lichens of the lower ozark region of missouri and arkansas

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Key B: Foliose lichens (continued) 26. Thallus umbilicate and centrally attached or of aggregated, subumbilicate thalli; well-defined branching lobes absent; diaspores absent; perithecia usually present .. ..................................................Dermatocarpon 26. Thallus characteristically foliose, with branched lobes; diaspores present or absent; apotheciate or sterile ...............................................27 27. Sorediate ...................................................28 28. Upper cortex densely pruinose, at least near lobe tips ...... Physconia 28. Upper cortex not pruinose ...................................29 29. Lower cortex black ........................... Phaeophyscia 29. Lower cortex pale ......................................30 30. Thallus lobes minute, < 0.5 mm wide and tightly appressed; welldeveloped rhizines lacking ...................... Hyperphyscia 30. Thallus lobes > 0.5 mm wide, adnate but not tightly appressed; welldeveloped rhizines present ......................... Physciella 27. Not sorediate ...............................................31 31. Lobes subterete, tough, always < 0.4 mm wide; rhizines absent; ascospores 2-celled, hyaline .......................... Speerschneidera euploca 31. Lobes ± flattened, not tough, prevailingly > 0.5 mm broad; rhizines present; ascospores brownish, or if hyaline, then simple .....................32 32. Upper cortex lustrous, not lobulate; marginal dark pycnidia usually common; apothecia marginal to submarginal; ascospores Tuckermannopsis simple, hyaline 32. Upper cortex dull, typically with abundant lobules; pycnidia, if present, strictly laminal; apothecia laminal; ascospores 2-celled, brown ......33 33. Apothecia common; lower surface pale throughout; thallus lobes elongate and uniformly narrow, the margins dissected into linear, ± appressed lobules ......................Anaptychia palmulata 33. Apothecia very rare; lower surface dark at center; thallus lobes short and apically broadened, with irregularly dissected, Phaeophyscia erect lobules squarrosa 19. Upper cortex various shades of gray or blue gray, without brown tints; K- or K+ yellow34 34. Upper cortex with numerous small white pores .....................Punctelia 34. Upper cortex lacking small white pores (sometimes white angular markings or reticulations present) ..................................................35
Key B: Foliose lichens (continued) 35. Lobes broad, suborbicular, apically broadened and rounded, usually > 5 mm wide; thal lus typically loosely adnate.......Parmotrema, Rimelia, Canomaculina (see key to Parmotrema on p. 89) 35. Lobes narrow, linear to slightly expanded, prevailingly
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 12 and 13: 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 18 and 19: KEY E: CRUSTOSE LICHENS WITH STALKE
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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