1. PaDIL Species Factsheet

Scientific Name: Sporisorium chamaeraphis (Syd.) Vánky Basidiomycota, Ustilaginomycetes, Ustilaginales, Ustilaginaceae

Common Name Pseudoraphis smut Live link: http://www.padil.gov.au/aus-smuts/Pest/Main/139951

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) Pseudoraphis smut(Sporisorium chamaeraphis)Updated on 11/23/2010 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/139951

2.3. Facets Columella: present Distribution: NSW, NT, QLD, SA, VIC Host Family: Poaceae Peridium: present Sorus position: inflorescence Sorus shape: long cylindrical, globose to short cylindrical Spore balls: present Spore mass texture: agglutinated, granular, powdery Spore shape: irregular, polyhedral or subpolyhedral Spore surface ornamentation: echinate or echinulate, punctate, verruculose Status: Native Australian Species Sterile cells: absent

2.4. Other Names Sorosporium chamaeraphis Syd. Sporisorium shivasii Vánky Ustilago confusa Massee

2.5. Diagnostic Notes **Sori** in completely destroying the inflorescence, 10–20 mm long, 2–3 mm wide, partially concealed by the uppermost leaf sheath, at first covered by a brownish peridium that flakes away revealing a dark brown, initially agglutinated later granular-powdery mass of spore balls mixed with long filiform columellae.

**Spore balls** subglobose, ellipsoidal or elongate, rarely irregular, 30–70 (–80) × 30–50 (–60) µm, dark reddish brown, composed of 15–100 or more readily separating spores.

**Spores** usually subpolyhedrally irregular, more rarely subglobose or broadly ellipsoidal, 9–13 (–14) × 7–11 µm, yellowish brown to reddish brown; wall slightly uneven, 1.0–1.5 µm thick, thickest at the angles, finely and densely punctate; free surfaces of the peripheral spores in a ball finely and densely verrucose-echinulate, causing the spore profile to appear finely wavy to serrulate.

**Sterile cells** not seen. 3. Diagnostic Images

Sporisorium chamaeraphis on Pseudoraphis Sporisorium chamaeraphis on Pseudoraphis paradoxa - BRIP 7805. Scale bar = 5 mm spinescens - BRIP 26795. Scale bar = 10 Host symptoms: Roger Shivas DEEDI µm Light micrograph: Roger Shivas DEEDI

Results Generated: Thursday, September 30, 2021