Tubisorus pachycarpus (Syd.) Vánky & M. Lutz

Synonyms

Endosporisorium pachycarpum (Syd.) Vánky
Sorosporium pachycarpum Syd.
Tolyposporella pachycarpa (Syd.) L. Ling

Description

Sori in the axis of the aborted inflorescence, tubular, to 20–25 cm long, 0.5–1.5 mm wide, yellowish to greyish brown, at maturity rupturing longitudinally at several places between the veins, exposing the black granular-powdery mass of spore balls.

Spore balls globose, long-ellipsoidal to irregular, composed of 5–50 or more spores, apparently loose but rather permanently connected, 45–100 (–150) × 25–50 (–65) µm, dark reddish brown.

Spores subglobose, ovoid or irregular, with 1 or several flattened contact sides, 16–24 × 12–20 µm, reddish brown; wall 1.5–2.0 µm thick, with dense irregular prismatic warts c. 1 µm high on the free surface, smaller and finer on the contact sides.

Hosts
   
Host family: Poaceae
   
Host species: Mnesithea rottboellioides (R.Br.) de Koning & Sosef

Distribution

States & Territories: NT, QLD, WA