PART 1

3. Ascospores 35-50 × 12-15 µm; pseudostromata brown, ± shiny
with medulla KOH+ red; Brazil .............................................[B. endochryseum (Vainio) R. C. Harris]
2. Ascospores 6-celled, 25-32 × 6-9 µm; pseudostromata ± sessile, solitary
or 2-3 fused, brown, often somewhat pruinose around ostiole; medulla
orange-brown to brown in section, KOH+ scarlet; Southeast Asia ........................................................
............................................................................................... [B. albidoporum (Mak. & Pat.) R. C. Harris]
1. Ascospores muriform; hymenium inspersed............................................................................................. 5
5. Thallus ± smooth................................................................................................................................... 6
6. Ascospores mostly over 50 µm long; Africa ...................................................................................... 7
7A. Ascospores 44-80 µm long .........................................................................[B. mastoideum Ach.]
7B. Ascospores 100-120 µm long .................................................... [B. lineare (Dodge) R. C. Harris]
7C. Ascospores 130-200 µm long............................................ [B. sphaericum (Dodge) R. C. Harris]
6. Ascospores 40-50 × 12-17 µm, with 10-11 transverse septa;
throughout Florida ............................................................... B. madreporiforme (Eschw.) Trevisan
5. Thallus with subglobose to subdactyliform areoles filled with white
oxalate? crystals and a few bark cells; ascomata nestled between
areoles, brown, with orange crystals in medulla, KOH+ scarlet;
ascospores 90-140 × 27-35 µm; India............................... [B. tuberculosum (Mak. & Pat.) R. C. Harris]
NOTES
Bathelium albidoporum (Makhija & Patwardhan) R. C. Harris, comb. nov.
Trypethelium albidoporum Makhija & Patwardhan, Internatl. J. Mycol. Lichenol. 5: 238. 1992.
Type. [VIETNAM]. Tu-phap, Tonkin, Balansa s.n. (BM, holotype).
Additional specimens. BURMA. Kachin State: along Ledo Road, 21 mi S of Bhamo, 650 ft, Apr
1945, McMillen 245j (US). CHINA. Hainan: Ling-shui, Deng 1991 (BPI).
Bathelium carolinianum (Tuck.) R. C. Harris, comb. nov.
Trypethelium carolinianum Tuck., Amer. Jour. Sci. Arts, ser. 2, 25: 429. 1858. Type. SOUTH
CAROLINA. 1851, Ravenel 298 (FH-Tuck 3952, lectotype, selected here).
This seems to be the oldest name for the taxon previously known as Trypethelium mastoideum. Several
older names have been cited as synonyms. The only one of these I have not re-examined is T. feei Meissner
ex Fée. Trypethelium phlyctaena Fée and T. quassiaecola Fée are synonymous with T. ochroleucum.
Trypethelium scoria Fée is apparently a good species of Trypethlium s. lat.
Bathelium degenerans (Vainio) R. C. Harris, comb. nov.
Pseudopyrenula degenerans Vainio, J. Bot. 34: 292. 1896. Trypethelium degenerans (Vainio)
Zahlbr., Cat. lich. univ. 1: 490. 1922. Type. DOMINICA. Laudat, 1700 ft, Elliot s.n. (BM, isotype).
This species is very close to B. carolinianum but the pseudostromatal pigment reacts KOH+ red. The
pigments need to be analyzed. The KOH reaction may be due to differing pigment concentrations. I have
seen this in other species where a reaction may vary from yellow to red depending on concentration. For the
present I am maintaining them as distinct as there is little overlap in distribution. Bathelium degenerans is not
known from North America but is not uncommon in the Caribbean and Mexico, also known from Brazil, Costa
Rica and Venezuela.
Bathelium endochryseum (Vainio) R. C. Harris, comb. nov.
110