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Silver dapples the black pahoehoe, which is tinted with subtle shades of blue and brown. Newly sprouted ferns are among the first plants to colonize fresh pahoehoe; their electric yellows and greens present a striking contrast. (430K JPEG)

The sealing wax palm is named for the brilliant red stalks it sends out, reminiscent of the wax used to seal documents. Intense reds butt up against equally intense greens in the shady tropical light. (307K JPEG)

Arranged like some kind of studio still life, a young o'helo bush sprouts in vivid reds and lime-greens from beneath a boulder of pearly opalescent and gold pahoehoe. Much favored by Pele, o'helo is another early colonizer of Hawai'i's lava flows. (463K JPEG)

A cluster of ferns in greens, reds, oranges, yellows, and browns springs forth from a crevice in the charcoal black pahoehoe from the May 1973 lava flow. (414K JPEG)

Teak roots look almost metallic in their dark brown-black, shiny bark, spotted with green lichens. They sprawl gracefully across the tanbark of the botanical garden. (303K JPEG)

Heliconia blossoms in rosy spikes, hidden in the cool blue-green shadows of the startlingly verdant fronds. The yellow blossoms are nearly hidden in their crimson sheaths. (262K JPEG)

A wild ginger stalk blossoms in sunny yellow with crimson tongues, amid the jade and emerald tones of tropical ferns. (303K JPEG)

Comet Halley glows in cool cyan, set against the backdrop of the Milky Way in the Sagittarius-Scorpio region of the sky. The Milky Way provides a stunning backdrop in smoky blues and browns, sparkling with the fiery nebulae and blue white diamondlike star clusters. The Galactic cente is shrouded in dust, near the upper left corner. (459K JPEG)

Comet Halley displays yellowish dust and blue ion tails that emerge from the turquoise coma. Faint red hydrogen nebulae color the star-dappled background of the Milky Way. (479K JPEG)

Delicate auroral curtains painted in pale lavenders and lime greens glow in a starry sky over the Montana plains. (213K JPEG)

Like some luminescent summer storm, pale green streaks of auroral light fill the skies over the lights of Havre, Montana, which tint the clouds with a sullen brown glow. (229K JPEG)

An auroral mantle glows like mother-of-pearl in subtle oranges and yellows and greens over the city lights. Streaks of jade auroral light look like falling rain. (213K JPEG)

A deep green auroral curtain shimmers with fine folds, bends, and lines of yellow-white luminescence behind the telephone poles. (197K JPEG)

Aurora flares to the sky like some ghostly fire, shaded with oranges, reds, and nacreous whites fringed with green. (193KJPEG)

An intense emerald and azure band of aurora is fringed with violets and reds in a starry sky. (197K JPEG)

A striped auroral curtain hangs in the sky behind the clouds, red-magenta streaks abruptly transitioning to cyan and turquoise. (188K JPEG)

A delicate curtain of light in oranges and pale soft greens hangs in a starry sky over the deep brown fields of Montana. (118K JPEG)

An incandescent river of light, brilliant with yellows and soft greens, appears to weave through the clouds in the starry skies above the telephone poles. (221K JPEG)

Orange, bronze, and lemon light seems to pour from the sky behind the clouds hovering over Havre, Montana. (221K JPEG)

Auroral glow fills the sky with light, luminescent with pinks, yellows, and the most delicate greens, mixed with sweeping streaks of clouds. (197K JPEG)

The eroded landscape of the Petrified Forest is awash with subtle blues, violets, and oranges, accented by the dusky green scrub and the bronze hues of petrified wood logs. (438K JPEG)

Canyon de Chelley glows at sunset. The grazing sunlight tints the landscape brilliant purples, reds, and oranges, set under a clear blue sky. (332K JPEG)

Stalactites and stalagmites shine like sculptures in bronze, weathered to a fine patina with hints of gold and green. (340K JPEG)

The rusty browns, yellows, and brick-reds of these stony columns remind one of ancient castle ramparts. Gray-green scrub in the foreground and the desert's dark blue sky and brilliant white and grey clouds provide chromatic and textural contrast. (254K JPEG)

Barely ten years after the eruption, purple lupine and green scrub begin to grow in a sear tan and gray landscape, with a cool blue-white Mt. Adams hovering in the background. (225K JPEG)

A steamy Mt. St. Helens looms over an eroded brown and green landscape, littered with the pale bare trunks of the trees felled by the monumental explosion. (250K JPEG)

Cold, blue-grey Spirit Lake catches the sun in the midst of a log-littered landscape painted in tans, dark browns, and siennas. Scattered new growth offers small accents in dark greens in this otherwise foreboding landscape. (201K JPEG)

Overlooking the Painted Desert, this cross-bedded sandstone outcrop shines in the midday desert sun with delicate hues of greys, tans, and browns. Bits of yellow-green and gray scrub provide an accent to the ruddy landscape in the background. (422K JPEG)

Mercury streetlamps make the naturally vivid greens of the acacia tree fluoresce with eye-popping emeralds, jades, and incandescent yellows. (426 JPEG)

Green and yellow-orange mosses gain a foothold. Their base of operations is icy blue and lavender granite, striped with ripples of soft indigo and pink. (414 JPEG)

After dusk the dam's spillway catches the twilight sky, picking up tones of purples, pinks, and blues in a marbled pattern. (229K JPEG)

Forest greens and deep cyan sky and water contrast with the soothing greens and tans of the Interstate Bridges that connect Oregon and Washington. (266K JPEG)

The sea-green girderwork of the Interstate Bridges shines brightly in the deep blue summer sky of Portland. (221K JPEG)

Desolate brown and black trees stand, dead and bare skeletons, in front of a ghostlike Mt. St. Helens, rendered in the palest blues and whites. (238K JPEG)

In the light of the setting sun, horsetails glow with almost luminescent shades of yellow-green, as they grow out of the rich brown-maroon mud of the stream bed. (389K JPEG)

Aspens still carry their bright and pale green and yellow leaves, made brilliant by sunlight, as a blanket of new snow dappled with fallen leaves covers the forest ground. (471K JPEG)

Century plants send up yellow and pale green stalks amid blue-grey scrub, emerald and forest-green firs, and pale purple sedge. (479K JPEG)

An extraordinarily clear day at Lake Shasta, when the water levels were extraordinarily low, revealed glowing orange, brown, and tan bands on the banks of the reservoir. The water reflected a near-indigo sky in contrast with dusty cyan light near the horizon, whose color suffuses Mount Lassen in the distance. Green forest completes the pallete of rich colors in this photograph. (422K JPEG)

A cool gray cement wall provides a backdrop for a twisted swordplant, resplendent in shades of dusky green, fringed by pinkish-browns and hints of yellow. (356K JPEG)

A floating, friendly visitor, the seal's forehead is illuminated by just a bit of warm light that contrasts with the cool greens and cyans of the watery world in which it dwells. (258K JPEG)