FL, Keys, 20061219
Buttonwood, sandmats and fungi. 

Did tour of part of marina to island, then returned via weedy side of road. Studying Chamaesyce and making note of where lichens are for future study.

Some good lichen spots:

on dead blolly? in front of F-1 (near soapberry)
on blolly between F and G
in rocks and dead gumbo-limbo stump behind slip #104
on base of palm on terrace above and to left of slip #135
on milkbark in front of D-2

Perfect cyatheum, at 30x.  Note nodding stalked ovary (with 3 stigmas at end), 4 glands with conspicuous white petal-like appendages, and 4 naked stamens (each a separate staminate fl). 

Chamaesyce hypericifolia [] 

Garden above slip #67.  Leaves were much narrower and longer than usual. 
 LF 27x6+1mm, v faintly serr near tips, glab, sl glauc bel
 STIP 1mm or more, red, conspic, min fringed-hairy, joined, delt
 INFL clust, large showy white glands
 FR to 1.5mm, glab, sharp angles

Good view of min branched infl. Close-up of stem hairs, at 30x.  Note that only strigose hairs are present.  (Although I have seen specimens with a few long reddish bristles scattered here and there, possibly hybrids with C. hirta.)Stipule and stem hairs, at 30x.  Note fused stipule. Fruits and glands, at 30x.  Note complete lack of appendages, and sparser, shorter hairs on fruits than C. hirta. 

Chamaesyce ophthalmica [] 

Rocks above slips #67-72.  Only brought back one sample  might some be C. lasiocarpa, too?  Also recorded lasiocarpa-like plants by slips #6/7 and #110 which I need to check. 
 GEN ann, arching erect, one main stem
 ST short white strig, one or two scattered spreading longer yellish bristles
 LF 16x5+1mm, acute, v conspic serr, v oblique
 STIP inconspic, joined, fringed, delt
 INFL two term br'd clusters
glands min, greenish, round
apps none at all
 FR round-ov, 0.7mm or so, sp min strig

Chamaesyce hirta [] 

Frequent in lawns, in particular above slips #64 and lower. 
 ST two types of hairs
 LF serr, acute, hairy
 INFL clust
 FR strig

Two fully mature seeds.  Bit blurry. Close-up of fruit, at 30x.  Note longer, more spreading hairs, less confined to angles than in C. prostrata. Fruit and glands, at 30x.  Note longer, more spreading hairs, less confined to angles than in C. prostrata. Glands, at 30x.  The only species in Buttonwood with consistently scalloped appendages. Stipule and upperside of stem, at 30x.  Note how upper stipules are often poorly-formed. Stipule and underside of stem, at 30x.  Note how lower stipules are typically better-formed. 

Chamaesyce mendezii [] 

In rocks above slip #78.  Some fruits are hairy only on angles, others are uniformly hairy.  Definitely not same as C. prostrata noted below.  But is it C. maculata or C. mendezii? 
 GEN prostrate herb
 ST sev thick semi-fleshy sts radiating from rootstock, conspic dors comp, v long spreading hairy on angles along sides, d min strig ab, glab bel
 LF irreg oblong-ellip, to 10x6+1mm, light green, glab
 STIP joined delt sl lacerate bel to 1mm, highly lacerate ab
 INFL few in many axils
glands broad ellip, greenish
apps min but clearly present under 30x, two-lobed, pinkish
 FR sharply obtuse angled, sp long spreading hairy, some frs hairy all over, some frs only hairy on angles
 SEED brownish, 1mm, sharp angled, faintly trans rugose

Fully mature seed, at 30x.  Beautiful transverse ridging! 

Chamaesyce prostrata [] 

This one from the garden above slip #67, just as comparison with the one above.
 GEN prostrate herb
 ST round, narrower, finely strig ab
 LF glab, dk green ab, sl glauc bel, rounded broad ellip-oblong, entire, 6x4+1mm
 STIP fringed min delt joined bel, inconspic ab
 INFL few in many axils
glands min, ellip, pink
apps v min to non-existent, entire
 FR 1.2mm, ov, v sharp angled, glab but for d min strig right on angles
 SEED reddish, 0.9mm, conspic trans rugose

Chamaesyce [] 

Several obvious large ones are found above slips #61, #52 and #51b.  I'm primarily distinguishing these from C. blodgettii by growth habit  these are distinctly woody at the base at least, and often erect (though sometimes reclining).

Chamaesyce [] 

These appear to be scattered all over, but I'm having trouble distinguishing them from C. mesembrianthemifolia (see above).  Some apparently typical ones are found by slips #81, #135, and opposite the gas pumps over near the 100's.

Phyllanthus tenellus [] 

Over to right of entrance at base of big old fig in waste area.  It was such a big woody plant that I wanted to check it out to be sure. 
 LF only on terminal branches, glab
 INFL long pedicels
 FR glab
 SEED d pap

Psathyrella candolleana [] 

Growing densely scattered on gravel near base of fig to left of entrance.
 GEN med-small mushroom, scattered closely, on ground under ficus
 ST straight, 60x3-4mm, whitish, faint remnant of thin partial veil at 60%, smooth and shiny-silky, bends easily w/o breaking, hollow
 CAP 50mm wide, umbonate, thin and soft, warm brown in center fading to lt tan then darkening to deep brown near marg, finely ragged and striate marg, scattered with mealy particles (made of come sort of cuticle-like material), K+ dker brown, no noticeable bruising
 GILL choc brown, 2-3 per mm, free to deeply notched, unforked, 4mm deep, thin, powdery appearance from dk spores
 SPORE print dk cold brown, ellip, smooth, lt brown, 1 cell, 6-7.5x4-5um
Keys fairly convincingly to Agaricus, as well, but seems too fragile to be one of those.  The K+ brown reaction also seems to be incompatible with A..  P. c., however, works quite well.

Pycnoporus cinnabarinus [] 

Growing on some smooth straight hardwood stick in the leaf litter of the mini-hammock by I-9.  Brilliant orange polypore  unmistakable.

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