Thirteen flavonoid aglycones were identified from aerial parts of Jasonia montana. They include eight methyl ethers of quercetagetin, one methyl ether of 6-hydroxykaempferol, and three methyl ethers of quercetin. Quercetagetin 3,5,6,7,3'-pentamethyl ether is a new natural product. Seven alkaloids have been identified from the stem bark of Alstonia coriacea from New Caledonia. They are gentianine, 10-methoxy deplancheine, vincamajine, desmethylquaternine, lO-methoxy-3-epi-~-yohimbine, corialstonine and cabucraline. Corialstonine is a novel member of the little represented quinoline alkaloid series.