Abstract: Seeds of the genus Eugenia L. (Myrtaceae) have interesting propagation strategies, and reactive oxygen species (ROS) seem to be related their germination seedling production. In this study, effects ROS on E. involucrata seeds were analyzed indirectly, with application N-acetyl-L-cysteine (NAC), an antioxidant. The results demonstrated that incubation in NAC suppressed and/or delayed s...

The highly polymorphic taxon Metrosideros polymorpha (‘ohi‘a) is the most abundant endemic tree in Hawai‘i, occupying a wide but fragmented range of habitats across Federal, State, and privately managed lands. Morphological character states of 342 herbarium specimens from the island of Hawai‘i distributed the five recognised varieties in ordinal space, but intermediate phenotypes were prevalent...