PART 1
PART 1
PART 1
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11. Isidia cylindrical .............................................................................................................. 12<br />
12. Isidia common, often obpyriform, constricted at base<br />
and broadest just above base; atranorin and parvifoliin;<br />
ascospores 6.5-10 × 2.5-3.5 µm; south to<br />
Sarasota County .................................................... P. corallina var. rappiana Brako<br />
12. Isidia rare, cylindrical; squamules mostly with marginal<br />
proliferations; no substances; seen by me only from<br />
South Carolina........................................[P. corallina (Eschw.) Müll. Arg. var. corallina]<br />
11. Isidia nearly globose or irregular, not much elongated or weakly<br />
elongated by buddiing; no substances; ascospores 6.5-12.5<br />
× 2-3.5 µm; Louisiana and Oklahoma, not yet known from<br />
Florida ....................................................................................................... [P. kalbii Brako]<br />
10. Squamules/areoles minute, ca. 0.1 mm wide; isidia long,<br />
cylindrical, tangled; no substances; ascospores<br />
7.5-12.5 × 2-3.5 µm; Leon County .............................................P. isidiolyta (Vainio) Riddle<br />
9. Thallus not isidiate or lobulate; see couplet 5 ................................. [P. parvifolia var. breviuscula]<br />
2. Prothallus dark, abundant ................................................................................................................. 13<br />
13. Squamules minute, inconspicuous; thallus dominated by long<br />
slender isidia; furfuracein; ascospores 6-12 × 2-2.5 µm;<br />
Dade and Seminole Counties ...........................................................P. furfuracea (Pers.) Zahlbr.<br />
13. Squamules/areoles large, tightly adjoined forming an almost<br />
continuous crust, separated by white lines formed by fibrils,<br />
isidiate; isidia sparse, short, cylindrical; atranorin; Louisiana,<br />
not yet known from Florida ........................................................................[P. halei (Tuck.) Zahlbr.]<br />
1. Thallus PD+ orange (argopsin agg. or pannarin) .................................................................................... 14<br />
14. Thallus isidiate, not pruinose (P. corallina (Eschw.) Müll. Arg. s. lat.)............................................... 15<br />
15. Containing argopsin agg. as major substances .......................................................................... 16<br />
16. Lacking phyllopsorins; ascospores 7-13 × 2.5-3 µm;<br />
common, south to Sarasota County........................P. corallina var. santensis (Tuck.) Brako<br />
16. Containiing phyllopsorins; ascospores 6.5-12 × 2.5-3.5 µm;<br />
reported by Brako from Florida without locality (prob. Lake<br />
County) ...............................................................P. corallina var. ochroxantha (Nyl.) Brako<br />
15. Containing vicanicin as major substance with traces of<br />
norvicanicin and argopsin; ascospores 7-11 × 2.5-3 µm;<br />
reported by Brako from Dade and Seminole<br />
counties ........................................................................P. corallina var. glaucella (Vainio) Brako<br />
14. Thallus not isidiate, pruinose; squamules large<br />
(P. buettneri (Müll. Arg.) Zahlbr. s. lat.) ............................................................................................ 17<br />
35