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I have selected DD because for such a large distribution I would expect a larger number and more recent observations. There also very little available information, and lack of photos or drawings of the mushroom body - there is a photo in Wu and Chou (1995) but it seems to be dry (10.6693/CAR.1995.6.7) - you can also find photo here: https://www.bcrc.firdi.org.tw/fungi/fungal_detail.jsp?id=FU201505262133 and voucher photo here: https://catalog.digitalarchives.tw/item/00/43/99/58.html
Dichopleuropus spathulatus is a species with an apparent very wide distribution, as it has been found in Singapore, Taiwan, China, the United States of America and Brazil. However, it is only known from 6 sites and has not been recorded in 4 of these locations in over 50 years. Very little information is available on its habitat preferences and ecology. While it is possible that this species remains widespread but poorly documented, the lack of recent records in most known locations could imply that its distribution and population size are now much more restricted. More recent records are needed so the species is assessed as Data Deficient (DD).
Dichopleuropus spathulatus is the type species of Dichopleuropus, a monotypic genus (Index Fungorum, 2023). It was described in 1965 and is partly characterized by its microscopic characteristics, namely its hyphal system. (Quin et al. 2009)
This species has been documented in Singapore, Taiwan, the United States of America (Florida) (Wu and Chou, 1995), Brazil (Mato Grosso) (Welden, 1993) and China (Yunnan Province) (Quin et al. 2009).
D. spathulatus has only been found in approximately 6 sites. Its most recent documented observations were in China in 2005 (Quin et al. 2009), and Taiwan in 1993 (Wu and Chou, 1995), while observations in Singapore, United States of America and Brazil are more than 50 years old (Welden, 1993). More current records and information on habitat preferences is needed to estimate its current population size and trends.
Population Trend: Uncertain
D. spathulatus is an annual fungus and has been found growing on the ground (Quin et al. 2009).
Unknown.
Directed search efforts and more research are needed to understand the current distribution, habitat preferences and ecology of this species. Molecular analysis could also be useful to confirm the taxonomic position of this monotypic genus.
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