Badania nad zawartością azotu, fosforu, potasu i magnezu w plechach Hypogymnia physodes (L.) Nyl., Parmelia sulcata Taylor i Xanthoria parietina (L.) Th. Fr.
Research content of nitrogen, phosphorus, potassium and magnesium in the thalli of Hypogymnia physodes (L.) Nyl., Parmelia sulcata Taylor and Xanthoria parietina (L.) Th. Fr.