406 Oost-Vlanderen) Belgium :: see Sint-Laurent Opole) Poland :: see Dambrau, Gross Lassowitz, Grunowitz, Scheidlow, Schimnitz, Tillowitz Oporto, see Porto (Porto) Portugal : Hauck & Richter 94, 350g Oppeln, see Dambrau (Opole) Poland : Rabenhorst 1953; see also Schimmritz (Opole) Poland : Rabenhorst 2208 Oppland) Norway :: see Dove, Lom Oran) Algeria :: see Mascara; Sainte Théréz, Golfe de Oran) Algeria : Van Heurck 534 : Actinoptychus undulatus Oran) Algeria : Van Heurck 534 : Coscinodiscus argus Oran) Algeria : Van Heurck 534 : Coscinodiscus curvulatus Grunov v. [unnamed] Oran) Algeria : Van Heurck 534 : Coscinodiscus fimbriatus Oran) Algeria : Van Heurck 534 : Coscinodiscus marginatus Oran) Algeria : Van Heurck 534 : Coscinodiscus radiatus Oran, see also Sainte Théréze, Golfe de, Algeria : Mougeot 604 Orebro) Sweden :: see Degernäs, Kringsjötorp Oregon) US :: see Klamath Lake Oregon) US : H.L. Smith 58 : Bibliarium clypeus Ehrenberg Oregon) US : H.L. Smith 58 : Bibliarium stella Ehrenberg Oregon) US : H.L. Smith 108 : Cyclotella oregonica Ehrenberg Oregon) US : H.L. Smith 108 : Stephanodiscus [sp] Oregon) US : H.L. Smith 620 : Bibliarium ellipticum Ehrenberg Oregon) US : Van Heurck 349 : Fragilaria virescens Oregon) US : Van Heurck 349 : Melosira arenaria Oregon) US : Van Heurck 349 : Melosira crenulata Oregon) US : Van Heurck 349 : Stauroeis phoenicenteron Oregon) US : Van Heurck 349 : Tetracyclus lacustris Oregon) US : Van Heurck 349 : Tetracyclus lacustris v. emarginata Oregon) US : Van Heurck 349 : Tetracyclus rhombus (Ehrenberg) Grunow Orient, Long Island, see Orient Point (New York) US : H.L. Smith 510 : Striatella unipunctata C. Agardh Ormesby (Norfolk) England : H.L. Smith 597 : Triceratium exiguum W. Smith Ormesby (Norfolk) England : Kitton 4 : Melosira orichalcea Ormesby (Norfolk) England : Kitton 44 : Navicula cuspidata Ormesby (Norfolk) England : Kitton 44 : Navicula cymbula Ormesby (Norfolk) England : Kitton 44 : Navicula humilis Ormesby (Norfolk) England : Kitton 44 : Navicula mesotyla Ormesby (Norfolk) England : Kitton 44 : Pleurosigma acuminatum Kützing Ormesby (Norfolk) England : Kitton 44 : Pleurosigma lacustre W. Smith Ormesby (Norfolk) England : Kitton 44 : Pleurosigma spenceri W. Smith Ormesby (Norfolk) England : Kitton 45 : Synedra splendens Kützing Ormesby (Norfolk) England : Kitton 45 : Synedra ulna W. Smith Ormesby (Norfolk) England : Kitton 45 : Synedra ulna v. [gamma] W. Smith Ormesby (Norfolk) England : Kitton 53 : Epithemia turgida Ormesby (Norfolk) England : Kitton 53 : Gomphonema acuminatum v. coronatum Ormesby (Norfolk) England : Kitton 53 : Navicula cryptocephala Kützing Ormesby (Norfolk) England : Kitton 53 : Navicula radiosa v. acuta Ormesby (Norfolk) England : Kitton 53 : Navicula rhynchocephala Ormesby (Norfolk) England : Kitton 53 : Nitzschia linearis Ormesby (Norfolk) England : Kitton 53 : Nitzschia sigmoidea Ormesby (Norfolk) England : Kitton 53 : Pleurosigma attenuatum Ormesby (Norfolk) England : Kitton 53 : Stauroeis anceps Ehrenberg Ormesby (Norfolk) England : Kitton拉: Epithemia turgida Ormesby (Norfolk) England : Kitton 54 : Gomphonema acuminatum v. coronatum Ormesby (Norfolk) England : Kitton 54 : Navicula cryptocephala Kützing Ormesby (Norfolk) England : Kitton 54 : Navicula oblonga Ormesby (Norfolk) England : Kitton 54 : Navicula radiosa v. acuta Ormesby (Norfolk) England : Kitton 54 : Navicula rhynchocephala Ormesby (Norfolk) England : Kitton 54 : Nitzschia linearis Ormesby (Norfolk) England : Kitton 54 : Nitzschia sigmoidea Ormesby (Norfolk) England : Kitton 54 : Pleurosigma attenuatum Ormesby (Norfolk) England : Kitton 54 : Stauroeis anceps Ehrenberg Ormesby (Norfolk) England : Kitton 85 : Fragilaria parasitica Ormesby (Norfolk) England : Kitton 85 : Fragilaria parasitica v. constricta Ormesby (Norfolk) England : Kitton 85 : Fragilaria parasitica v. trigona Ormesby (Norfolk) England : Kitton 85 : Staurosira construens Ormesby (Norfolk) England : Kitton 85 : Synedra delicatissima Ormesby (Norfolk) England : Kitton 86 : Triceratium exiguum W. Smith Ormesby (Norfolk) England : Kitton 86 : Fragilaria parasitica Ormesby (Norfolk) England : Kitton 86 : Fragilaria parasitica v. constricta Ormesby (Norfolk) England : Kitton 86 : Fragilaria parasitica v. trigona