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Razaumofskia pusilla (Razoumoeskya)
Razaumofskia pusilla (Razoumoeskya)
Razoumoeskya tsugensis
Razoumoeskya tsugensis
Reforestation
Region of the Kicking Horse, Canadian Pacific Railroad
Rhodomela
Rhodomela lycopodioides
Rhus glabra
Rhus glabra, winter condition
Rhus hirta (Rhus typhina)
Rhus radicans (Toxicodendron radicans)
Rhus vernix (Sorindeia madagascariensis)
Rhus vernix (Sorindeia madagascariensis)
Ribes
Ribes floridum (Ribes americanum)
Ribes prostratum
Ring of fungus on the turf
Rinodina sophodes
Rinodina sophodes
Rinodina sophodes
River vegetation, Minnesota River.
Road at Banff
Roadmaking
Roadside vegetation in summer
Roadside vegetation in winter, St. Anthony Park
Roadside vegetation of nettles and vines. Winter aspect.
Robinia
Robinia
Robinia
Rockery, Kew Gardens
Rockery, Kew Gardens
Rock lichens
Rock lichens
Rock lichens
Rock lichens
Rock lichens, Umbilicaria vellea
Rock lichens, Umbilicaria vellea
Rock mosses
Rock plants, Achillea millefolium
Rocks
Rocks on the edge of Mound
Rocks without lichens 150 feet from foot of Great Glacier with Glacier in background
Rock vegetation and pot hole
Rock vegetation and waterfall
Rock vegetation, lichens and mosses
Rock vegetation near Duluth. White pines, white cedars and junipers.
Rock vegetation, Talus of Cladonia
Rocky promontory of black slate
Rocky shore line