PART 1

16. Thallus UV-................................................................................................................................................................................... 18
18. Ascospores 14-19-celled, 55-80 µm long .............................................................................................................................. 19
19. Stictic acid; exciple strongly developed below; ascospores ca. 14-celled,
55 × 8-9 µm; Southwest Florida, Mar 1878, Smith & Austin 91.................................................................. Graphis sp. 91
19. Norstictic acid; exciple barely closed below; ascospores 16-19-celled,
70-80 × 10-11 µm; Louisiana, not yet known from Florida ..................................................[G. lumbricina Vainio s. lat.]
18. Ascospores 8-12-celled, 20-45 µm long ................................................................................................................................ 20
20. Margin carbonized to base of hymenium.......................................................................................................................... 21
21. No substances; ascospores 10-12-celled, 35-45 × 7-9 µm;
Duval and Lake counties....................................................................................................G. striatula (Ach.) Sprengel
21. Stictic acid; ascospores 8-celled, 23-28 × 6-7 µm; Leon County .................................................... Graphis sp. 25050
20. Margin carbonized above, orange below; ascospores 9-10-celled,
25-27 × 6-7 µm often sterile; no substances; Duval and Marion counties ............................................G. subelegans Nyl.
1. Exciple not carbonized; ascospores 2-4-celled .................................................................................................................................... 22
.
22. Ascospores 4-celled; no substances ............................................................................................................................................... 23
23. Lirellae fissurine; exciple not evident.......................................................................................................................................... 24
24. Margin not swollen; ascospores to 17 × 7 µm ....................................................................................................................... 25
25. Thallus white, ecorticate; lirellae not gaping, minute, visible only as
thin lines; ascospores 15-17 × 6-7 µm; Duval and Polk counties.................................................G. illiterata R. C. Harris
25. Thallus greenish, with shiny prosoplectenchymatous cortex;
lirellae gaping; ascospores 11-13 × 5-6 µm; Levy County.................................................... G. subnitidula Nyl. ex Tuck.
24. Margin swollen; ascospores 17-20 × 8-10 µm; Duval, Lake and
Marion counties ......................................................................................................... G. insidiosa (Knight & Mitten) Hook. f.
23. Lirellae long, dichotomously branched; disk hidden to exposed;
exciple orangish, well developed laterally or at base ................................................................................................................. 26
26. Disk not exposed; exciple well developed laterally ............................................................................................................... 27
27. Margin not striate; ascospores 15-17 × 6-8 µm;
Duval and Liberty counties........................................................................................................................G. subparilis Nyl.
27. Margin striate; ascospores 22-24 × 10-13 µm; East Florida, 1877, Smith..................................................G. rufula Mont.
26. Disk exposed; "exciple" well developed below hymenium;
ascospores 10-13 × 5 µm; Collier, Dade and Osceola counties .................................................................G. grammatis Fée
22. Ascospores 2-celled or 8-9-celled ................................................................................................................................................... 28
28. Ascospores 2-celled; norstictic acid; thallus whitish, shiny, UV-; lirellae crowded, initially
with closed ± pruinose lips, later disk exposed, pale, pruinose; Duval County................................................ G. turbulenta Nyl.
28. Ascospores 8-9-celled, 21-31 × 7.5-9 µm; thallus whitish, dull, UV+ yellow (lichexanthone);
lirellae imnersed; disk pale red brown; margin white, patchily developed; Bay, Jefferson and
Lafayette counties ......................................................................................................................................G. anguinoides ined.
NOTES
Graphis "anguinoides" ined.
This species is superficially indistinguishable from Graphina anguina. I had actually placed a couple specimens in this
species on the external characters of ascoma and UV+ thallus. When I checked the ascospores of some recent collections, I
discovered a taxon with transversely septate, not muriform, ascospores. To my mind this is another nail in the coffin of the
ascospore genera, Graphis vs. Graphina. It is inconceivable to me that genera defined on the single character of ascospore
septation should have evolved parallel species with identical multicharacter complexes of thallus and ascoma.
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