PART 1
PART 1
PART 1
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own (not known in Florida); conidiospores simple,<br />
brown; Collier County ...................................................................................................T. moderatum Nyl.<br />
NOTES<br />
Tibell (1991) described the sporodochial anamorph of T. moderatum but did not mention one for T.<br />
protrudens. However, Florida material always has conspicuous sporodochia. In fact, seven of the ten Florida<br />
collections consist of sporodochia only. The same anamorph was also found on Lindig 1 from Colombia. The<br />
number of cells in a conidium is apparently determined by how the hyphae break to form the chlamydosporelike<br />
conidia. In T. moderatum the sporodochia apparently do not occur on the same thallus as the ascomata.<br />
However, to my eye two collections of T. protrudens have both on the same thallus. There is only a single<br />
chemotype in Florida as neither lichexanthone nor the red ascomatal pigment was detected. Tylophoron<br />
protrudens is probably common but not often collected by lichenologists as it somewhat resembles members<br />
of the Aphyllophorales. It might also be confused with Cryptothecia striata Thor (Chiodecton montagnei auct.)<br />
that also seems sterile and is C+. A section of a sporodochium with conidiospores readily identifies the<br />
Tylophoron.<br />
SPHINCTRINACEAE Choisy<br />
SPHINCTRINA Fr.<br />
Only S. tubiformis is known from Florida. See key to genera.<br />
MYCOCALICIACEAE A. Schmidt<br />
KEY TO CHAENOTHECOPSIS AND MYCOCALICIUM<br />
1. Apothecia and thallus lacking lichen substances; ascospores simple,<br />
elliptical to fusiform.................................................................................................................................... 2<br />
2. Apothecia distinctly stalked, not hairy.................................................................................................... 3<br />
3. Exciple and stalk brown or stalk almost colorless; exciple not<br />
incurved and rugose......................................................................................................................... 4<br />
4. Stalk brown to dark brown; stalk hyphae more or less parallel .................................................... 5<br />
5. Cells of lower part of exciple not enlarged, not paraplectenchymatous .................................. 6<br />
6. Apothecia relatively broad and flat, ± conical, often<br />
2-3/stalk; stalk relatively short and stout; ascospores<br />
6-8 × 2.5-3.5 µm; on old wood; common, south to<br />
Palm Beach County ............................................... Mycocalicium subtile (Pers.) Szatala<br />
6. Apothecia narrowly obconical or obpyriform, often 2-3/stalk;<br />
stalk long, slender and flexuous; ascospores pale, 6-7 × 2.5-3 µm;<br />
rare, Washington County ................................Chaenothecopsis savonica (Räs.) Tibell?<br />
5. Cells of lower part of exciple enlarged and paraplectenchymatous;<br />
ascospores 6-8 × 2.5-3.5 µm; on old wood; Citrus and Sumter counties.................................<br />
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