AZ, Sonoran Desert, 20060402
Tucson, Pontatoc Ridge, mostly ferns. 

Pontatoc Ridge Trail in Santa Catalina Mts.

Chamaesyce melanadenia 

GEN

mounded, pinkish, peren?, small, in full sun on ridge

ST

tom

LF

stip   lin thread, sep

INFL

term and some axil near tip

FL

invol   bell, ~2mm, tom gland   red-black app   white, 1mm, wider than gland, somewhat scalloped

FR

tom, 2mm, ov

SEED

4-angled, white, smooth

Notholaena standleyi 

LF

pentagonal, glab ab, v d sulfur yell farinose bel, 3 lflts, term lflt pin to pinfid, lat lflts pin to pinfif w basiscopic basal lobes further pinfid looking like 4th and 5th lflts

SOR

near marg

Assumed this was Pityrogramma without paying attention to sori; caught it two days later.

Cheilanthes wrightii? 

GEN

small, scattered

ST

reddish brown, grooved, some narr lt brown scales

LF

3-pin to 2-pin-pinfid, oblong, 35x10-15mm? (rolled up so hard to measure), glab, flat, green, delicate

Another of the same:

ST

grooved, glabresc, scales brown

LF

3-pin-pinfid, segs lance, glabq, edge tightly rolled under to act as indusium, 70x30mm

Notholaena sinuata sinuata 

Pellaea truncata 

ST

red-brown, grooved ab

LF

lance-oblong, widest near base, 2-pin or tern-pin lflt   glab to 11x8mm, ellip, obtuse base, mucron tip, whitish ragged edge, flat

Should be more 2-pin, but I don't think it is the other one which is strictly tern-pin, as this does have some larger lflts.

Another:

LF

v 2-pin, lflt more pt'd and more trunc, margins tightly underrolled to act as indusium

I'm calling these the same.

Cheilanthes lindheimeri [voucher] 

ST

red-brown, terete, narr and 1mm wide long lt scales and hairs

LF

lance-oblong, 3-4-pin segs   < 1mm, bead-like obtuse base, vill ab, glab bel, scales d and wide to hair-like (looks v tangled brownish vill) bel, lflt underrolled protectinf marginal sporangia scales   lance, white-brown to dk red-brown at base

 

Photos:

Acarospora contigua? 

Pleopsidium flavum 

Xanthoparmelia 

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