lichens of the lower ozark region of missouri and arkansas

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KEY E: CRUSTOSE LICHENS WITH STALKED APOTHECIA OR STIPITATE STRUCTURES 1. Stalked or stipitate structures hyphophores (producing conidiospores); ascospores, if present, hyaline, multiseptate to muriform, from sessile apothecia ...............................2 2. On canopy hardwood branches; hyphophores black, acicular ........ Gyalideopsis sp. # 1 2. On bryophytes, especially Leucodon, over trees and rocks; hyphophores pale, apically expanded and capped with a peltate, radially stellate apical plate ........... Gomphillus americanus 1. Stalked structures terminating in apothecia; ascospores usually present, greenish to brown, simple to 1-septate ...................................................................3 3. Ascospores prevailingly 1-or more septate ......................................4 4. On Alnus; stipes often branched; at maturity some ascospores 2-3-septate ............ .................................................... Stenocybe pullatula 4. Not on Alnus; stipes usually unbranched; ascospores consistently 1-septate ..........5 5. On thalli of the polyporous fungus Trichaptum biforme ....................... .......................................... Phaeocalicium polyporaeum 5. Cor ticolous or lignicolous .............................................6 6. Asci disintegrati ng early and forming a mazaedium ................ Calicium 6. Spores maturing w ithin mature asci, mazaedium lacking .................... ...........................................Chaenothecopsis pusilla 3. Ascospores simple ........................................................7 7. Asci disintegrating early and forming a mazaedium; spores maturing outside the asci ..8 8. On thalli of Pertusaria; stipes < 2 × longer than apothecia; mazaedium blackish .... ............................................... Sphinctrina tubiformis 8. Corticolous or lignicolous; stipes usually > 2 × longer than apothecia; mazaedium pale brownish .................................................. Chaenotheca 7. Asci persistent; spores maturing within asci ..................................9 9. Apex of ascus uniformly thickened ............................ Mycocalicium 9. Apex of ascus unevenly thickened, eventually becoming penetrated by a canal ...... ....................................................Chaenothecopsis
KEY F: CRUSTOSE LICHENS WITH PERITHECIA OR PERITHECIA-LIKE ASCOMATA 1. Ascospores simple, hyaline ....................................................2 2. Asci with > 100 spores .......................................Thelopsis flaveola 2. Asci with 8 spores .........................................................3 3. Terricolous; thallus filmy and indistinct or obsolete ........... Thrombium epigaeum 3. Corticolous or saxicolous; thallus obvious, usually not filmy .....................4 4. Peritheciate; ascospores single-walled, < 30 �m long ................Verrucaria 4. Apothecia immersed in corticate verrucae and opening via pore-like ostioles; ascospores double-walled, > 40 �m long ..................................... Pertusaria 1. Ascospores 1-septate to muriform, hyaline or colored ................................5 5. Ascospores muriform to submuriform, with at least 1 cell longitudinally divided ........6 6. Muscicolous .................................... Chromatochlamys muscorum 6. Cor ticolous or saxicolous ................................................7 7. Thallus brown to grayish brown, rimose-areolate to minutely squamulose ........8 8. Spores 2/ascus; thallus of ± dispersed subsquamulose areoles ............... ............................................. Endocarpon pusillum 8. Spores 8/ascus; thallus continuous, areolate to rimose ...................... ........................................... Staurothele diffractella 7. Thallus variously colored, ± continuous ..................................9 9. Saxicolous .......................................... Polyblastia sp. 9. Cor ticolous .....................................................10 10. Ascospores brown, at least at maturity; photobiont always present ......11 11. Thallus dull, brownish gray, with dark rounded ascomata composed of several perithecia-like locules; ascospore walls not thickened, the lumina conformable with the outer spore wall .................... Mycoporum 11. Thallus sublustrous, brown tinged with olive greenish, with corticate verrucae containing embedded perithecia and apical brown ostioles; ascospore walls thickened, the lumina not conformable to the outer spore wall ............................................ Pyrenula ravenelii 10. Ascospores persistently hyaline; photobiont present or absent ..........12 12. Photobiont Trentepohlia ...................Strigula submuriformis 12. Photobiont absent .........................................13
Page 1: LICHENS OF THE LOWER OZARK REGION O
Page 4 and 5: In this treatment, a general key is
Page 6 and 7: Key to sec tions (continued) 7. Apo
Page 8 and 9: Key B: Foliose lichens (continued)
Page 14 and 15: KEY C: SQUAMULOSE LICHENS 1. Perith
Page 16 and 17: Key D : Sterile crustose lichens (c
Page 20 and 21: Key F: Crustose lichens with perith
Page 22 and 23: KEY H: CRUSTOSE LICHENS WITH ROUND
Page 24 and 25: Key H : Crustose lichens with round
Page 30 and 31: AGONIMIA Zahlbr. (Verrucariaceae) C
Page 32 and 33: with evident apical dome, with 8 hy
Page 34 and 35: BACIDIA De Not. (Lecanoraceae) Crus
Page 36 and 37: 5. Thallus of thick areoles; norsti
Page 38 and 39: 8. Thallus absent, or consisting of
Page 40 and 41: essentially concolorous with the th
Page 42 and 43: Canoparmelia crozalsiana (de Lesd.
Page 44 and 45: a thickened I+ blue apical dome, wi
Page 46 and 47: 2. Cu ps no t proliferating from th
Page 48 and 49: Uncommon, on exposed, well-drained
Page 50 and 51: Very common on well-drained soil, l
Page 52 and 53: Gelatinous lichens with dull, brown
Page 54 and 55: Infrequent in lightly shaded dry me
Page 56 and 57: Diploschistes actinostomus (Ach.) Z
Page 58 and 59: Broad lobed, yellow-green foliose l
Page 60 and 61: Uncommon, in habitats similar to th
Page 62 and 63: Small green to brown squamulose lic
Page 64 and 65: Crustose lichens with powdery, gran
Page 66 and 67: fragments in dolomite glades. More
Page 68 and 69:
convenience, some morphologically s
Page 70 and 71:
Infrequent in shaded mesic habitats
Page 72 and 73:
3. Apothecia pale to orange brown;
Page 74 and 75:
Myelochroa aurulenta (Tuck.) Elix &
Page 76 and 77:
Ochrolechia yasudae Vain. [OCHYA] -
Page 78 and 79:
Occasional on shaded tree boles and
Page 80 and 81:
Parmotrema margaritatum (Hue) Hale
Page 82 and 83:
4. Wart C+ red (lecanoric acid), wi
Page 84 and 85:
which has four ornamented spores pe
Page 86 and 87:
1. Thallus sorediate. 2. Medulla pr
Page 88 and 89:
photobiont Trebouxia, asci Bacidia-
Page 90 and 91:
1. Medulla C- (gyrophoric acid abse
Page 92 and 93:
Porpidia tahawasiana Gowan [PORTA]
Page 94 and 95:
correlation between habitat ecology
Page 96 and 97:
1. Upper cortex UV+ yellow, K- (lic
Page 98 and 99:
Rimelia subisidiosa (Müll. Arg.) H
Page 100 and 101:
__________ SCOLICIOSPORUM A. Massal
Page 102 and 103:
Known from a single site at the bas
Page 104 and 105:
TRAPELIA M. Choisy (Trapeliaceae) S
Page 106 and 107:
3. Medulla K+ yellow or red. 5. Usu
Page 108 and 109:
Verrucaria faye ttensis Servít [VE
Page 110 and 111:
north of the Lower Ozarks. [fumarpr
Page 112 and 113:
Hale, M.E. 1957. Corticolous lichen
Page 114 and 115:
abietinum (Calicium) 39 ABSCONDITEL
Page 116 and 117:
scripta 21, 66, 87 grayi (Cladonia)
Page 118 and 119:
praetextata (Peltigera) 93 prasina
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lichens of the lower ozark region of missouri and arkansas

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