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These terms define your current search. Click the × to remove a term. Natural Resources, Earth and Environmental Sciences: geology > sediments > pyroclastic materials > volcanic lava × 2 results Group by: Natural Resources, Earth and Environmental Sciences   (Click to View) Assessment of hybridization and introgression in lava-colonizing Hawaiian Dubautia (Asteraceae: Madiinae) using RAPD markers American journal of botany (Click to View) Morella cerifera invasion and nitrogen cycling on a lowland Hawaiian lava flow Biological invasions