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On moist, diffusely lit sandy soil at lake head in mixed high elevation conifer forest and adjacent cirque walls along Sugar Creek at Sugar Lake west of Callahan.

On very moist, diffusely lit soil in rivulet in Pseudotsuga, Abies concolor, Calocedrus and Pinus ponderosa forest near Bear Lake, Klamath National Forest.

On moist, shaded rock along stream in old-growth, rich forest of Thuja, Tsuga and Pseudotsuga along U.S. Forest Service Road 1349 at Crescent Creek. Willamette Natl. Forest.

On moist, diffusely lit bark of Quercus in coastal scrub along Domingo Creek at Petrolia Road. Sect. 23, T1S, R3W.

On moist, diffusely lit bark of Acer macrophyllum in virgin Sequoia forest in deep canyon of Emerald Creek, southeast of Orick.

On moist, rather shaded bark of Alnus in Lithocarpus forest along Hwy. 299 about 2 miles west of Lord Ellis Summit (west of Willow Creek). Trinity National Forest.

On moist, intensely shaded rock in recess under granite boulder on open talus slopes and boggy lake margins near Paynes Lake, Klamath National Forest.

On moist, diffusely lit boulder beside stream in Abies concolor forest in moist canyon below Forest Service Road 40S01 along Jaynes Creek to headwaters. Klamath National Forest.

On moist, shaded sandstone outcrop in forest of Picea sitchensis and Alnus rubra along coastal road in Bettendorf Beach County Park, south of Coos Bay.

On moist, shaded soil along stream in very open forest of Calocedrus on barren granitic slopes on headwaters of Oregon Creek north of Trinity Summit Guard Station. Six Rivers National Forest.

On moist, rather shaded organic soil along stream in very open forest of Tsuga mertensiana on talus slopes near South Sugar Lake,

On moist, diffusely lit steep face of outcrop in mixed conifer forest along Granite Creek between Tickner Creek and Blue Granite Lake.

On moist, diffusely lit soil in seepage on open rocky ridge with scattered Picea breweri about 1 mile west of Elk Lick,

On moist, shaded soil in shelter of boulder in alpine fell field with scattered Pinus albicaulis on slopes above Treasure Lake, west of Big Pine.

On moist, sunny soil in cultivated area with lawn grasses along side of tennis courts of Humboldt State University.

On fairly moist, sunny soil among grasses on open grassy slope with Quercus, Aesculus, and Toxicodendron above the Eel River about 3 miles south of Piercy.

On temporarily moist, diffusely lit soil under chaparral in canyon in chaparral with live oaks near Ortega Oaks Campground. Cleveland National Forest.

On dry, sunny siliceous rock in tundra on Tine Hill north of Bella Coola.

in deep, moist ravine in Quercus forest along Hwy. 40 about 6 miles west of Las Palmitas.

On moist, diffusely lit soil on steep, north facing slope above grassy meadow, Round Meadow, about 3 miles southeast of Sayles Canyon Trailhead, El Dorado Natl. Forest,

On dry, sunny top of outcrop in Abies procera and Tsuga mertensiana forest at top of Waucoma Ridge above Lake Wahtum, Mt. Hood National Forest,

On fairly dry, sunny thin soil over boulder in shrub tundra on top of Pedro Dome.

On fairly moist, diffusely lit soil in grassy alpine tundra on top of Mt. Fougner.

On moist, diffusely lit soil in moose trail in black spruce muskeg along Poker Creek near junction of East and West Forks.

On moist, shaded soil of stream bank, In Pseudotsuga and Chamaecyparis forest in deep ravine about 3 miles from Big Flat on the Gasquet-Orleans Rd.

On wet rocks on riverbank along Griffin Creek at Smith River at milepost 30.57 on Hwy. 19 east of Gasquet.

On moist, rather shaded litter on forest floor in old-growth Pseudotsuga-Tsuga-Thuja forest on steep east-facing slopes above Dogwood Picnic Area, Willamette National Forest,

On very moist, diffusely lit boulder along stream in Abies concolor forest in moist canyon below Forest Service Road 40S01 along Jaynes Creek to headwaters. Klamath National forest.

On moist, diffusely lit bark of Quercus in forest with Quercus, Carya and Juniperus along War Eagle Trail in Withrow Springs State Park.

On moist, rather shaded boulder in old-growth Pseudotsuga forest along trail near Mud Lake, Point Reyes National Seashore.

On moist, shaded recess in outcrop on roadcut 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 dry, sunny soil in open Quercus forest with Ceanothus understory along Hwy 53 about one mile south of Hwy. 20.

On very moist, rather shaded trunk of tree in Pinus and Abies forest about 6 miles east of Pulvilla on Hwy. 15.

On moist, shaded bark of tree 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 bark of treein Quercus and Pinus forest along Hwy. 175 about 23 KM north of Ixtlan de Juarez.

On moist, shaded bark of tree 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 temporarily moist, rather sunny boulder in forest of Pseudotsuga, Arbutus, and Quercus chrysolepis on top of ridge along Hwy. 299 about 4 miles west of Weaverville,

On moist, diffusely lit serpentine boulder in 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 rather dry, diffusely lit granite boulder in riverine corridor of Quercus wislizenii and Platanus at Leavis Flat Campground near California Hot Springs (east of Earlimart on Hwy. J22), Sequoia National Forest.

On fairly dry, diffusely lit soil in very open Quercus and Pinus forest with a grassy understory about 60 miles west of Jalapa on road to Puebla.

On fairly moist, diffusely lit soil in Pinus and Juniperus forest along Hwy. 85 about 32 miles south of Jacala.

On temporarily submerged, moist, diffusely lit serpentine outcrop in very open mixed conifer forest on serpentine at junction Red Mountain Road with South Red Mountain Road.

On fairly moist, sunny serpentine boulder in open Pseudotsuga forest over serpentine along Stony Creek about one mile north of junction with Smith River.

On moist, shaded vertical wall of 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, diffusely lit base of tree in dense and moist Quercus forest along Highway 85 about 12 miles south of Jacala.

On moist, rather shaded thin soil over outcrop in open forest of Pseudotsug., Arbutus, and Lithocarpus along Hwy. 96 about 4 miles north of Willow Creek.

On bark of Arctostaphylos in Pinus forest on flat area along Hwy. 40 about 6 miles west of La Ciudad.

On fairly moist, diffusely lit bark of Quercus stellata in open Quercus forest on bank of Proctor Reservoir about 2 miles north of Proctor.

On moist, fairly sunny soil on riverbluff in Picea and Populus tremuloides forest along Wightman Fork east of Stunner Pass.

On moist, shaded boulder in Pinus sabiniana, and Quercus chrysolepis forest along Hwy. 299 about one mile east of Big Bar.