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Ceratocoma jacksoniae (Henn. ex McAlpine) Buriticá & J.F. Hennen

Description
Telia densely crowded on stems and leaves, causing witches' brooms of shoots, subepidermal, erumpent, cupulate, 100‒200 µm diam., reddish brown, peridium present.

Teliospores extruded in firmly united columns 1-2 mm long and 100-200 µm diam., pale yellowish to reddish brown, clavate to irregular, 29‒61 × 12‒18 µm; wall 1-1.5 µm thick, smooth.

Hosts
Host family: Fabaceae
Host genera Dillwynia
Gastrolobium
Gompholobium
Jacksonia
Nemcia
Pultenaea

Distribution
QLD, VIC, WA

Comments
Ceratocoma jacksoniae is only known from the Australian legume tribe Mirbelieae. This group comprises red and yellow flowered scleromorphic shrubs that occur mostly in the south-west and south-east of Australia.

Highslide JS
Ceratocoma jacksoniae on Jacksonia sp. - BRIP 57717.
Highslide JS
Ceratocoma jacksoniae on Jacksonia horrida - BRIP 57720.
Highslide JS
Telia of Ceratocoma jacksoniae on Jacksonia sp. - BRIP 57717.
Scale bar = 1 cm.
Highslide JS
Teliospores of Ceratocoma jacksoniae on Jacksonia sp. - BRIP 57762.
Scale bar = 10 µm.