Pyrenulales

Pyrenulales

[pī‚ren·yə′lā·lēz]
(botany)
An order of the class Ascolichenes including only those lichens with perithecia that contain true paraphyses and unitunicate asci.
References in periodicals archive ?
Graphidales, Pyrenulales, and Arthoniales--do ascend in fair numbers to about 3000 m, however.