Studies on the Genus <i>Nephroma</i> II. The Southern Temperate Species

Abstract

Abstract This paper reassesses the southern temperate South American and Australasian species of Nephroma , analyses their chemistry and provides a key to the 14 species and three varieties accepted. N. occultum from North America is also discussed due to its close relationship to N. microphyllum and N. papillosum . Three pairs of morphotypes are described for the first time: N. analogicum-N. chubutense, N. kuehnemannii-N. microphyllum and N. skottsbergii-N. papillosum. N. papillosum sp. nov. and N. skottsbergii sp. nov. from Chile and Argentina are newly described. N. lobuligerum and N. lepidophyllum are reduced to varietal rank. N. lyallii is placed in synonymy with N. plumbeum and a new combination N. plumbeum var. isidiatum (J. Murray) F. J. White &amp; P. James is made.