PART 1

Chaenothecopsis pilosa Tibell & Kalb, Nova Hedwigia 60: 211. 1995.
New to North America. FLORIDA. Wakulla County: Apalachicola National Forest, along Forest Service
Rd. 309 at Lost Creek just S of Leon Co. line, 5.6 mi W of Fla. Hwy. 267, swamp forest, on Tylophoron
protrudens on Fraxinus, 4 Dec 1988, Harris 23372 (NY).
Chaenothecopsis rappii (Nádv.) R. C. Harris, comb. nov.
Mycocalicium rappii Nádv., Ann. Mycol. 40: 139. 1942.
This species has simple pointed ascospores as in Mycocalicium but Tibell includes other species with this
ascospore type in Chaenothecopsis. The stalk is pale with irregularly arranged hyphae and the ascus tip has
a narrow canal which are considered by Tibell, 1987) as better indicators of generic placement if one wishes to
recognize Chaenothecopsis as distinct from Mycocalicium. It would be simpler not to.
MYCOCALICIUM Vainio
Two species are known from Florida. See key above. Mycocalicium ravenelii is close to M. calicioides
(Nádv.) Tibell. Both seem to me quite distinct from M. subtile, the generitype, and probably should be
segregated into Sphinctrinella Nádv. (type, S. calicioides).
PHAEOCALICIUM A. Schmidt
Only the single species, P. polyporaeum (Nyl.) Tibell, occurs in Florida and is on the polypore, Tricaptum
biforme (Fr.) Ryv. (Polyporus pargamenus Fr.). See key to genera.
LEOTIALES
BAEOMYCETACEAE Dumortier
(incl. Icmadophilaceae Triebel)
I do not think that recognition of Icmadophilaceae is warrented and does not seem to be in line with
general practice in the leotioid ascomycetes. The generic split between Baeomyces Pers. and Dibaeis
Clements is well supported. Dibaeis baeomyces (L. fil.) Rambold & Hertel ( syn. Baeomyces roseus Pers.) is
the only species in Florida. It is obviously at the southern edge of its North American range. It was collected
on a road bank in Escambia County and disintegrated sandstone at Rock Hill, Washington County.
LECANORALES
COLLEMATACEAE Zenker
KEY TO GENERA
1. Ascospores septate; thallus without reticulate maculae......................................................................................................................... 2
2. Thallus with cortex...............................................................................................................................................................Leptogium
2. Thallus without cortex.............................................................................................................................................................. Collema
1. Ascospores simple; thallus with reticulate markings (maculae) due to absence of photobiont;
apothecia large, with very thick wrinkled margin; thallus tomentose below;
reported by Moore (1970) from Citrus County, not seen by me ......................................................... Physma byrsaeum (Ach.) Tuck.
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