Parmotrema hypomiltoides (Vainio) Kurok., 1998
Parmotrema hypomiltoides is distinguished by the production of soredia, often formed in arbuscular structures (like a cauliflower), the presence of alectoronic and a‑collatolic acid (medulla KC+ rose → quickly orange, UV+ greenish blue) and the orange pigment K+ red (unidentified anthraquinone) close to the soralia and lobe apices. In P. rampoddense (Nyl.) Hale the soralia are usually marginal and linear, and the orange pigment K+ red (skyrin) is present only close to the lower cortex, in the old parts. Finally, P. mellissii (C.W. Dodge) Hale develops true isidia.
Fleig (1997) first proposed the new combination of Parmelia hypomiltoides in Parmotrema. At that time, the status of nomenclatural propositions in theses were still somewhat obscure in the St. Louis Code (Greuter et al. 2003). Nevertheless, according to the Vienna Code (McNeill et al. 2007), Fleig’s thesis is not effectively published. So the following author to propose the new combination, Kurokawa (1998, March) must be credited. Interesting to note that DePriest & Hale (1998, April-June) also proposed this new combination, since Hale already recognized this good species although not validly published. Later (Hale & DePriest 1999) they correctly used Kurokawa’s combination.
[Spielmann & Marcelli 2009].