syoodevernia, spelled as heard
heard as syoodevernia
spelled pseudevernia
The p is silent but written, and the yoo is a plain oo. Pseudevernia.
What the ear did
Both halves of this rendering come from real English patterns. We drop the p in psalm, and eu really does say yoo in eucalyptus. Neither applies here, where pseud- is said soo and spelled with all four letters.
P-S-E-U-D-E-V-E-R-N-I-A
The full entry for pseudevernia covers the name itself.