PART 1

ascospores simple with pointed ends; ascus tip not
pierced by narrow canal ...........................................................................................Mycocalicium
6. Stalk pale, usually of irregularly arranged hyphae
(very short in C. pilosa); ascospores simple or 2-celled,
usually with rounded ends but sometimes as in Mycocalicium;
ascus tip pierced by a narrow canal .................................................................. Chaenothecopsis
5. Growing on the polypore, Trichaptum biforme (Fr.) Ryv.;
ascospores 2-celled, pale, 10-14 × 3-5 µm;
northern Florida .............................................................Phaeocalicium polyporaeum (Nyl.) Tibell
1. Apothecia immersed or sessile, large ...................................................................................................... 7
7. Ascospores 3-4-celled............................................................................................................................ 8
8. Thallus UV+ yellow (lichexanthone); ascoma formed of a lower
perithecioid chamber and upper cup-shaped chamber holding loose
ascopores; ascospores 4-celled...........................................................................................................
............................................... Pyrgillus javanicus (Mont. & v.d. Bosch) Nyl. (See Pyrenulaceae)
8. Thallus UV-; ascoma not 2-chambered; ascospores usually 3-celled,
with middle cell largest; no substances; Seminole County..................................................................
................................................................................. Heterocyphelium leucampyx (Tuck.) Vainio
7. Ascospores 2-celled............................................................................................................................... 9
9. Apothecial margin and thallus C-, KOH+ yellow or red, PD+ orange
(norstictic or stictic acid)................................................................................................................... 10
10. Norstictic acid agg. present; ascospores 13-17 × 8-9 µm (Tibell,
1976); peninsular Florida south to Highlands County ....................................................................
....................................................................................... Thelomma carolinianum (Tuck.) Tibell
10. Stictic acid agg. present; ascospores 7-9 × 5-6 µm (Tibell,1987) ..................................................
...........................................................................................Nadvornikia (See Thelotremataceae)
9. Apothecial margin C+ red (lecanoric acid), KOH-, PD-;
ascospores with very dark middle region ......................................................................... Tylophoron
CALICIACEAE Chev.
CALICIUM Pers.
1. Lowerside of capitulum white pruinose or not pruinose ............................................................................ 2
2. Apothecia relatively large, over 0.5 mm tall............................................................................................ 3
3. Thallus KC+ orange (xanthones), areolate and yellowish or more
often in Florida material not evident; stalk IKI-; ascospores
10.5-14 × 4.5-7.5 µm (Tibell, 1987); common, peninsular Florida ................... C. hyperelloides Nyl.
3. Thallus KC- (no substances), granular; stalk IKI+ blue;
ascospores 9-14 × 4-7.5 µm (Tibe11, 1987); Bradford,
Leon and Marion counties .................................................................................... C. lenticulare Ach.
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