Lepraria

	Lepraria straminea Vain.


	Nomenclatural data
	In Résult. Voyage S. Y. Belgica, Botan., p. 40 (1903); type: (TUR—holotypus).
	Morphology
	Thallus crustose, with granular appearance; pale yellowish green; very thick (up to 6 mm); shape usually irregular, to c. 5 cm, fused patches up to several meters; lobes absent; cortex present on soredia; medulla absent; prothallus sometimes present, thin, smooth, up to c. 2 mm broad, whitish; squamules absent; soredia abundant, coarse, 130-160 µm in diam.; projecting hyphae absent; isidia-like structures absent.
	Chemistry
	Usnic acid, zeorin. K–, C–, KC–, Pd–.
	Remarks
	Chemically similar taxa include L. coriensis, L. ecorticata, L. texta, L. usnica and L. leuckertiana that produce usnic acid and usually zeorin, but are different morphologically. L. straminea is distinguished primarily by its corticate granules and also the thallus without lobes and medulla. It is considered an Antarctic endemic; it dubiously belongs to Lepraria (Øvstedal & Lewis Smith 2001).
	Ecology and distribution
	Substrate and ecology: mosses, peaty soil; open habitats. Distribution: Antarctic endemic.

Species pages available 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