Umbilicaria cylindrica

Ramalina siliquosa, R. subfarinacea Peltigera canina, Umbilicaria cylindrica, U. pustulata, Cladonia gr. pyxidata, Usnea muricata, H. physodes, Pseudevernia furfuracea, Parmelia conspersa, Bryoria fuscescens Hypogymnia caperata, Diploica canescens, Lecanora expallens H. physodes... 

StL Umbilicaria cylindrica (L.) Del. ex Duby Lit Rowe 1965 Huneck et al. 1995b... 

Huneck S, Schmidt J, Alstrup V (1995b) Lichen substances from subfossU and recent Umbilicaria cylindrica. Bibl Lichenol 57 231-239... 

Acetone, methanol and aqueous extracts of the lichens Cetraria islandica, Lecanora atra, Parmelia pertusa, Pseudevernia furfuracea and Umbilicaria cylindrica were found to possess effective antioxidant activities (Kosanic and Rankovic 2011a). Antioxidant activities of the tested extracts were studied by DPPH radical scavenging, superoxide anion radical scavenging and reducing... 

Rankovic B, Misic M, Sukdolak S (2007b) Evaluation of antimicrobial activity of the lichens Lasallia pustulata, Parmelia sulcata, Umbilicaria crustulosa and Umbilicaria cylindrica. Microbiology 76 723-727... 

The effect of the water content of a thallus on net photosynthesis has been noted earlier. Ried (1960b) showed that for Umbilicaria cylindrica the optimum rate was at 65% saturation but this was reduced by half when the thalli were fully saturated. He found, however, that in more loosely organized thalli, i.e., those without lower cortices (Peltigera) or with cyphellae(5ncra), photosynthesis was most rapid at 90% saturation with only a small decline above this level. He felt the decline was due to the difficulty of gas exchange in fully saturated leathery thalli such as Umbilicaria. However, the findings of Kershaw and Rouse (1971) with Cladonia alpestris, which has a hollow tubular thallus, casts doubt on this. 

Parmelia minuscula, Parmelia subobscura, Physcia muscigena, Umbilicaria cylindrica. 

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