Mycoscience
Online ISSN : 1618-2545
Print ISSN : 1340-3540
Short Communication
Discovery of teliospores of a Cape jasmine rust fungus, Hemileia gardeniae-floridae (Pucciniales), and its occurrence in Thailand
Yoshitaka OnoIzumi OkaneJintana UnartngamChanjira Ayawong
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2021 年 62 巻 5 号 p. 336-340

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Hemileia gardeniae-floridae is an accepted name for a Cape jasmine (Gardenia jasminoides) rust fungus distributed in East Asia. The fungus name was based on uredinial anamorph collected in Taiwan in 1931. The fungus was rarely collected in Taiwan and southern Japan, and its telial stage remained unknown. Microscopic examination of the type materials of H. gardeniae-floridae and Uredo gardeniae-floridae, which was once proposed to replace H. gardeniae-floridae, resulted in discovery of teliospores on the type of U. gardeniae-floridae. The teliospores are mostly napiform and produced on a sporogenous cell emerging through host stoma. A hemileioid rust fungus, producing both urediniospores and teliospores on Golden gardenia (G. sootepensis), was found in Thailand and morphologically identified to H. gardeniae-floridae. Another Hemileia species on Forest jasmine (G. thunbergia), H. gardeniae-thunbergiae, first found in Angola, Africa, is distinct from H. gardeniae-floridae in producing smaller urediniospores than those of H. gardeniae-floridae.

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© 2021, by The Mycological Society of Japan

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