1. PaDIL Species Factsheet Scientific Name: Entyloma dahliae Syd. & P. Syd. Basidiomycota, Exobasidiomycetes, Entylomatales, Entylomataceae Common Name Dahlia Smut Live link: http://www.padil.gov.au/aus-smuts/Pest/Main/139992 Image Library Smut Fungi of Australia Live link: http://www.padil.gov.au/aus-smuts/ Partners for Smut Fungi of Australia image library Queensland Government https://www.daf.qld.gov.au/ 2. Species Information 2.1. Details Specimen Contact: Roger Shivas - [email protected] Author: Roger Shivas Citation: Roger Shivas (2010) Dahlia Smut(Entyloma dahliae )Updated on 11/24/2010 Available online: PaDIL - http://www.padil.gov.au Image Use: Free for use under the Creative Commons Attribution-NonCommercial 4.0 International (CC BY- NC 4.0) 2.2. URL Live link: http://www.padil.gov.au/aus-smuts/Pest/Main/139992 2.3. Facets Columella: absent Distribution: NSW, QLD, VIC Host Family: Asteraceae Peridium: absent Sorus position: leaves Sorus shape: indistinct (includes leaf spots) Spore balls: absent Spore mass texture: agglutinated Spore shape: globose or subglobose, irregular, ovoid to ellipsoidal Spore surface ornamentation: smooth Status: Native Australian Species Sterile cells: absent 2.4. Other Names Entyloma calendulae f. dahliae Sternon Entyloma calendulae f. dahliae Viégas Entyloma dahliae (Sternon) Cif. Entyloma unamunoi Cif. Entylomella dahliae Cif. ex Boerema & Hamers 2.5. Diagnostic Notes **Sori** in leaves as round or polygonal spots, at first pale blue-green, later dark brown and drying from the centre, 3–15 mm diam., or larger by fusion. **Spores** solitary or often in small groups or chains, globose, ovoid to irregular, 9.5–17.0 (–20) × 8–16 µm, subhyaline to golden yellow; wall smooth, 2-layered, 1–4 µm thick; outer layer often unevenly thickened. **Spore germination** resulting in aseptate basidia 60–80 × 5–8 µm. Basidiospores developing in 4s at the tips of basidia, acicular, 40–60 × 3–5 µm, sometimes producing uninucleate secondary sporidia or, after fusion, dikaryotic hyphae. **Anamorph** may be present. 3. Diagnostic Images Entyloma dahliae on Dahlia sp. - BRIP Entyloma dahliae on Dahlia sp. - BRIP 27425. Scale bar = 1 cm. 27425. Scale bar = 10 µm. Host symptoms: Roger Shivas DEEDI Light micrograph: Roger Shivas DEEDI Entyloma dahliae on Dahlia sp. - BRIP Entyloma dahliae on Dahlia sp. - BRIP 27425. Scale bar = 10 µm. 27425. Scale bar = 1 µm. Scanning Electron Micrograph: Desley Tree Scanning Electron Micrograph: Roger DEEDI Shivas DEEDI Results Generated: Sunday, September 26, 2021 .