Plants

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Plants
View image Go to the article Fig. 1. Entoloma salmoneum. The salmon-colored entoloma is a common recycler of forest litter in North American forests.	View image Go to the article Fig. 2. Mycorrhizae formed between ponderosa pine and Laccaria laccata in the laboratory. Note the branched pine roots and threadlike fungal hyphae.	View image Go to the article Fig. 3. Cantharellus cibarius. The chanterelle is one of the important fungi forming mycorrhizae with pines and oaks in North American forests.
View image Go to the article Fig. 1. Cladina mitis and C. rangiferina (reindeer moss), Voyageurs National Park, MN.	View image Go to the article The newly discovered moss genus and species, Ozobryum ogalalense, is known only from four localities in northwest Kansas and adjacent Nebraska (Merrill 1992). The species forms soft, compact cushions on exposed lime-rich outcrops in native prairie pastures. The outcrops are porous and charged with moisture, making them a magnet for several species of bryophytes in an otherwise hostile environment. Ozobryum underscores the fact that discoveries can still be made in areas of the country where bryophytes are poorly known.	View image Go to the article The moss Leucolepis acanthoneuron.
View image Go to the article The liverwort Asterella echinella.	View image Go to the article Scleria cilata, a member of the sedge family, Cyperaceae.	View image Go to the article The fern Ctenitis submarginalis.
View image Go to the article The fern Cyrtomium falcatum.	View image Go to the article Bouteloua gracilis, a member of the grass family, Poaceae (Gramineae).	View image Go to the article The fern Polystichum lonchitis.
View image Go to the article The fern Pityrogramma trifoliata.	View image Go to the article The fern Acrostichum danaeifolium.
View image Go to the article The fern Pityrogramma vittata.
View image Go to the article The fern Phanerophlebia auriculata.
View image Go to the article The fern Ctenitis sloanei.
View image Go to the article Fabaceae (Leguminosae), Baptisa australis, a member of the legume family.
View image Go to the article Spreading globeflower (Trollius laxus Salisbury), a threatened species in New York.	View image Go to the article Picea sitchensis, a member of the pine family, Pinaceae.	View image Go to the article
View image Go to the article Fig. 2. Healthy whitebark pine stand in Yellowstone National Park not yet affected by the introduced disease, white pine blister rust.	View image Go to the article Fig. 3. Dead whitebark pine trees in Glacier National Park.	View image Go to the article Oak savanna.
View image Go to the article Colorado River study site with willow (note stress-induced canopy die back) and exotic tamarisk.	View image Go to the article Purple loosestrife (Lythrum salicaria).	View image Go to the article Haleakala silversword (Argyroxiphium sandwicense ssp. macrocephalum).
View image Go to the article Small unnamed bay near Bete Grise, Lake Superior, August 1991. Scattered lilies (Nuphar variegata) with submersed plants adjacent to a floating bog mat.	View image Go to the article Figure. Schematic cross-sections depicting the structural habitat provided by plant communities characteristic of regulated Lakes Superior and Ontario. Elevations at which vegetation sampling was conducted are shown beneath each cross-section (benchmark: International Great Lakes Datum 1955).	View image Go to the article Examples of diatoms (top to bottom): Aulacoseira sp., Tabellaria sp., Gomphonema sp., and Stephananodiscus sp.
View image Go to the article	View image Go to the article	View image Go to the article

Plants

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Fig. 1. Entoloma salmoneum. The salmon-colored entoloma is a common recycler of forest litter in North American forests.

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Fig. 2. Mycorrhizae formed between ponderosa pine and Laccaria laccata in the laboratory. Note the branched pine roots and threadlike fungal hyphae.

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Fig. 3. Cantharellus cibarius. The chanterelle is one of the important fungi forming mycorrhizae with pines and oaks in North American forests.

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Fig. 1. Cladina mitis and C. rangiferina (reindeer moss), Voyageurs National Park, MN.

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The newly discovered moss genus and species, Ozobryum ogalalense, is known only from four localities in northwest Kansas and adjacent Nebraska (Merrill 1992). The species forms soft, compact cushions on exposed lime-rich outcrops in native prairie pastures. The outcrops are porous and charged with moisture, making them a magnet for several species of bryophytes in an otherwise hostile environment. Ozobryum underscores the fact that discoveries can still be made in areas of the country where bryophytes are poorly known.

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The moss Leucolepis acanthoneuron.

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The liverwort Asterella echinella.

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Scleria cilata, a member of the sedge family, Cyperaceae.

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The fern Ctenitis submarginalis.

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The fern Cyrtomium falcatum.

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Bouteloua gracilis, a member of the grass family, Poaceae (Gramineae).

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The fern Polystichum lonchitis.

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The fern Pityrogramma trifoliata.

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The fern Acrostichum danaeifolium.

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The fern Pityrogramma vittata.

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The fern Phanerophlebia auriculata.

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The fern Ctenitis sloanei.

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Fabaceae (Leguminosae), Baptisa australis, a member of the legume family.

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Spreading globeflower (Trollius laxus Salisbury), a threatened species in New York.

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Picea sitchensis, a member of the pine family, Pinaceae.

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Fig. 2. Healthy whitebark pine stand in Yellowstone National Park not yet affected by the introduced disease, white pine blister rust.

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Fig. 3. Dead whitebark pine trees in Glacier National Park.

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Oak savanna.

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Colorado River study site with willow (note stress-induced canopy die back) and exotic tamarisk.

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Purple loosestrife (Lythrum salicaria).

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Haleakala silversword (Argyroxiphium sandwicense ssp. macrocephalum).

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Small unnamed bay near Bete Grise, Lake Superior, August 1991. Scattered lilies (Nuphar variegata) with submersed plants adjacent to a floating bog mat.

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Figure. Schematic cross-sections depicting the structural habitat provided by plant communities characteristic of regulated Lakes Superior and Ontario. Elevations at which vegetation sampling was conducted are shown beneath each cross-section (benchmark: International Great Lakes Datum 1955).

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Examples of diatoms (top to
bottom): Aulacoseira sp., Tabellaria sp., Gomphonema sp., and Stephananodiscus sp.

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