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On fairly dry, rather sunny outcrop in open Quercus savannah with Acer macrophyllum and Alnus riverine corridor in deep canyon of Klamath River, 1 mile west of Ash Creek Bridge on Hwy. 96 west of Hwy 5, Klamath National Forest north of Yreka,

On moist, rather sunny boulder in open Quercus forest with Calocedrus decurrens along Underwood Mountain road about one mile south of Burnt Ranch, east of Willow Creek. Trinity National Forest,

On dry, sunny soil in greasewood desert near El Mexquital along Pachuca to Mexico City Highway.

On moist, diffusely lit rock outcrop in area of open meadows with scattered Pinus contorta and Abies lasiocarpa along upper reaches of Mt. Townsend Trail, Buckhorn Wilderness of Olympic National Forest.

On moist, diffusely lit soil in very wet area with Carex spp. in area of open meadows with scattered Pinus contorta and Abies lasiocarpa along upper reaches of Mt. Townsend Trail, Buckhorn Wilderness of Olympic National Forest.

On moist, diffusely lit organic soil in forest of Abies lasiocarpa, Pseudotsuga menziesii, and Tsuga heterophylla on steep slopes above end of Forest Service Road 2820 about 1 mile northeast of peak of Mt. Townsend, Olympic National Forest.

On moist, diffusely lit log in old growth forest of Tsuga heterophylla, Abies grandis and Pseudotsuga menziesii at end of US Forest Service Road 2877 on headwaters of McDonald Creek, Olympic National Forest.

On moist, rather shaded bark of Acer circinatum in rather old-growth fragmentary forest of Pseudotsuga menziesii, and Tsuga heterophylla on very steep slopes above Forest Service Road 2341 at headwaters of Vee Creek along southern regions of Olympic Natio

On moist, diffusely lit vertical face of tall cliff in very steep ravine with moderately closed forest of Sequoiadendron giganteum, Abies concolor, Pinus lambertiana, Quercus kelloggii, and Libocedrus decurrens along Redwood Creek below Road 13S05C at Win

On moist, diffusely lit large outcrop in low black spruce forest and surrounding muskeg along McManus Creek at Faith Creek.

On temporarily moist, rather sunny outcrop in ridgetop forest of Pinus contorta and Pseudotsuga menziesii along Deer Ridge Trail in Buckhorn Wilderness near boundary with Olympic National Park, south of Sequim, Olympic National Forest.

On fairly moist, diffusely lit boulder in open Quercus forest along upper reaches of Big Chico Creek at northeast boundary of Bidwell Park.

On moist, diffusely lit soil in second-growth Pseudotsuga forest along road at bridge across Middle Fork of the Snoqualmie River immediately east of North Bend Station of Mt. Baker-Snoqualmie National Forest.

On fairly dry, sunny rock outcrop on granitic hills with desert scrub near Snakeye Springs, Indian Cove, Joshua Tree National Monument.

On dry, sunny rock outcrop in valley grassland over sandy clay soils along Round Mountain Road near Pozo Creek Bridge,

On moist, shaded rocks in stream bed in alpine tundra with scattered krummholz of Pinus albicaulis on upper, north-facing granitic slopes above George Lake (west of Bishop), John Muir Wilderness, Inyo Natl. Forest.

On moist, shaded rocks in spray of small falls along Griffin Creek at Smith River at milepost 30.57 on Hwy. 19 east of Gasquet.

On moist, diffusely lit rock in Quercus forest on steep north-facing slope near extreme top of ridge along Hwy. 40 about 18 miles west of La Ciudad near border between Durango and Sinaloa.

On moist, shaded rotten stump in epiphyte-drenched forest of Quercus at KM 105 of Oaxaca to Tuxtepec highway about 5 KM northeast of El Mirador (last pass before steep descent of highway to Valle Nacional).

Channel Islands: Santa Cruz Island. Christy Pines. Drainage through Pinus muricata forest.

Channel Islands: Santa Cruz Island. Along road to Willows Anchorage.

Channel Islands: Santa Cruz Island. Canada del Puerto between Prisoner s Harbor and UC Field Station

Channel Islands: San Clemente Island. Small grove of ca. 30 individuals of Quercus tomentella at top of eastern escarpment, just below and west of ridgeline.

Channel Islands: Santa Catalina Island. Road from Blackjack campground to Cottonwood canyon.

Santa Monica Mountains; National Park Service property known as Circle X Ranch, Carlisle Canyon, outcropping along Carlisle Creek above junction of Mishe Mokwa Trail and Carlisle Creek at Split Rock.

On moist, diffusely lit outcrop in open forest of Pseudotsuga, Arbutus, and Lithocarpus along Hwy. 96 about 4 miles north of Willow Creek.

On moist, diffusely lit thin soil among rocks in talus in Abies lasiocarpa and Tsuga mertensiana forest with open sedge meadows near small lake about 1 mile SSW of Mt. Dana, Olympic National Park.

On moist, rather sunny boulder along trail in Sequoiadendron forest along Kaweah River (east fork) near Atwell Mills Campground west of Mineral King, Sequoia National Park.

On moist, diffusely lit soil in moose trail in black spruce muskeg along South Fork of Caribou Creek west of C-3 streamflow station.

In moist, intensely shaded recess under boulder on basaltic cliffs and adjacent moors on Beinn nah Uamha north of Loch Arienas.

On seasonally moist, sunny rock outcrop in area of annual grasses at base of Opuntia near Cottonwood Springs, Granite Mountains north of Hwy. 40.

On submerged, diffusely lit boulder in outlet stream of lake in nearly virgin forest of Tsuga and Thuja at Heather Lake south of Verlot, Mount Baker-Snoqualmie National Forest,

On moderate slopes of the watershed of the Quebrada Verde in the Cordillera de Tilarán in the nectandra Gardens about 15 km north of San Ramon in San Ramon Canton, Angeles District.

Rhode Island

Svalbard

Hazelwood bog, 2-3 mi W of Nederland

On moist, diffusely lit thin soil over serpentine outcrop in Quercus chrysolepis and Pseudotsuga forest with dense understory of Arctostaphylos along Myrtle Creek at Smith River.

On moist, diffusely lit soil at base of boulder on open south slope with Quercus spp., Calocedrus and Arbutus about one mile west of Seiad Valley.

On moist, diffusely lit bark of Salix in bog with Carex, Menyanthes and Angelica along highway 101 at Inglenook Fen north of Fort Bragg.

On moist, diffusely lit bark of Salix overhanging stream at Seal Rock State Wayside north of Waldport.

On moist, diffusely lit soil in Calocedrus, Pseudotsuga, and Quercus chrysolepis forest in canyon along small stream, Flume Gulch near Forest Glen, Six Rivers National Forest.

On moist, diffusely lit boulder in +open Quercus forest along New River between Denny and Mills Creek.

On moist, diffusely lit cut end of log in very rich boulder-strewn forest of Tsuga, Thuja, and Pseudotsuga along Oak Grove Fork of the Clackamas River near intersection with Skunk Creek, Mt. Hood National Forest.

On moist, diffusely lit vertical lava cliff in open Juniperus forest on lava rim rock at Page Creek Campground, Malheur National Wildlife Refuge.

On fairly moist, diffusely lit trunk of palm in park with planted trees in City Square of Gridley.

On moist, diffusely lit rocks in canyon in Pinus sabiniana, and Quercus chrysolepis forest along Hwy. 299 about one mile east of Big Bar.

On temporarily moist, sunny soil along stream in open Quercus agrifolia forest along canyon of South Fork of San Jacinto River about 7 miles east of Hemet.

On dry, sunny granite outcrop in Pseudotsuga, Pinus lambertiana, Pinus ponderosa and Calocedrus forest at Frazer Flat Campground along Tuolumne River off Hwy 108 between Sonora Pass and Sonora. Stanislaus National Forest.

On fairly moist, diffusely lit boulder in deep canyon with Purshia and Artemisia and scattered Juniperus about 18 miles northeast of Litchfield on Highway 395 (milepost 94.6).

On moist, diffusely lit andesite boulder along trail in heavily landslide-influenced mixed forest and on surrounding talus slopes on north-facing slopes above Perry Creek about 1-2 miles west of Perry Creek Campground on Mountain Loop Highway, Mt. Baker-S