Ustilago striiformis (Westendorp) von Niessl, 1876

on grasses

Ustilago striiformis on Holcus mollis

Holcus mollis, Belgium, prov. Antwerp, Balen, Griesbroek © Carina Van Steenwinkel

Ustilago striiformis on Holcus mollis

stripes on the upper side of the leaf …

Ustilago striiformis on Holcus mollis

and on de underside

Ustilago striiformis: spores

spores 10-12 µm

Ustilago cf striiformis on Phalaris arundinacea

Phalaris arundinacea, Belgium, prov. Luxembourg, Martué, Petit Pilon © Jean-Yves Baugnée. Identification provisional, the difference with U. echinata is only visible in the spores.

gall

Brown parallel striae run over the leaves; they later desintegrate, splitting the leaf into ribbons. Spores dark brown, 8-12 x 9-15 µm, roundish-oval, the wall densely covered with short blunt tubercles.

hostplants

Poaceae, oligophagous

Agropyron cristatum; Agrostis canina, capillaris, gigantea, rupestris, schraderiana, stolonifera; Alopecurus arundinaceus, geniculatus, pratensis; Anthoxanthum odoratum; Arrhenatherum elatius; Avenella flexuosa; Avenula pubescens; Beckmannia; Brachypodium pinnatum, retusum, sylvaticum; Briza media; Bromopsis benekenii, erecta, inermis; Bromus hordeaceus; Calamagrostis canescens, epigeios, lapponica, neglecta, purpurea & subsp. phragmitoides, varia, villosa; Cynosurus cristatus; Dactylis glomerata & subsp. lobata; Deschampsia cespitosa; Elytrigia repens; Festuca alpina, nigrescens, ovina, rubra, stricta subsp. sulcata, valesiaca & subsp. parviflora, varia, violacea; Helictochloa pratensis, versicolor; Hierochloë odorata; Holcus lanatus, mollis; Koeleria glauca, pyramidata; Leymus arenarius; Lolium perenne; Melica uniflora; Milium effusum; Ochlopoa annua; Phalaroides arundinacea; Phleum alpinum, nodosum, phleoides, pratense; Poa alpina, angustifolia, arctica, bulbosa, chaixii, compressa, glauca, media, nemoralis, palustris, pratensis & subsp, irrigata, timoleontis, trivialis & subsp. sylvicola; Puccinellia distans, maritima; Schedonorus arundinaceus, pratensis; Sesleria caerulea; Setaria italica; Trisetum spicatum.

synonyms

Ustilago agrostidis-palustris Davis, 1931; airae-caespitosae (Lindorth) Liro, 1924; alopecurivora (Ule) Liro, 1924; anthoxanthi Liro, 1938; brizae (Ule) Liro, 1924; corcontica Bubák, 1912; de-notarisii Fischer von Waldheim, 1877; kairamoi Liro, 1939; loliicola Ciferri, 1938; milii (Fuckel) Liro, 1924; phlei-pratensis Davis, 1931; poae Ito, 1936; poae-annuae Davis, 1935; poae-bulbosae Săvulescu, 1951; poae-pratensis Davis, 1935; salveii Berkeley & Broome, 1850; scaura Liro, 1924; taenia Ciferri, 1938; triseti Liro, 1939.

The synonymy of corcontica is contradicted by Spooner & Legon.

references

Ainsworth & Sampson (1950a), Almaraz (1998a), Blumer (1946a), Buhr (1964b, 1865), Dietrich (2016b), Ivić, Sever, Scheuer & Lutz (2013a), Jage, Klenke, Kruse ao (2016a), Jage, Kruse, Kummer ao (2013a), Klenke & Scholler (2015a), Kummer (2012a), Kruse (2014a), Redfern & Shirley (2011a), Savchenko, Carris, Castlebury ao (2014b), Savchenko & Heluta (2012a), Scholz & Scholz (2013a), Spooner & Legon (2006a), Tomasi (2012a, 2014a), Vanderweyen & Fraiture (2014a), Vánky (1994a), Vánky & Abbasi (2013a).

23/03/2017

pub 28.v.2017 · mod 12.viii.2017