Key to Lepraria

	World key to the Lepraria species
	Identification key of 60 species and infraspecific taxa, maximum length – 67 steps

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	Thallus margin distinctly lobed, lobes with raised rim, predominantly over 0.5 mm wide. Protodehydroconstipatic and constipatic acids present (in major to trace amounts)
	Thallus margin diffuse or lobed; if lobes present, without the rim, less than 0.5 mm wide. Protodehydroconstipatic and constipatic acids absent

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	Species in the key achariana \| adhaerens \| alpina var. alpina \| alpina var. zeorinica \| atlantica \| atrotomentosa \| aurescens \| bergensis \| borealis \| caesiella \| caesioalba var. caesioalba\| caesioalba var. groenlandica \| celata \| coriensis \| crassissima \| diffusa \| eburnea \| ecorticata \| elobata \| friabilis \| gelida \| goughensis \| granulata \| humida \| impossibilis \| incana \| isidiata \| jackii \| lanata \| lecanorica \| leprolomopsis \| leuckertiana \| lobata \| lobificans \| membranacea \| multiacida \| neglecta \| neojackii \| nigrocincta \| nivalis \| normandinoides \| nylanderiana \| obtusatica \| pallida \| pulchra \| rigidula \| salazinica \| santamonicae \| santosii \| sipmaniana \| squamatica \| straminea \| sylvicola \| texta \| toensbergiana \| toilenae \| umbricola \| usnica \| vouauxii \| xerophila