. The Canadian field-naturalist. Natural history. 1997 Reddoch and Reddoch: The Orchids in the Ottawa District 15 Blooming Periods of Ottawa District Orchids SPECIES MAY JUN JUL AUG SEP OCT # Amerorchis rotundifolia Arethusa bulbosa Calopogon tuberosus Calypso bulbosa Coeloglossum viride Corallorhiza maculata Corallorhiza striata Corallorhiza trifida Cypripedium acaule Cypripedium arietinum Cypripedium parviflorum _^^^^__ ^^2 Cypripedium reginae ^"â¢â ^^^ 64 Epipactis helleborine _^_^_^j^jlP_^ qq Galearis spectabilis â â â ^*~ 72 Goodyera pubescens â«IH^Bâ ⢠20 Goodyera repens ^HMM^^^ 1


. The Canadian field-naturalist. Natural history. 1997 Reddoch and Reddoch: The Orchids in the Ottawa District 15 Blooming Periods of Ottawa District Orchids SPECIES MAY JUN JUL AUG SEP OCT # Amerorchis rotundifolia Arethusa bulbosa Calopogon tuberosus Calypso bulbosa Coeloglossum viride Corallorhiza maculata Corallorhiza striata Corallorhiza trifida Cypripedium acaule Cypripedium arietinum Cypripedium parviflorum _^^^^__ ^^2 Cypripedium reginae ^"â¢â ^^^ 64 Epipactis helleborine _^_^_^j^jlP_^ qq Galearis spectabilis â â â ^*~ 72 Goodyera pubescens â«IH^Bâ ⢠20 Goodyera repens ^HMM^^^ 19 Goodyera tesselata ^^^^"i^^"" 36 Liparis loeselii ^^^^^^^_ ^2 Listera auriculata ^^Mâ 9 Listera australis ^^^ 7 Listera cordata ^^^*^â 14 12 41 85 13 45 56 29 55 105 48. Malaxis monophylla ^^^â â ^H-^ 38 Malaxis unifolia âH^^^^^^^ 105 Platanthera blephariglottis HBB*â 21 Platanthera clavellata ^^^^B"^ 28 Platanthera dilatata â^â â ^*â^ 40 Platanthera flava â^â ^â h- 16 Platanthera grandiflora âiB»-^ 55 Platanthera hookeri ^^^-^M^^^^ 67 Platanthera huronensis ^^^^i^^ ⢠16 Platanthera hyperborea -Hi^^*^^-^ 85 Platanthera lacera ^â â â ^^ 31 Platanthera leucophaea â^M*- 10 Platanthera macrophylla "^Kt^^-^ 16 Platanthera obtusata ^^â â i^â 36 Platanthera orbiculata _mill^__ 4^ Platanthera psycodes âiBBBi^^ 121 Pogonia ophioglossoides ^â^^^M 79 Spiranthes casei â^^^^-^ 42 Spiranthes cernua ^^^^^â â 125 Spiranthes lacera ^^BIlBll^^â- 82 Spiranthes lucida -^â ' 19 Spiranthes romanzoffiana _^^^^^^^^^ 32 MAY JUN JUL AUG SEP OCT Table 1. All data came from the Ottawa District except those for Listera australis and Platanthera macrophylla, which were supplemented by data from adjacent parts of eastern Ontario and western Quebec. The light bar shows the range and the heavy bar shows one standard deviation about the Please note that these images are extracted from scanned page images that may have been digitally


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