Phylotranscriptomics resolved phylogenetic relationships and divergence time between 20 golden camellia species.

Golden camellia species are endangered species with great ecological significance and economic value in the section Chrysantha of the genus Camellia of the family Theaceae. Literature shows that more than 50 species of golden camellia have been found all over the world, but the exact number remains undetermined due to the complex phylogenetic background, the non-uniform classification criteria, and the presence of various synonyms and homonyms; and phylogenetic relationships among golden camellia species at the gene level are yet to be disclosed. Therefore, it is necessary to investigate the divergence time and phylogenetic relationships between all golden camellia species at the gene level to improve their classification system and achieve accurate identification of them.

[Pharmacognostic identification of Cryptolepis buchanaii].

Objective: To supply basis for the establishment of quality standard of Cryptolepis buchanaii.

Method: Characters of crude drugs, microscopic characteristic as well as UV spectrum of the herb were studied.

Result: Laticifers were found in the cortex and pith of the stem; much papillary non-glandular hair was found covering the stomata in the sub-cuticle of the leaf.