• Proposed
  • 2Under Assessment
  • 3Preliminary Assessed
  • 4Assessed
  • 5Published

Cunninghamella clavata R.Y. Zheng & G.Q. Chen

Search for another Species...

Scientific name
Cunninghamella clavata
R.Y. Zheng & G.Q. Chen
Common names
IUCN Specialist Group
Chytrid, Zygomycete, Downy Mildew and Slime Mould
Incertae sedis
Assessment status
Proposed by
Leslie Freitas
Comments etc.
Leslie Freitas

Assessment Notes

Taxonomic notes

Colony initially white, becoming pale grayish after 4 days in MEA at 25ºC. Reverse cream. Rhizoids abundant, long and short, simple or slightly branched. Stolons present, coenocytic, some showing septa near the sporophore origin. Sporophores short and long, erect or recumbent, arising from stolons or directly from aerial hyphae, hyaline, smooth-walled; some containing one or more septa below the sporangium or near the basis. Main sporophore axes simple or branched, usually equal in width throughout, some enlarging in the apical direction and ending in a vesicle (3.5–)5–10(–14) μm diam.; swelling below the vesicle present. Primary branches simple, in pairs,pseudo-verticillate (≤4). Short and long branches in the same sporophore common, repeatedly (≤6×) branching, some arising close to the vesicles and growing parallel to the main sporophores ≤500 × 7.5 μm, erect or slightly curved and terminating in a vesicle. Vesicles of the main sporophores light gray, mostly clavate, commonly irregular, angular, or flattened at the apex, rarely globose or subglobose, 17–47.5 × 20–37.5 μm. Lateral vesicles with same shape as the main vesicles, (2.5–)7.5–35 × (2.5)5.5–20(–25) μm. Sporangiola globose, light yellow with greenish yellow content and echinulate, (6.5–)10–20(–23) μm diam. Sporangiospores hyaline, echinulate- walled, usually remaining within the sporangiola. Chlamydospores absent.  Zygosporangia not observed.

Why suggested for a Global Red List Assessment?

Only reported in two countries. Due to the lack of distribution I would suggest this species to be categorized as insufficient data (DD).

Geographic range

known in two countries.

Population and Trends

Population Trend:

Habitat and Ecology

Reported on soil and from faded flower. In Brazil, this species have been recorded once in the Subtropical/Tropical dry Shrubland domain.


In Brazil, this species is moslty recorded in the Atlantic Forest.

Conservation Actions

Research needed

The species, has a fragmented distribution in Brazil. Studies about its population distribution are needed.

Use and Trade


ZHENG, Y-Y.; CHEN, G-Q. A monograph of Cunninghamella. Mycotaxon, v. 80, p. 1-75, 2001.

Country occurrence

Regional Population and Trends

Country Trend Redlisted