Bowler, PA/ Rundel, PW 1978: The Ramalina farinacea complex in North America: chemical, ecological and morphological variation. - The Bryologist81: 386-403. [RLL List # 101-9 / Rec.# 2222] Keywords: RAMALINA/ CHEMISTRY/ ECOLOGY/ NORTH AMERICA
Abstract: 7 figures. 6 tables. ["All of the five European chemical races are present in the New Worlk in addition to unreported combinations of diagnostic acids. An analysis of morphological variation in chemical lines showed them to be indistinguishable. There is evidence of a longitudinal gradient in the abundance of chemical races, and different substrate preferences are exhibited in different regions of their distributions. The evidence we have found is insufficient to warrent a species level taxonomy among chemical lines of the R. farinacea complex in North America."]
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