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