AZ, Colorado Plateau, 20060410
Mogollon Rim, mostly lichens.
FR300 5 miles or so W of 260. Most rock lichens and Pseudevernia from right on rim, the rest inland some way.
Cheilanthes fendleri [voucher]
Under boulders, inland or right next to rim.
| | ST | | reddish brown, scaly| scales | | lt brown w dk brown spot near base, all entire, lance, from hair-like and short to broad and rather long |
|
| | LF | | 3-pin, segs bead-like, lance, v sl rounded base, short acute to long acum tip, completely glab both sides, v d scaly bel| scales | | broad lance, entire, white w brown spot at base, 2x1mm |
edges v tightly revol creating false indusium |
Usnea cavernosa
On conifer inland, rare here.
| | GEN | | v long pend lichen, on conifer twig |
| | THAL | | usnea-cords, few fine black-tipped side brs, no pap or isid or sored, ridged, cortex KC+ yell, C-, K-, medulla 33%, axis 33% |
| | MED | | white, K-, KC-, C-, lax |
Usnea rigida
On conifer bark, inland, rare here.
| | GEN | | bushy tufted lichen, on conifer bark |
| | THAL | | usnea-cords, round, no ridges or isid or sored, lots of pap of varying length some even br'd on rim of apo |
| | APO | | solid lt green like thallus, wide, v d pap on back and edge (less on back) |
If medulla were K+ yell turning red, then it would've been
U. arizonica.
Usnea hirta
On conifer bark all over, abundant.
| | GEN | | bushy to pend lichen, on conifer bark |
| | THAL | | usnea-cords, v isidiate (irreg dispersed not in soralia), mostly terete but some might be ridged |
This one never gives me warm fuzzy feelings...
Dermatocarpon taminium [] [voucher]
| | THAL | | umbilicate, v d white pruinose over brown background, v d min brown dots (pycnidia) w scattered bigger brown dots (perethecia), fairly smooth, med brown bel, smooth but distinctly finely retic-wrinkled bel, not farinose |
Dermatocarpon moulinsii [] [voucher]
| | GEN | | foliose lichen, on sandstone |
| | THAL | | umbilicate, lt grey to med brown, pruinose, thin, barely lobed but cracked showing black through, black bel w stubby pap-like rhiz-like things (some br'd), few black dots ab |
Cladonia chlorophaea?
| | GEN | | fruticose lichen, on soil |
| | THAL | | granular cups and stalks, squamules glab |
Cladonia ochrochlora?
| | GEN | | fruticose lichen, on soil |
| | THAL | | | squamules | | greenm naked, finely lobed at marg |
| podetia | | decorticate in upper 66%, corticate granules in irreg patches over whole surface, few min squamules bel |
|
| | APO | | brown dots to min cups (some reddish) |
Physcia?
| | GEN | | foliose lichen, on moss |
| | THAL | | v appress, lt grey, black spotted, v convex, narr lobes (0.5mm wide or so), K+ yell, no sored or isid, white to lt tan bel, short rhiz, sl pruinose ab |
Rhizoplaca chrysoleuca
Common under rim.
| | GEN | | foliose lichen, on sandstone |
| | THAL | | umbilicate, somewhat lobed, v convex and bunched, grey, K+ yell, KC+ yell, C- |
Lasallia
Fairly rare here.
| | GEN | | foliose lichen, on sandstone |
| | THAL | | rough, lt grey, v d min rimose, K-, C-, KC-, umbilicate, broad lobes (sev cm), v big steep rounded pustules ab (indented bel), smoky med to dk grey bel, v d conic pap rough bel |
| | APO | | many, small, black, v thick raised rough angular marg |
Just doesn't key to species no matter what I try. Pustules are supposed to clinch genus, though.
Umbilicaria hyperborea?
Common.
| | GEN | | foliose lichen, on sandstone |
| | THAL | | umbilicate, brown, smooth, wide and curled under, K-, C-, KC+ black(!), v min and steeply rounded wormy-ridged, ridges crowded and smooth, brown base under ridges, smooth med brown bel (blacker near umbilicus) |
| | MED | | wh, K-, KC- to orange near alg with yell slowly bleeding out, C- to sl red bits here and there near alg |
| | APO | | black, raised, v contorted ridge pattern inside |
Peltigera rufescens
Few.
| | GEN | | foliose lichen, on moss |
| | THAL | | thin, flex, broad upturned wavy lobes, dk grey-black hidden under thick wh tom ab, wh tom bel w network of brown veins and rhiz of tufted tom |
Melanelia olivacea
Abundant.
| | GEN | | foliose lichen, on bark |
| | THAL | | broad, close, thin, olive to brown, smooth to wrinkled inside, tiny wh dots near lobe tips and on apo marg, black pycnidia present, lt brown w sp rhiz all over bel |
| | APO | | rich shiny brown, small to large, v concave, marg rough |
Xanthoparmelia cumberlandia
Abundant.
| | GEN | | foliose lichen, on sandstone |
| | THAL | | moderately appress, yell-green, K+ yell, KC+ yell, smooth to wrinkled in old parts, pale tan bel, no cil, rhiz unbr, black edges ab |
| | MED | | white, K+ yell (does not turn orange or red with time) |
| | APO | | rich shiny brown, lots |
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