title: Disjunct foliar veins in hawaiian euphorbias.
abstract: Isolated segments of veins occur in the leaf mesophyll of several Hawaiian species of Euphorbia. These anomalous structures appear to consist entirely of tracheids and are a normal feature of the anatomy of species native to mesic and wet areas, but not to xeric, dry habitats.
authors.forename: D
authors.initials: D
authors.lastname: Herbst