NC, Smokies, 20060712
CabinCove, TT, mostly lichens.

Amanita virosa []
Just leaving button stage. In parking lot right at entrance to Tigger's Trot.
Cantharellus minor? []
Scattering of several small ones; to left of first switchback of Tigger's Trot.
Clavaria vermicularis []
At edge of lawn right by entrance to Tigger's Trot.
Oxalis stricta []
Finally found one with more than two flowers. Yes, in fact, they are cymose, not umbellate. Hairs are supposed to be septate (according to Wofford), but that's a really subtle feature at best.
Perfect specimen, forget from where, but it's common in our fields and lawns.

Phylloporus rhodoxanthus []
On Tigger's Trot at top of that first long steep slope (and a little past near the transplanted whorled pogonias).
| | GEN | | med mushroom, under hardwoods |
| | ST | | 50x8-11mm, curved up because it hit a rock(!), stiff yellowish base w fine scattering of brownish specks and splatters, finely fibrillose texture becoming downright min sulfur-velvety at base, brittle, solid, tough, fibrous, deep watery yell inside |
| | CAP | | 50mm, convex to almost flat, tan-brown, granular-mealy-scurfy, fairly even and smooth |
| | FLESH | | 7mm thick, firm but spongy, bolete-like, creamy |
| | GILL | | 5mm long, brilliant deep yellow, sl more than 1 per mm, v decur, straight, unbr, uneven marg, forked much near marg, not bruising |
| | SPORE | | pale yellow, sticking irreg, colorless, smooth, narr ellip, irreg, 1 cell, min apic, 10-11x3-4um |
These were on a fallen oak limb near bottom of TT.
Buellia stillingiana []
| | GEN | | crust lichen, on hardwood bark |
| | THAL | | grey, verruculose, dirty, conspic black prothallus, K+ yell, C-, KC- |
| | MED | | orange to red, K-?, C- |
| | APO | | black, marg raised black and smooth, marg K+ yell turning red (norstictic acid can see crystals), hymen v dark |
| | SPORE | | 15x8-9um, brown, ellip, sl constrict at sept, even thin walls, 8 per ascus? |
No mention of the colored medulla (might just be stained
it's a ratty old specimen), and should not have black prothallus, but everything else is right on, and keys well.
| | GEN | | crustose lichen, on hardwood bark |
| | THAL | | inside bark to thinly verrucose dk greenish-brownish |
| | APO | | lecanorine, 0.8mm wide, flat, sl yellish bright orange, alg on bottom but not in rim, rim thin and sl raised and same color, rough-shiny, scattered to somewhat crowded, orange pigment K+ deep red |
| | ASC | | thickened tip V, shaped inside (thickening fairly uniform) |
| | SPORE | | colorless, smooth, ellip, 2 cell, 8 per ascus, polarilocular, 11-12x5-6um, septum 3-3.5um wide |
Perfect match.
Lecanora caesiorubella caesiorubella [] [voucher]
| | GEN | | crust lichen, on hardwood bark |
| | THAL | | white, v rimose, K+ weak yell, C-, KC- to orange in a few spots(?) |
| | APO | | lecanorine, to 0.7mm, thin disappearing white marg (no cortex), d white pruinose disk, no obvious crystals in amph, hymen v colorless and shallow, K turns a few tiny spots in the amph v brief yell, C-, KC+ diffuse brownish yellish orangish tint |
| | SPORE | | 12x6-7um, colorless, smooth, ellip, 2 oil drops in either end, 1 cell?, 8 per ascus |
| | PARA | | minute, brownish tips, d granular at v tips |
| | GEN | | crust lichen, on hardwood bark |
| | THAL | | grey, rimose-verruculose, K+ distinct yell, KC-, C- |
| | APO | | lecanorine, to 0.4mm, lt pinkish reddish brown with greenish border, marg conspic and sl bumpy, some large (10-20um or even more) angular clear conspic crystals in amphithecium |
| | SPORE | | colorless, smooth, ellip, about 10-12x7um, 8 per ascus |
| | PARA | | sl enlarged tips, unbr, yell-brown pigment in upper third, granular throughout |
First time I've been confident about seeing those derned crystals and maye even granules.

| | GEN | | crust lichen, on hardwood bark |
| | THAL | | grey, white to blackish dirty, v verruculose, K+ v yell, C-, KC- |
| | APO | | lecanorine, to 1mm, rather dense, snow white fairly wrinkled rims, with cortex, disks pale reddish brown to bleached colorless, hymen colorless, epi dk to reddish brown, amph w a few large irreg crystals, rim K+ v yell, epi K+ yell, C- |
| | SPORE | | colorless, smooth, ellip, 11-12x4-5um, 8 per ascus |
Looks different from
L. hybocarpa. Only other species it keys to is
L. rugosella, but there is very little description. It
is distinctly verruculose, but it is not pruinose.
| | GEN | | crust lichen, on hardwood bark |
| | THAL | | powdery-granular pale green, verruculose, K+ yell? (turns dker green than with C), KC?, C- |
| | APO | | lecanorine, marg irreg and bumpy and powdery like thallus, disk pale brown, not pruinose, hymen colorless, section turning diffusely KC+ yell (maybe even sl K+ yellish) |
| | SPORE | | colorless, smooth, oblong, somewhat bent, 1 cell, 10-12x2.5-3um, many per ascus? |
| | PARA | | thickish, not expanded at tip, br'd at tip |

| | GEN | | crustose lichen, on bark |
| | THAL | | pale grey to green (cortex v thin showing much of algal layer), smooth to verruculose, K-, C-, KC+ weakly orange-yell |
| | MED | | white, K+ v weakly yell, C-, KC- or orange-yell |
| | APO | | buried 1 or more in smooth sloping-sided warts, disk reddish brown |
| | SPORE | | 2 per ascus, colorless, ellip-oblong, up to 100x40um, two walls, outer wall 5um or so, inner 2-3um or so, walls min roughened, all parts evenly finely textured, mature ones with weakly wrinkled or transversely rugose appearance, pore at one end and/or squared off inside at ends (seems variable) |
Seems clea, but
Brodo claims it doesn't belong in the mountains. Found several asci with two spores each totally filling them, so that is reliable. The walls are def roughened. There is def some sort of KC+ orange, although the other reactions (C in cortex and K in medulla) are weak at best
never did get a C+ yell reaction anywhere.
Physcia pumilior []
| | GEN | | foliose lichen, on hardwood bark |
| | THAL | | v pale grey, flat, v fine (0.2-0.3mm wide), flat, small rosette, even color to sl granular or bumpy, no cilia but some pale short sharp rhiz protruding, white bel, K+ yell, C- |
| | MED | | white, K+ yell near marg (but negative where too much medulla has been scraped away making it very difficult to get a positive reaction), C-, KC- |
| | APO | | one present, raised, deep red-brown, 0.3mm wide, smooth thin marg, v constrict bel to cup-like |
| | SPORE | | smooth, ellip, lt greenish brownish, 2 cell, small angular locules (inverted V shape in middle half of locules), 8 per ascus, 12-13x5-7um |
Very good match except for ambiguous medulla K reaction, but
Brodo mentions that it is difficult to obtain.

| | GEN | | foliose lichen, on hardwood bark |
| | THAL | | bright yellow to sl greenish esp tips, smooth, even, sl convex, tips upturned a bit, a few pale rhiz present, no visible soredia, lobes narr and finely lobed, forming rosette, cylindrical orange pycnidia scattered on surface, K+ deep red |
Despite lack of soredia it can only be the one species (also the only one listed in our area).
On sumac bark all over.
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