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Trichothelium crocynioides R. C. Harris, sp. nov. Species unica thallo subbyssoideo, pagina thalli hyphis irregularibus erectis, hypothallo nigro byssoideo et ascosporis angustis, 3-septatis, 20-30 × 3-4 µm. Type. FLORIDA. Highlands County: Highlands Hammock State Park, swampy area near stream, on cypress, 22 Dec 1965, Wetmore 13907 (NY, holotype; FLAS, MIN & to be distributed, isotypes). Thallus light olive gray, continuous, smooth, dull to almost byssoid in appearance due to short, irregular erect hyphae projecting from thallus surface; hypothallus conspicuous, black, byssoid, composed of loose interconnected dark brown or gray brown hyphae. Ascomata black, immersed, subglobose, ca. 0.2-0.3 mm diam.; wall blackish brown, sometimes with purplish tint, reddish purple in HNO3. Asci cylindrical, 95-110 × 8-9 µm, with eight subbiseriate spores. Ascospores narrowly fusiform to cylindrical, 4(-7)-celled, 20-35 × 2.5-3.5 µm; microconidia not found. Trichothelium crocynioides is named for its superficial resemblance to Crocynia pyxinoides Nyl. The very distinctive thallus with erect, projecting hyphae and byssoid hypothallus may be worthy of generic or subgeneric recognition. I prefer to wait until the variation in Trichothelium is more fully understood. Thus far all specimens are from Taxodium. Additional specimens. FLORIDA. Lee County: Caloosahatchee River State Recreation Area, along Co. Rd. 78 ca. 3 mi E of Telegraph Creek, 26°43'N, 81°39'W, Taxodium swamp, Buck 22994, Harris 30215, 30246 (NY). Trichothelium guentheri (Flotow) R. C. Harris, comb. nov. Verrucaria guentheri Flotow, Bot. Zeitung 8: 575. 1850. Porina guentheri (Flotow) Zahlbr., Cat. lich. univ. 1: 384. 1922. Pseudosagedia guentheri (Flotow) Hafellner & Kalb, Biblioth. Lichenol. 57: 172. 1995. Type not seen. This is treated in Europe as a highly variable species. The inclusion of North American collections does not appreciably add to the problem. Specimens from Kentucky, Missouri, North Carolina and Virginia are fairly homogeneous with clavate-fusiform, 8(-9)-celled ascospores, 32-45 × 5-6 µm. Collections from Maine and Massachusetts have larger, more septate ascospores and may prove closer to Porina grandis (Körber) Zahlbr. (spp. 7, 8, 9 of my thesis and reported for North America by McCarthy (1993) on this basis). The species is apparently mostly semiaquatic except for the Missouri collection which from dry rock. Porina hibernica James & Swinscow North American records are collections of the Trichothelium cestrense complex lacking isidia and having smaller ascomata than P. hibernica. Trichothelium isidiatum R. C. Harris, sp. nov. Similis T. cestrensi sed thallo dense isidiato et ascosporis fusiformi-clavati, 7-septatis, 43-54 × 6-7.5 µm. Type. ILLINOIS. Jackson County: Shawnee National Forest, Pomona Natural Bridge, ca. 8 mi S of Murphysboro, ca. 37°38'N, 89°20'W, beech-maple woods, at base of oak, 15 Oct 1993, Harris 31265 (NY, holotype). Thallus dark gray green, continous but mostly concealed by dense isidia; isidia ± cylindrical, irregular, occasionally branched, with a thin, papillose? cortex. Ascomata immersed, almost concealed by isidia, black, subglobose, ca. 0.3-0.4 mm diam.; wall brown above with bluish-violet tints in lower part, pale below. Asci fusiform-cylindrical, ca. 130-160 × 15-17 µm, with eight subbiseriate spores. Ascospores fusiform-clavate, 8(- 9)-celled, 43-54 × 6-7.5 µm. Microconidia not found. 170
Trichothelium isidiatum could be referred to Zamenhofia if one accepts this genus. It is rather similar in aspect to Zamenhofia hibernica. It does not have periphyses as far as I can tell. There seems to be one isidiate species per genus in North America, Clathroporina isidiifera, Porina scabrida, Segestria sp. (thesis Porina sp. 4) and Trichothelium isidiatum. The last is known only from the type collection. Trichothelium lineare (Leighton) R. C. Harris, comb. nov. Verrucaria linearis Leighton, Brit. angiocarp. lich. 52. 1851. Porina linearis (Leighton) Zahlbr., Cat. lich. univ. 1: 391. 1922. Pseudosagedia linearis (Leighton) Hafellner & Kalb, Biblioth. Lichenol. 57: 174. 1995. Type not seen. Trichothelium lineare is reported from North America but not known in the East. Trichothelium nitidulum (Müll. Arg.) R. C. Harris, comb. nov. Porina nitidula Müll. Arg., Flora 66: 336. 1883. Pseudosagedia nitidula (Müll. Arg.) Hafellner & Kalb, Biblioth. Lichenol. 57: 173. 1995. Type not seen. Trichothelium rhaphidospermum (Müll. Arg.) R. C. Harris, comb. nov. Porina rhaphidosperma Müll. Arg., Hedwigia 34: 35. 1895. Type. MASSACHUSETTS. On hemlock, Willey (FH-Tuck 3988, US, isotypes). Trichothelium thaxteri (R. Sant.) R. C. Harris, comb. nov. Porina thaxteri R. Sant., Symb. Bot. Upsal. 12(1): 218. 1952. Pseudosagedia thaxteri (R. Sant.) Hafellner & Kalb, Biblioth. Lichenol. 57: 173. 1995. Type. FLORIDA. Dade County: Cutler, Thaxter 421 (MICH, isotype). Trichothelium sp. Thaxter 92 This taxon is possibly related to the foliicolous Porina moralesiae Lücking but I have no comparative material nor have I re-examined the specimens studied for my thesis. It was included as Porina sp. 1. INDEX TO SCIENTIFIC NAMES Names in boldface represent new nomenclature; names in italics are synonyms, and names in regular typeface are accepted names. Acrocordia............................................................................122 Acrocordia cavata................................................................122 Acrocordia conoidea............................................................122 Acrocordia gemmata ...........................................................122 Acrocordia megalospora .....................................................122 Acrocordiaceae....................................................................121 Acrocordiella..........................................................................93 Acrocordiella occulta .............................................................93 Amandinea.............................................................................45 Amandinea polyspora............................................................46 Amandinea punctata .............................................................46 Anisomeridium.....................................................................123 Anisomeridium adnexum..................................................143 Anisomeridium albidoatrum.............................................144 Anisomeridium albisedum...................................................126 Anisomeridium ambiguum...................................................126 Anisomeridium americanum ............................................144 Anisomeridium angulosum ..............................................144 Anisomeridium anisolobum...........................................69, 126 Anisomeridium antillarum ................................................144 Anisomeridium aureopunctatum .....................................127 Anisomeridium holopolium ..............................................147 Anisomeridium immersum ...............................................147 Anisomeridium indicum....................................................147 Anisomeridium infernale ..................................................147 Anisomeridium interspersum...............................................130 Anisomeridium juistense .....................................................129 171 Anisomeridium australiense............................................ 144 Anisomeridium biforme....................................................... 127 Anisomeridium biformoides ............................................ 127 Anisomeridium carinthiacum .............................................. 144 Anisomeridium complanatum ......................................... 145 Anisomeridium consimile ................................................ 145 Anisomeridium consobrinum .............................................. 145 Anisomeridium distans ....................................................... 127 Anisomeridium elegans ................................................... 145 Anisomeridium endobryum ............................................. 146 Anisomeridium epiphyllum ................................................. 146 Anisomeridium excaecariae ............................................ 128 Anisomeridium excellens ................................................ 146 Anisomeridium feeanum..................................................... 126 Anisomeridium finkii......................................................... 128 Anisomeridium flavopallidum.......................................... 146 Anisomeridium foliicola....................................................... 146 Anisomeridium glaucescens........................................... 146 Anisomeridium gregale .................................................... 146 Anisomeridium griffinii..................................................... 128 Anisomeridium laevigatum .............................................. 147 Anisomeridium leptospermum........................................ 147 Anisomeridium leucochlorum ............................................. 147 Anisomeridium magnosporum............................................ 148 Anisomeridium megalosporum....................................... 148 Anisomeridium monosporum.......................................... 148
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PART 1 INTRODUCTION Sadly this intr
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...................................
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1. Ascomata immersed or emergent; n
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ascospores 18-24 × 3 µm; Louisian
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2. Ascospores 1(-2)/ascus..........
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3. Ascomata immersed or sessile, bl
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GYROSTOMUM Fr. Only the single spec
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Sarcographia labyrinthica (Ach.) M
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to expose black rim around pore; co
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4. Ascospores light to dark brown..
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2. Apothecia minute, ca. 0.2 mm tal
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three collections of C. stemonea te
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...................................
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COLLEMA Wigg. [The non-lichenized l
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PILOCARPACEAE Zahlbr. There are mor
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doubt the occurrence of this specie
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22. Podetia forming abruptly flared
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11. Isidia cylindrical ............
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12. Medulla yellow; thallus not sor
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3. Soredia farinose, not derived fr
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Lake County U. baileyi (Stirton) Za
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10. Ascospores 22-41 × 11-21 µm..
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6. Underside white or purplish gray
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PD+ dirty orangish; ascospores 4-ce
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9. Medulla PD+ orange .............
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hope, leads to more intensive study
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Chaetothyriales and a number of par
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2. Ascomata scattered; clypeus larg
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Duval County.......................
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Arthopyrenia atomarioides Müll. Ar
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ascomata, muriform ascospores) and
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1. Ascoma simple, with only a singl
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Mycoporum compositum (Massal.) R. C
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XANTHOPYRENIACEAE Zahlbr. It has be
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Pyrenocollema tichothecioides (Arn.
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The family is defined here more nar
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a basal fringe; ascospores 20-30 ×
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above). The selection of piece B is
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Arthopyrenia exasperata R. C. Harri
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immersis clypeo lato et microconidi
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9. Ascospores small, 16-22 × 8-9
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?Polyblastiopsis alboatra Zahlbr. i
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Additional specimens. FLORIDA. Coll
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5. Endospore absent or poorly devel
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1. Ascospores small, under 20 µm l
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Distopyrenis pachyospora Aptroot Ap
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Tomasellia nigrescens Müll. Arg.,
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illustration and distribution, P. c
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12. Ascospores 30-42(-53) × 11-15
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33. Ascospores 44-50(-56) × 17-24
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47. Endospore very reduced; ascospo
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celled, becoming filled with reddis
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5.VIII.1990, Kalb 23189, not seen,
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Aptroot, for which I have seen the
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The type collection has some ascosp
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Pseudopyrenula endochrysea Vainio,
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TRYPETHELIUM Sprengel 1. Thallus or
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2). Trypethelium variolosum Ach., A
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1. Ascomata present; pycnidia prese
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Page 121 and 122: This species was treated in 1990 as
Page 123 and 124: subclavate, 180-220 × 45-55 µm, w
Page 125 and 126: Monoblastia borinquensis R. C. Harr
Page 127 and 128: 9. Ascospores biseriate or irregula
Page 129 and 130: conidia in a single row; macroconid
Page 131 and 132: 33. Ascospores broadly elliptical,
Page 133 and 134: 50. Medulla UV-; cortex UV+ yellow;
Page 135 and 136: 69. Growing in aquatic or semiaquat
Page 137 and 138: Anisomeridium angulosum (Müll. Arg
Page 139 and 140: Arthopyrenia glaucescens Müll. Arg
Page 141 and 142: 16.5-23 µm. As I have unpacked onl
Page 143 and 144: Species distincta macropycnidiis ro
Page 145 and 146: the species or strain of the photob
Page 147 and 148: univ. 1: 188. 1921. Phyllobathelium
Page 149 and 150: and S. tagananae are transferred fr
Page 151 and 152: 1.0 mm diam.; wall black, thinner b
Page 153 and 154: this to mean Massalongo intended (i
Page 155 and 156: 5. Ascospores basically 4/ascus, 11
Page 157 and 158: Thelenella humilis R. C. Harris, sp
Page 159 and 160: Afro-montagnard Centre-oriental: en
Page 161 and 162: multiseptate in Trichothelium. Asco
Page 163 and 164: Pyrenula mastoidea Ach., Ges. Natur
Page 165 and 166: junk heap. These variants (sp. 6, s
Page 167 and 168: Hedwigia 67: 274. 1927. Type not se
Page 169: dark green-blue in section; on bamb
Page 173 and 174: Arthopyrenia planiuscula...........
Page 175 and 176: Distopyrenis pachyospora ..........
Page 177 and 178: Mycocalicium subtile...............
Page 179 and 180: Polyblastiopsis sphaerica..........
Page 181 and 182: Thelenella humilis.................
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