Skip to main content
1993 - 200 of 210626 results
Osmunda claytonia
Osmunda claytonia
Osmunda claytonia, fronds
Osmunda claytoniana
Osmunda regalis
Osmunda regalis, close up
Osmunda regalis, close up
Ostrya americana
Ostrya virginiana
Osumunda claytoniana
Our first beaver at the Bald Eagle Camp
Our first landing at Bald Eagle Camp
Overland with a canoe, method of transportation
Oxalis europaea
Oxalis violacea
Oxalis violacea
Oxalis violacea
Oxybaphus nyctagineus
Paeonia flower
Palm trees in Florida
Panax quinquefolius in fruit
Panax quinquefolius in fruit, near view
Panax trifolium
Panax trifolium, nearer view
Panicum capillare
Papaver
Paper Birch bark pealing
Paper Birches on Sandy Lake, looking northwest
Papyrus Fragment 13
Papyrus Fragment 3
Papyrus Fragment 7
Paradise Valley near Laggan
Parietaria pensylvanica
Parmelia
Parmelia caperata on twigs of black spruce
Parmelia consperea
Parmelia conspersa on white quartzite
Parmelia latissima
Parmelia on rocks, close up
Parmelia physodes on branch
Parmelia physodes on decaying log
Parmelia saxatilis
Parnassia
Parnassia palustris
Parnassia palustris
Parthenocissus tricuspidata leaf
Parthenocissus tricuspidata tendrils
Party at the Griggs cottage on Sand Beach
Patelostemum purpureum
Peat moss and bog at Itasca State Park
Peat moss and bog at Itasca State Park
Peat moss and bog at Itasca State Park
Pedicularis canadensis
Pedicularis canadensis
Pedicularis canadensis, another clump
Pedicularis lanceolata
Pellaea near Stillwater
Pellaea near Stillwater
Pellaea, sporophyll, close up
Pellaea, sporophyll, close up
Peltigera
Peltigera aphthosa
Peltigera aphthosa in forest
Peltigera, cedar swamp
Peltigera polydactyla
Penstemon grandiflorus
Penstemon, large flowered
Penstemon, large flowered
Penstemon pods open at top
Pentstemon grandiflorum (grandiflorus)
Pentstemon grandiflorum (grandiflorus)
Periwinkles on the rocks in Bill's Cove
Petalostemum candidum
Petalostemum candidum (Dalea candida)
Petalostemum purpureum
Petalostemum purpureum
Petalostemum villosum
Petalostemum villosum
Petalostemum villosum, close up
Petiole Gall
Petivle gall of Populus
Petrified wood
Petrified Wood
Petrified Wood
Petrified Wood
Petrified Wood, log section
Petrified wood, one piece
Petrified wood, three pieces showing annual rings, etc.
Pettigera aphthosa
Peziza
Peziza, near view
Peziza repanda
Phegopteris (Dryopteris)
Phegopteris (Dryopteris)
Phegopteris (Dryopteris)
Phegopteris (Dryopteris)
Phegopteris (Dryopteris) in the fernery
Phegopteris hexagonoptera (Dryopteris hexagonoptera)
Phegopteris polypodroides (Phegopteris connectilis)
Phegopteris polypodroides (Phegopteris connectilis)