PART 1

21. Hymenium with abundant oil droplets; ascospores 12-16/ascus;
upper hymenium KOH+ purplish; south to Polk
County............................................................................Hafellia bahiana (Malme) Sheard var. pleiotropa (Malme) Sheard
21. Hymenium without oil droplets; ascospores 24-32/ascus; upper
hymenium KOH-; south to Polk County.....................................................................Amandinea polyspora (Willey) ined.
2. Thallus PD+ orange-red (fumarprotocetraric acid); ascospores 13.5-16.5 × 6.5-7.5 µm;
Franklin, Levy, Liberty, Santa Rosa and Wakulla counties .................................................................... B. rubifaciens R. C. Harris
1. Thallus with yellow soredia (KC+ orange) in punctiform to diffuse, confluent soralia;
ascospore wall strongly ornamented; ascospores 16-19 × 9-11.5 µm; south to Polk County........................ B. wheeleri R. C. Harris
DIRINARIA (Tuck.) Clements
1. Thallus not sorediate, pustulate or isidiate ............................................................................................................................................. 2
2. Apothecial disk with white pruina or pruina lacking ............................................................................................................................ 3
3. Sekikaic acid agg. present; throughout Florida ................................................................................................D. confusa Awasthi
3. Divaricatic acid present; south to Polk County ..................................................................................... D. confluens (Fr.) Awasthi
2. Apothecial disk with purple pruina; divaricatic acid; throughout Florida
......................................................................................................................................................... D. purpurascens (Vainio) Moore
1. Thallus sorediate, pustulate or isidiate ................................................................................................................................................... 4
4. Medulla white....................................................................................................................................................................................... 5
5. Sorediate, pustulate or isidiate-pustulate ....................................................................................................................................... 6
6. Sorediate, soralia mostly orbicular, eroded to capitate; soredia farinose ................................................................................. 7
7. Lobes plane, not confluent, irregularly branched; apices truncate; thalli mostly
smaller than next; divaricatic acid; throughout Florida .................................................. D. picta (Swartz) Clements & Shear
7. Lobes often convex, confluent; apices flabellate;
divaricatic acid; throughout Florida ................................................................................................D. applanata (Fée) Awasthi
6. Pustulate or isidiate-pustulate; divaricatic acid; throughout Florida...................................................D. aegialita (Ach.) Moore
5. Isidiate; isidia subglobose to cylindrical, not forming pustules or soredia
divaricatic acid; Citrus and Okeechobee counties.......................................................................... D. papillulifera (Nyl.) Awasthi
4. Medulla red; divaricatic acid; Levy and Seminole counties....................................................................D. leopoldii (Stein) Awasthi
HAFELLIA Kalb, Mayrhofer & Scheidegger
The treatment follows Sheard (Bryologist 95: 79-87. 1992) although I am somewhat uncomfortable about including Buellia bahaiana
in Hafellia. The three species and one variety known from Florida are included in the key to Buellia above.
HETERODERMIA Trevisan
1. Thallus lobes shorter, not strap-like, mostly closely adnate to substrate............................................................................................... 2
2. Lobes sorediate or isidiate; apothecia rare......................................................................................................................................... 3
3. Sorediate .......................................................................................................................................................................................... 4
4. Underside corticate ...................................................................................................................................................................... 5
5. Salazinic acid and unknown PQ4 present; common, north
of the Everglades.........................................................................................................H. albicans (Pers.) Swinscow & Krog
5. Salazinic acid and unknown PQ4 absent; common, south
to Highlands County ................................................................................................................H. speciosa (Wulfen) Trevisan
4. Underside not corticate ................................................................................................................................................................ 6
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