Lichens of the Santa Rosa Plateau Found On Rocks

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Identification Notes

Fruticose

1SPILONEMA revertensrock hairball lichenx  on horizontal flow lines near plateau tops; small patches or cushions 5-15 mm across consisting of reddish brown to black (greenish black when wet), spiny, filamentous branches; apothecia uncommon, 0.2-0.5 mm diameter, buried among the branches

Squamulose

2PELTULA euplocapowdery rock-olivex  on horizontal flow lines near plateau tops; clearly umbilicate; squamules 1.5-3(10) mm diameter
3PSORA sp. indet.(scale)  ibrown with central convex fruiting body; attached by hairy tomentum

Foliose

4FLAVOPARMELIA caperatacommon greenshield lichenc  pale yellow-green when dry; greener when wet, lower surface black, upper surface often strongly wrinkled in older parts, lobes rounded, 3-8 mm wide; granular soredia present
5FLAVOPUNCTELIA flaventiorspeckled greenshieldx  yellow-green with white spots on lobes; lower surface black, with a brown edge; lobes rounded, 4-8 mm wide; soredia on margins and upper lobe surface; not supposed to be on anything other than trees!
6NEOFUSCELIA subhosseanaerupted camouflage lichen xiyellowish-brown to reddish-brown, lobes 1-3 mm wide, with ~0.2 mm disintegrating isidia pustules; lower surface black to pale brown; soredia absent, but schidizia present
7PHYSCIA callosabeaded rosette lichenc  clear, almost shiny, uniform gray to almost white, with no white spots; lobes downturned, 0.4-2 mm wide, becoming divided into lobules at tips; lower surface white to pale tan with abundant pale rhizines; soredia on undersides and margins of lobe tips.
8UMBILICARIA phaeaEmery rock tripe  csmooth, shiny, brown, unlobed, brittle; lower surface pale, rough and papillate, umbilicate (mostly without rhizines); apothecia (disk-shaped fruiting body) common, black, partially embeded, small, angular to star shaped, in concentric circles; to 6 cm across
 XANTHOPARMELIA(rock-shield)   yellow-green, lobes mostly 0.5-4 mm wide; lower surface pale brown to ebony black, rhizines unbranched or forked, usually abundant; soredia usually absent, but often with cylindric or globose isidia
9XANTHOPARMELIA coloradoensis(rock-shield) x like X. lineola, but loosely attached with some overlapping lobes.
10XANTHOPARMELIA conspersapeppered rock-shield  cshiny, browned at margins; lobes narrow, 1-3 mm wide, crowded and often overlapping, with sparse to dense cylindrical isidia on upper surface; lower surface pitch black except for a pale to dark brown area close to lobe tips, closely to loosely attached; fruiting bodies rare
11XANTHOPARMELIA lineolatight rock-shield  cdull, often darkening on older parts, forming large, closely attached patches; thick rounded or irregular contiguous lobes 0.8-3(5) mm wide, sometimes crowded or overlapping, without isidia or soredia; lower surface pale brown, often wrinkled and cracked, with pale rhizines; fruiting bodies common, ~raised, 2-5 mm diameter.
12XANTHOPARMELIA mexicanasalted rock-shield x often shiny at lobe tips; lobes rounded, 1.5-5 mm wide, with dense, globose isidia that ~become cylindrical and branched; lower surface pale brown or smoky gray-brown at margins, closely to loosely attached; fruiting bodies rare.

Crustose

13ACAROSPORA fuscatabrown cobblestone lichenx coften shiny, yellowish-brown to deep reddish-brown, broken into tiles, tiles often becoming slightly lifted at the edges and becoming squamulose, dispersed or continuous, 0.5-2(3) mm wide, gen with 1-5 darker brown, irregular disks of immersed fruiting bodies in the centers
14ACAROSPORA schleicherisoil paint lichen  cpale to bright sulphur yellow, sometimes pruinose, squamulose-areolate, often lobed at margins, with large red-brown, sometimes scabrous, embedded fruiting bodies; only on soil??
15AMANDINEA punctatatiny button lichen  cgray to brownish, green when wet; thin and barely perceptible to moderately thick, cracked or areolate; fruiting body 0.2-0.5 mm in diameter, with a thin black margin often disappearing in maturity
16ASPICILIA cf. americana(sunken disk lichen) x large, thin, dull-greenish-gray with flat to concave areoles
17ASPICILIA cf. gibbosa(sunken disk lichen)cx gray-green
18BUELLIA badia(button lichen)  istrongly ascending and clumped squamules; white, gray, brown or yellowish; fruiting body with rim same color as disk
 CALOPLACA(firedot lichen)   bright orange or yellow orange in either thallus or fruiting body; apothecia margins usually rimmed with a different color
19CALOPLACA decipiens(firedot lichen)r  produces piles of granular, orange soredia at the tips of overlapping lobes in older parts of the thallus
20CALOPLACA demissa(firedot lichen) r 
21CALOPLACA saxicola(firedot lichen)  corange to yellow-orange, with convex, scabrose lobes; apothecia orange with paler, yellow margins
22CALOPLACA subsoluta(firedot lichen) c 
23CANDELARIELLA vitellinacommon goldspeck lichen c bright yellow little cushions of flattened granules, very slightly crenulate at edges sometimes, or just scattered yellow areoles; apothecia 0.5-1.5 mm diameter, often crowded
24DIMELAENA oreinagolden moonglow lichen r greenish yellow, sometimes blackening at edges of lobes or areoles; areoles 0.3-1 mm diameter; lobes, when present, mostly 0.5-1 mm wide, 1-3 mm long; apothecia black, level with thallus surface, often with a thalline margin or just embedded in thallus
25DIMELAENA radiatasilver moonglow lichen r milky white to brownish gray, usually heavily pruinose, or pale yellow brown if not pruinose; apothecia immersed to sessile, black, often wrinkled
26DIPLOSCHISTES actinostomus(crater lichen)x  gray; fruiting body with rim different color than disk
27DIPLOSCHISTES scruposuscrater lichen  calmost white or greenish-gray, thick, verrucose or areolate, without pruina; fruiting body black, crater-like, 0.5-1.5(3) mm diameter, embedded, with rim different color than disk, often with a double margin
 LECANORA(rim-lichen)   yellowish, gray, brown or greenish, often sorediate; fruiting body with rim different color than disk, often pruinose
28 LECANORA gangaleoides(rim-lichen)r  apothecia black
29 LECANORA mellea(rim-lichen) i honey-brown, often shiny; apothecia without pruina but rarely seen
30 LECANORA muralisstonewall rim-lichen  xlight yellowish-green, waxy, with little or no pruina; areolate in center of thallus, becoming lobed at margins, sometimes squamulose; marginal lobes very flat, closely appressed, 0.3-0.6 mm wide; apothecia yellow- to red-brown, not pruinose, with ~thick thallus-colored margins
31 LECANORA scotopholis(rim-lichen)ccc
32 LECIDEA fuscoatra(tile lichen)i  pale brown to gray brown areoles, (thick rimose to areolate or squamulose to almost lobate, or almost hidden within the substrate; with black to dark brown, superficial to sunken, lecidiene apothecia usually rimmed with disk-colored margins)
33 LECIDEA tessellatatile lichen  ichalky white to blue-gray, forming round patches of well-defined, tile-like areoles bordered by a conspicuous charcoal gray to black prothallus; apothecia black, sunken between the areoles, or prominent
34LECIDELLA carpathica(disk lichen)  iwhite, areolate to verrucose; (apothecia lecidiene, pitch black and often shiny, with black margins)
35#LICHENOTHELIA scopularia  ccdark stain; fruiting body with rim same color as disk
36THELOMMA mammosumrock nipple lichenxc thick, pale gray to dark yellowish gray, areolate to verrucose; fertile verrucae smooth, shaped like volcanoes or nipples, 0.8-1.6 mm diameter; fruiting body circular, flat open center, black-powdery to the touch, raised on a stalk; no hymenium)
37TRAPELIA involutapebble lichen   on soft periodically-wetted rocks in road cut; pale gray-green, sometimes pinkish brown in part, at first consisting of small, dispersed or contiguous areoles, often somewhat lobes at edge, without soredia or isidia; apothecia dark red-brown to almost black, 0.4-0.7(1.0) diameter, marginless or often with a thin, thallus-colored, ragged margin, sometimes appearing as two margins

http://tchester.org/srp/plants/list/lichens_rocks.html
Last update: 3 November 2004