lichens of the lower ozark region of missouri and arkansas

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a thickened I+ blue apical dome, with 8 hyaline, ellipsoid, simple spores; 3 species in the region. This genus is sometimes included within Cladonia. 1. Podetia white, K+ yellowish (atranorin) .................................... C. rangiferina 1. Podetia green or greenish gray, K-. 2. Ultimate branches appearing windswept and strongly oriented in one direction, usually 4 at each terminal node ............................................................ C. arbuscula 2. Ultimate branches no t stron gly oriented in one direction, often 2-3, sometimes 4, at each terminal node ............................................................... C. subtenuis Cladina arbuscula (Wallr.) Hale & W. L. Culb. [CLAAR] - fruticose Rare on cherty, well drained ridges and upper slopes in light shade. The podetia of this species appear slightly more robust than those of C. subtenuis. [fumarprotocetraric & usnic acids] Cladina rangiferina (L.) Nyl. [CLARA] - fruticose Local in acidic, well drained areas with slight shade, such as on massive exposures of siliceous rocks or at the edges of glades. This species occurs on both sandstone and igneous sites. The ashy white thallus is distinctive. [atranorin, fumarprotocetraric acid] Cladina subtenuis (Abbayes) Hale & W. L. Culb. [CLASU] - fruticose Frequent in well drained acidic soils, typically in light shade. Typical habitats include wooded upland slopes in soils derived from chert, sandstone, or igneous parent materials, along roads through wooded uplands, and in upland old fields. This species also occurs on rotting decorticate logs in wooded uplands. [fumarprotocetraric & usnic acids] __________ CLADONIA P. Browne (Cladoniaceae) Fruticose lichens with well developed, usually persistent, basal squamules having an evident upper cortex, apothecia convex to globose, sessile on the squamules to terminal on well-developed attenuate, blunt, or cupuliform, branched or simple podetia, the podetia sometimes squamulose, in some species the podetia typically remaining sterile, photobiont Trebouxia, asci with thickened I+ blue apical dome, with 8 hyaline, simple, fusiform to ellipsoid or ovoid spores; 34 species in the region — several other species have been documented just outside the Lower Ozarks and are likely to occur in the region. References: Thomson (1967). Key to the species groups of Cladonia in the Lower Ozarks 1. Thallus, even when well-developed, consisting only of squamules; commonly sterile or with sessile or subsessile apothecia; podetia absent or always 5 mm long, these pointed, branched, clavate, or cupuliform; sterile or fertile. 2. Podetia forming distinct cups ..............................................Key B 2. Podetia prevailingly not fo rming cu ps — oc ca sio na lly a few p od etia w ill have small, shallow, poorly developed cups. 3. Podetia abundantly and repeatedly branched, typically >5 cm long; esorediate .......Key C 3. Podetia simple or forked to sparingly branched, typically
3. Apothecia present, sessile or on tiny podetia. 4. Apothecia on minute, delicate podetia; thallus K+ deep yellow, P+ yellow (thamnolic acid present, fumarprotocetraric acid absent) ............................C. parasitica 4. Apothe cia sessile; thallus K-, P+ red (thamnolic acid absent, fumarprotocetraric acid present) ....................................................... C. caespiticia 3. Apothecia lacking; tiny pointed podetia present ............. C. macilenta var. bacillaris 2. Apo thecia lacking. 5. Squamules K+ yellow turning red (norstictic acid present). 6. Atranorin present; rare ....................................C. symphycarpa 6. Atranorin absent; common ................................ C. polycarpoides 5. Squamules K- or K+ persistently yellow (norstictic acid absent). 7. Squamules K+ deep or pale yellow (atranorin or thamnolic acid present). 8. Squamules sorediate, K+ deep yellow (tham nolic acid present) .......C. ravenelii 8. Squamules esorediate, K+ pale yellow (thamnolic acid absent). 9. Squamules P+ yellow (fumarprotocetraric acid absent) .......... C. cariosa 9. Squamules P+ red (fumarprotocetraric acid present). 10. Sq ua mule s lo ng a nd strap-sh ap ed , o ften exc ee din g 7 m m lon g; s ph ae roph orin ab sent; on e xpo sed to ligh tly sh ad ed so il ................C. apodocarpa 10. Squamules shorter, usually
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 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 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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