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On moist, shaded log in dense rainforest with treeferns at KM 81 of Oaxaca to Tuxtepec highway about 18 KM below El Mirador (last pass before steep descent of highway to Valle Nacional).

On fairly moist, sunny thin soil on lava outcrop in area of largely open aa lava with scattered shrubs and heavy lichen and bryophyte cover at edge of Mt. Washington Wilderness about 1 mile southeast of Sehalie Falls, Willamette Natl. Forest,

On moist, shaded rock in stream 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).

On moist, diffusely lit boulder along stream in old-growth Pseudotsuga forest with Acer macrophyllum corridor on river along East Fork of Willow Creek about 1/2 mile south of East Fork Campground.

On fairly moist, rather shaded boulder in Abies concolor forest along the old Caribou Lakes Trail southwest of Big Flat.

On rather dry, fairly sunny top of voulder on heavily fog-prone ridge with Quercus chrysolepis, Arbutus, and Pseudotsuga on serpentine in old scree area of large boulders along Hennessy Ridge Rd. about one mile west of eastern border of Six Rivers Natl. F

On moist, diffusely lit soil in fairly dry Quercus forest on steep bluff along Hwy 175 about 59 Km north of IxtlÃøΩn de JuÃøΩrez.

On moist, diffusely lit twigs along river 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).

On moist, diffusely lit burned Sequoia stump in virgin Sequoia forest along Hope Creek Trail, Prairie Creek Redwoods State Park.

On moist, shaded log in riverine corridor with Tsuga, Pseudotsuga, Acer, and Alnus along Bear Creek at Hwy. 229 about 6 miles east of intersection with Hwy. 101.

On moist, rather shaded humic soil in wet swale along creek in very rich primary growth mixed conifer forest in area of basaltic outcrops near headwaters of Crabtree Creek,

On moist, sunny soil in grassy alpine tundra on top of Mt. Fougner.

On very moist, diffusely lit boulder along stream in open forest of Pinus flexilis and Pinus contorta with sedgy meadows and Populus tremuloides thickets on slopes between Wrights Lake and Grouse Lake, Desolation Wilderness of El Dorado National Forest.

Ridge between Haelaau and Nakalalua (upper part of trail, north slope of Puu Kukui.

Channel Islands: Santa Catalina Island. Salta Verde Ridge Road just north of road to Bulrush Canyon.

Channel Islands: San Clemente Island. Top of Eagle Canyon (south fork).

Channel Islands: Santa Catalina Island. Near Shark harbor.

Channel Islands: San Clemente Island. Horton Canyon. North facing slope of a steep canyon draining to the east.

Channel Islands: Santa Cruz Island. Below Centinela.

Channel Islands: Santa Cruz Island. Sierra Blanca Ridge.

Channel Islands: Santa Catalina Island. Lower Bullrush Canyon

Channel Islands: Santa Catalina Island. Twin Rocks

Channel Islands: San Clemente Island. Base of Eagle Canyon, ca. 100m from coastline

Channel Islands: Santa Cruz Island. Hooker Canyon between small reservoir and waterfall ( La Cascada )

Channel Islands: Santa Cruz Island. Prisoner s Harbor.

Channel Islands: Santa Catalina Island. Divide Road.

Channel Islands: Santa Catalina Island. Upper Cottonwood Canyon, on south facing slopes several hundred meters below the airport.

Channel Islands: Santa Catalina Island. Along Airport Rd. East of Airport in the Sky.

Channel Islands: Santa Catalina Island. Upper Bulrush Canyon, just below Valley of the Moons.

On moist, diffusely lit root along river in open Quercus forest along Green Gulch near Bear Creek about 2 miles west of Mt. Bullion on road to Hornitos.

On submerged, diffusely lit rocks in stream in mixed conifer forest with scattered alpine meadows along upper watershed of Little Kern River at Lions Meadow (north of Johnsondale). Sequoia National Forest.

On moist, diffusely lit base of Eucalyptus diversicolor in Eucalyptus diversicolor and Eucalyptus marginata forest along Castle Rock Trail in Porongirrup National Park about 27 miles north of Albany.

On moist, sunny steep clay bank of Kankwa Creek in forest of very large Picea sitchensis, Tsuga heterophylla and Thuja plicata along Bogachiel River Trail from Kankwa Creek to Mosquito Creek, Olympic National Park.

On moist, shaded log in Alnus grove in sedge meadows surrounded by Tsuga mertensiana, Pinus contorta, and Abies forest near Todd Lake Parking Lot north of Hwy. 41 west of Bend, Deschutes National Forest.

On seasonally wet, diffusely lit seepage on granite outcrop of river bluff in Calocedrus, Quercus kelloggii, Pseudotsuga, and Pinus jeffreyi forest along Stanislaus River at Board Mill Road near Sourgrass Campground, Stanislaus National Forest.

On moist, rather sunny soil among grasses in mixed conifer forest with scattered alpine meadows along upper watershed of Little Kern River at Lions Meadow (north of Johnsondale).

On moist to submerged, sunny soil in creek in Pinus ponderosa and Pinus contorta forest along Forest Service Road 31 at Sage Hen Creek, Malheur Natl. Forest.

Dominant on rather shaded soil in forest in old-growth Tsuga mertensiana, Abies amabilis and Chamaecyparis nootkatensis on steep, north-facing slopes above Harrison and Karnes Lake on Tunnel Creek Trail, SSW of Quilcene, Olympic National Forest.

On dry, sunny soil in low desert scrub in vicinity of hot springs north of Middle Alkali Lake (northeast of Cedarville). Sec. 11.12, T43N, R16E.

On moist, rather sunny soil in second-growth PseudotsugaÃøΩforest on flood plain of Atnarko River near junction with Young Creek.

On fairly moist, diffusely lit bark of Ulmus on campus of the University of California at Davis.

On dry, sunny soil in Quercus-Juniperus-Pinus sabiniana woodland near Fall River Mills.

On moist, diffusely lit bark of Alnus of river in Sequoia and Picea sitchensis forest along south side of Smith River in Jedediah Smith State Park west of the Hiouchi Bridge.

On seasonally moist, sunny thin soil over outcrop on roadbank in cut-over Sequoia and Pseudotsuga forest at margin of grassland near Kneeland.

On fairly moist, diffusely lit siliceous rock in spray of falls in steep-sided ravine in relatively undisturbed Thuja-Tsuga forest on lower slopes of Four Mile Mountain north of village of Bella Coola.

On submerged, sunny soil in dense mats along rivulet in glacial cirque and outlet valley with scattered Pinus albicaulis at Koenig Lake near Leavitt Lake on east slopes of Sierra Nevada east of Sonora Pass along Hwy. 108. Toiyabe National Forest.

On moist to submerged, sunny rock in stream in mountain meadow with Carex, Salix and various Ericaceae, Lundy Lakes Trail along Mill Creek below Lake Helen. Inyo National Forest.

On fairly moist, diffusely lit granite outcrop along stream in Pinus contorta forest along Pacific Creek at Pacific Valley Campground, Hwy. 4 east of Pacific Grade Summit, Stanislaus National Forest.

On moist, shaded soil of lake shore in Pinus contorta forest with many wet meadows over granite on shores of Dutch Lake (2 miles west of Florence Lake), Sierra National Forest.

On moist, diffusely lit base of Liquidambar in Pinus forest about 2 miles south of Elysian Fields.