 Draparnaldia plumosa, Ag*. 

 Coleocliagte scutata, Breb. 

 Conferva floccosa, Ag. 

 Ulothrix mucosa 

 Mougeotia genuflexa, Ag. 

 Zygnema Yaucherii, var. stagnale, 



Kirsch. 

 Z. anomalum. R. 

 Z. stellinum, Vaucher. 

 Z Ealfsii, Hs. 



Zygogonium ericetorum, var. aqua- 



ticum, De B. 

 Spirogyra nitida, Dillwyn. 

 S. tenuissima, Hs. 

 Mesocarpus scalaris, Hs. 

 M. parvulus, Hs. 

 M, nummuloides, Hs. 

 CEdogonium vesicatum, Lyng. 

 CE. delicatulum, Kz. 

 Microspora fugacissima, Thurst. 

 Bulbocli83te setigera, Ag. 

 B. rectangularis, Wittr. 

 Echinella articulata. 

 Anabaina circinalis, Bory. 

 Volvox globator, Linngeus. 

 Gonium pectorale, Miiller. 

 Pediastrum Boryanum, Turb. 



„ „ B. tetras. 



„ „ var. granula- 



tum, Kz. 

 P. Ehrenbergii, Br. 

 P. pertusum, Kz. 

 Pandorina morum, Bory. 

 Scenedesmus quadricauda, Turp. 

 S. obliquus, Turp. 

 S. acutus, Meyen. 

 Sorastrum spinulosum, Ng. 

 Ehaphidium falcatum, Eab. 

 Polyedrium tetrahedricum, Ng. 

 P. enorme, E. 



il-Curig, in Wales. To the latter 

 due for his kindly assistance and 



Oscillatoria nigra, Yaucher. 

 Leptothrix ochracea, Kz. 

 Apiocystis Brauniana, Ng. 

 Chlorococcum gigas, Grun. 

 Eremospbeera viridis, Be B. 

 Botryococcus Braunii, Kz. 

 Glaeocystis rupestris, Lyng. 



G. ampla, Kz. 



Cblamydococcus pluvialis, Br. 

 PaLnella hyalina, Breb, 

 P. mucosa^ Kz. 



DIATOMACE^. 



Acbnanthidium lanceolatum 

 Synedra lanceolata 

 Gomphonema geminatum 

 Tabellaria flocculosa 

 Pinnularia radiosa 

 Cocconema lanceolatum 



C. parvum 

 Stauroneis spicula 

 Diatoma elongatum 



D. vulgar e 



DESMIDIE^. 



Gonatozygon Ealfsii, De B. 

 Hyalotbeca dissiliens, Breb. 



H. mucosa, Ebr. 

 Didymoprium Borreri, E. 

 D. Grevillei, Kz. 

 Desmidium aptogonum, Breb. 



D. Swartzii, Ag. 

 Sphserozosma vertebratum, E. 

 S. excavatum, E. 

 Micrasterias papillifera, Breb. 

 M. crenata, Breb. 



M. denticulata, Breb. 

 M. rotata, E. 



M. Crux-Melitensis, Ebr. 

 Spondylosium pulcbellum, * Arcber's 



form a, Bail. 

 Euastrum elegans, Breb. 



E. pectinatum, Breb. 

 E. binale, E. 



E binale, var. elobatum, Ld. 

 E. verrucosum, Ehr. 



