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A new species, Impatiens katjae Nob. Tanaka & J. J. Verm. (Balsaminaceae), from Mandalay Region, central Myanmar, is described and illustrated. This species is similar to I. oblongata Ruchis. & Niet in floral morphology, but differs in having distinctly smaller flowers, 2-flowered axillary inflorescences, much paler pinkish-white flowers, two lateral sepals, and a spurless lower sepal. This new species is assigned to Impatiens L. subg. Impatiens sect. Uniflorae Hook. f. & Thomson. [ABSTRACT FROM AUTHOR]

Heterocyphelium triseptatum is newly recorded from Asia. The species was previously known only from South America and Africa. It was collected from the bark of a broadleaf tree at 35 m elevation in the Tanintharyi Region of southern Myanmar. An unidentified substance was newly detected for this species by thin layer chromatography (TLC). This study demonstrates the phylogenetic position of H. triseptatum in the Lecanographaceae using Bayesian and RAxML analyses of mtSSU and nrLSU sequence data. The close relationship with H. leucampyx within the Heterocyphelium clade was confirmed. [ABSTRACT FROM AUTHOR]

Specimens of lichens collected from southern Myanmar including Tanintharyi and Yangon Regions were examined. As the result of taxonomic examinations, the following 20 species were identified: Astrothelium macrocarpum, Bulbothrix subscortea, Coccocarpia erythroxyli, C. palmicola, Cruentotrema thailandicum, Dirinaria aegialita, D. consimilis, Dyplolabia afzelii, Flakea papillata, Glyphis cicatricosa, Graphis cf. caesiella, G. desquamescens, G. supracola, Malmidea bakeri, Physcia undulata, Pyrenula mamillana, Pyxine dactyloschmidtii, Sarcographa labyrinthica, Trypethelium eluteriae, and Zwackhia prosodea. All of them, except the two species of Coccocarpia, are new records for Myanmar. The ITS rDNA sequences were successfully obtained from 17 samples for 14 species. The BLAST identities for Myanmar collections with the same species in GenBank range from 89 to 100%. [ABSTRACT FROM AUTHOR]

In the course of our intensive floristic inventories for the flora of Myanmar, a new species of the genus Sapria (Rafflesiaceae), S. myanmarensis Nob. Tanaka, Nagam., Tagane & M.M. Aung is described and photographed. In addition, S. himalayana Griff. f. albovinosa Banziger & B. Hansen is newly recorded in the country. A key to the species of Sapria presently occurring in Myanmar is provided. [ABSTRACT FROM AUTHOR]