Two new species from northern Myanmar

Impatiens casseabriae and Impatiens putaoensis, two new species of the genus Impatiens (Balsaminaceae) from Putao, Kachin State, Myanmar, were published on Phytotaxa.

Impatiens casseabriae and Impatiens putaoensis, two new species of the genus Impatiens (Balsaminaceae) from Putao, Kachin State, Myanmar, were published on Phytotaxa.

Impatiens casseabriae can be easily recognized by its narrowly elliptic to narrowly oblanceolate leaves, petioles up to 3 mm long, lower lateral united petals 25–40 mm long. Impatiens putaoensis differs from its closely related species I. xanthina in having light greenish yellow flowers, lateral sepals ovate to elliptic, lower lobe of united petals semilunar, upper lobe of united petals dolabrate, dorsal petal ovate to nearly orbicular, with a narrow inconspicuous dorsal crest. 

Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences (CAS-SEABRI), is an international scientific research and education institute, affiliated directly to CAS and managed by Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences (CAS-XTBG). CAS-SEABRI Myanmar center was cooperated by Forest Research Institute (FRI), Forest department (FD) and XTBG. In 2013, CAS-XTBG signed MOU with FD Myanmar to conduct biodiversity conservation research in Myanmar. Since 2014, we have carried out repeated China-Myanmar joint botanical expeditions in north Myanmar and collected numerous Impatiens species. Detailed examination of the morphology, anatomy and phylogenetic analysis reveal that two species of Impatiens are hereby described and illustrated new to science.

The specific epithet Impatiens casseabriae is derived from the abbreviation of Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences (CAS-SEABRI); noun in apposiation. The name is dedicated to its three-part mission, viz., (a) Serve China’s “the Silk Road Economic Belt and the 21st Century Maritime Silk Road” initiative; (b) Integrate efforts by CAS and international institutes to organize professional research groups and train researchers in Southeast Asian countries; and (c) Provide support to all domestic and international partners. The specific name of Impatiens putaoensis refer to the type locality, Putao, Kachin State.

This work was financially supported by a project of the Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences (Y4ZK111B01).The result published as " Two new species of Impatiens (Balsaminaceae) from Putao, Kachin State, northern Myanmar " on Phytotaxa.

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Impatiens casseabriae. A-D. Habit; E. Different parts of the flower and capsule; F. Flower (front view). Impatiens putaoensis. G, H. Habit; I. Different parts of the flower, pedicel with immature capsule and pedicel with flower (lateral view).