TL;DR: All Cryptocarya species were superior to O. bullata with regard to bark extracts, and the utilization of leaves instead of bark would help in the management of threatened medicinal plants.
TL;DR: This study deals with seven of the eight genera represented in Australia, with a focus on Cryptocarya, Endiandra, Litsea, Lindera, and Cinnamomum.
Abstract: This study deals with seven of the eight genera represented in Australia. (Cassytha is not included because it was revised by Weber (1981)). Beilschmiedia: 11 species including 6 new species, B. brunnea, B. castrisinensis, B. collina, B. peninsularis, B. recurva, volckii and one new combination B. tooram. Cinnamomum: 5 species. Cryptocarya: 46 species including 21 new species, C. bamagana, C. bellendenkerana, C. clarksoniana, C. claudiana, C. cocosoides, C. dorrigoensis, C. glaucocarpa, C. grandis, C. leucophylla, C. lividula, macdonaldii, C. melanocarpa, C. nova-anglica, C. onoprienkoana, C. putida, C. rhodosperma, C. saccharata, C. sclerophylla, C. smaragdina, C. vulgaris, C. williwilliana and two new varieties C. triplinervis var. pubens and C. triplinervis var. riparia. Endiandra: 38 species including 14 new species, E. bellendenkerana, E. bessaphila, E. collinsii, E. cooperana, E. floydii, E. grayi, E. ionesii, E. leptodendron, E. limnophila, E. monothyra, E. phaeocarpa, E. sideroxylon, E. wolfei, E. xanthocarpa and two new subspecies E. muelleri ssp. bracteata and E. monothyra ssp. trichophylla. Lindera: one new species, L. queenslandica. Litsea: 11 species including 4 new species, L. australis, L. bennettii, L. connorsii, L. granitica. Neolitsea: 3 species.
TL;DR: Two new 6-substituted-5,6-dihydro-α-pyrones have been isolated from the bark Cryptocarya latifolia as mentioned in this paper, and two closely related dioxabicyclo [3,3,1]nonan-2-one derivatives, have been obtained in lower concentration from the same plant source.