PART 1

14. Ascospores 2-8/ascus...................................................................................................................................................................... 15
15. Exciple carbonized to base of hymenium ................................................................................................................................... 16
16. Exciple not striate ................................................................................................................................................................... 17
17. Exciple covered with thin white layer; salazinic acid; ascospores 8/ascus,
1-2 × 4-5-celled, 12-16 × 5-8 µm; Dade County ................................................................ G. marescens (Fée) Müll. Arg.
17. Exciple naked, black; lirellae elliptical toweakly elongate with broad
red brown disk; ascospores 2-4/ascus, 35-50 × 17-25 µm;
no substances; Lake County..................................................................................................................Graphina sp. 1271
16. Exciple becoming striate, bleeding purplish in KOH; norstictic acid;
ascospores 2-4 × 6-8-celled, 20-35 × 10-15 µm; Dade County......................................................Graphina sp. Britton 680
15. Exciple only carbonized at apices, becoming striate.................................................................................................................. 18
18. Ascospores 2-4/ascus, 30-50 × 20-27 µm; norstictic acid;
exciple carbonized almost to base but inner part yellowish;
Florida, without locality ...............................................................................................G. antillarum (Vainio) Zahlbr.
18. Ascospores 8/ascus, 30-40 × 15-17 µm; stictic acid; Louisiana,
not yet known from Florida ...................................................................................... [G. parilis (Krempelh.) Müll. Arg.]
14. Ascospores 1/ascus ......................................................................................................................................................................... 19
19. No substances; ascospores 65-90 × 20-30 µm; lirellae semi-immersed;
disk narrow, not pruinose; margin black, shiny, not striate, open below;
throughout Florida ................................................................................................................................G. xylophaga R. C. Harris
19. Protocetraric acid; ascospores 120-165 × 35-40 µm; lirellae immersed,
disk broad, whitish pruinose; margin pruinose, often only patchily carbonized;
Collier County ....................................................................................................................................G. platyleuca (Nyl.) Zahlbr.
NOTES
Graphina adscribens Nyl.) Müll. Arg.
I have now examined the type of this species (H-Nyl 6824) and it does not match anything in North America. The Florida
collection in Nylander's herbarium under this name is Graphina scolecitis. Thus Graphina adscribens can be excluded from the
North American mycota with confidence.
Graphina columbina (Tuck.) Wirth & Hale
The lead for this species was inadvertenly omitted from "Some Florida Lichens".
Graphina platyleuca (Nyl.) Zahlbr.
New to North America. FLORIDA. Collier County: Collier-Seminole State Park, just W of boat basin, 25°59'N, 81°35'W,
mangroves at edge of salt marsh, 7 Dec 1992, Harris 30065 (NY).
Graphina subvirginalis (Nyl.) Müll. Arg.
I was badly confused in 1990, mixing two obviously distinct taxa. Graphina subvirginalis has a variable number of
ascospores, 2-8/ascus (type, H-Nyl 6851) and another undescribed species has only 1/ascus. I have not had time to re-examine
material but I presume that Graphina intertexta (Müll. Arg.) R. C. Harris will prove to be a synonym of G. subvirginalis.
GRAPHIS Adanson
1. Exciple carbonized; spores 4-celled only in G. afzelii............................................................................................................................. 2
2. Margin not striate; hymenium inspersed or not ................................................................................................................................... 3
3. Ascomata sessile, covered with thin white layer; exciple well developed below hymenium .......................................................... 4
4. Lirellae C+ red (lecanoric acid); ascospores 4-celled, 16-23 × 6-9 µm;
common, throughout the state .................................................................................................................................G. afzelii Ach.
4. Lirellae and thallus UV+ yellow (lichexanthone), PD+ red (protocetraric acid);
ascospores ca. 22-23-celled, 60-95 × 7-9 µm; Highlands County .....................................................................G. candidata Nyl
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