Volume 18, Issue 2 (1999)This issue of Volume 18 was published 20th October 1999.
Laboulbeniales on semiaquatic Heteroptera. VIII. Monandromyces, a new genus based on Autophagomeces microveliae(Laboulbeniales)
Richard K. Benjamin
Potential utility of chloroplast trnL (UAA) gene intron sequences for inferring phylogeny in Scrophulariaceae
C. Edward Freeman and Ron Scogin
Articulated cork in Calotropis procera (Asclepiadaceae)