lichens of the lower ozark region of missouri and arkansas

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5. Thallus of thick areoles; norstictic and/or stictic acid present ........... B. spuria s.l. 5. T ha llus thin, rim os e b ut no t areola te; norstictic a nd high co nc en tration of co nn orstictic a cid present .................................................. B. "stigmaea" 2. Thallus brown or dark green, rarely grayish or lacking; K-. 6. Thallus corticolous ............................................. Amandinea 6. Thallus saxicolous. 7. Thallus not evident, or traces of thin gray thallus present ........ Amandinea punctata 7. Thallus well-developed, gray, brown, or greenish. 8. T hallus grayish green to dark green, with confluent, rounded, granules and no evident prothallus; spores bacilliform, 3-septate ........................B. vernicoma 8. Thallus brown, with lustrous, shiny, angular areoles and a well-developed black prothallus; spores ellipsoid, 1-septate ....................... B. novomexicana 1. Apothecia with a well developed thalline margin. 9. Spores thin-walled, the locules not angular ........................ Amandinea dakotensis 9. Sp ore w alls thick en ed , t he loc ule s angu lar or roun de d, we ll sepa rated from the o uter wa ll . Rinodina Buellia curtisii (Tuck.) Imshaug [BUECU] - crustose Occasional on exposed to lightly shaded hardwoods, often growing on upper branches of canopy trees. In the field this species appears identical to B. stillingiana. [norstictic acid] Buellia novomexicana de Lesd. [BUENO] - crustose Infrequent on exposed, relatively small, sandstone and chert fragments in dolomite glades. This species is easily recognized by the chocolate brown thallus with a well-developed black prothallus, and the restricted habitat. Buellia spuria (Schaer.) Anzi [BUESP] - crustose Frequent on exposed to lightly shaded siliceous rocks in glades and wooded uplands. This species has a thick light gray thallus evocative of the thallus of Lecanora oreinoides. Strains with stictic acid and norsti cti c acid occur in the region. [norstictic and/or sti ctic acids, ± atranorin] Buellia "stigmaea" Tuck. [BUESTG] - crustose Frequent on lightly shaded siliceous rocks, especially chert fragments and boulders, in woodlands. This species has been confused with B. spuria, which has a thicker thallus, immersed apothecia, occurs in more exposed sites, and typically contains stictic acid (occasionally norstictic acid). Local populati ons tentatively called B. stigmaea are characterized by a high concentration of connorstictic acid. [norstictic & connorstictic acids] Buellia stillingiana J. Steiner [BUESTL] - crustose Common on boles and branches of a variety of hardwoods, in exposed to moderately shaded situations. This species grows on young trees in old fields and along woodland edges, as well as on older trees in mature woodlands. [atranorin and/or norstictic acid] Buellia vernicoma (Tuck.) Tuck. [BUEVE] - crustose Local on lightly shaded sandstone or igneous rocks, on both outcrops and massive boulders, invariably associated with and often growing upon thalli of Pertusaria plittiana or Phlyctis argena. [xanthone] __________ CALICIUM Pers. (Caliciaceae) Cor ticolous or lignicolous crustose lichens with thin to obscure, grayish thalli and small, dark, urceolate to cylindrical, stipitate apothecia, photobiont Trebouxia, asci disintegrating early into a
mazaedium with numerous small, ellipsoid greenish, 1-septate spores; 3 species in the region. Reference: Tibell (1975). 1. Lower portion of exciple with brown pruina; spores 5 �m broad. 2. Pruina absent; asci often >40 �m long .................................. C. abietinum 2. Margin of exciple white pruinose; asci to 40 �m long ....................... C. glaucellum Calicium abie tinum Pers. [CALAB] - crustose Uncommon on shaded boles of Pinus echinata in open woodlands, usually growing near the base of the tree. This species has a darker, less lustrous thallus and stouter fruits than does Chaenothecopsis nana, which also occurs on Pinus echinata. Calicium glaucellum Ach. [CALGL] - crustose Apparently uncommon or overlooked; known only from decorticate, standing dead Quercus in wooded uplands. Calicium salicinum Pers. [CALSAL] - crustose Occasional on wood and bark of Quercus in lightly shaded, wooded uplands. __________ CALOPLACA Th. Fr. (Teloschistaceae) Crustose to subsquamulose lichens, with thalli ranging from nearly absent to continuous, areolate, subsquamulose, or lobate, apothecia sessile or immersed, thalline margin present or becoming obsolete, photobiont Trebouxia (sometimes considered to be "Pseudotrebouxia"), asci Teloschistestype, with 8 ellipsoid to ovate, hyaline, polarilocular spores; a poorly understood genus badly in need of revision — in addition to the 13 species currently documented from the region, and the 4 additional species included in the key and likely to occur in the region, there are several other taxa present i n the landscape, but variability among species is poorly understood. [orange species reacting K+ magenta contain anthroquinones, usually parietin] References: Wetmore (1994, 1996, 1998). 1. Thallus saxicolous. 2. Thallus leprose or granular sorediate, yellow to golden. 3. Thallus leprose, ecorticate, grayish yellow ........................... C. chrysodeta 3. Thallus granular sorediate, usually with some corticate areoles, golden to lemon yellow ...... .......................................................... C. citrina 2. Thallus not sorediate, variously colored. 4. Apothecia K+ magenta, yellow to orange, sessile; thallus K- or K+ magenta. 5. Thallus well developed, orange, K+ magenta. 6. Thallus pale yellow to gra yis h o r brown ish ye llow , t hin , c on tinuo us to rim os e; mo stly in shaded habitats; spores >12 �m long ....................... C. flavovirescens 6. Thallus orange, areolate; mostly in exposed habitats; spores 15 �m long ...[C. arenaria]
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 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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