rs2758's picture

Unknown growth?

Observed: 21st November 2009 By: rs2758
S159 Neighbourhood Nature - current student
 MG 5356
Description:

Found on a leaf, suspect some form of egg case

Identifications

No identification made yet.

Species interactions

No interactions present.

Comments

charlieb's picture

Looks like a gall - what leaf

Looks like a gall - what leaf is it on?

rs2758's picture

a bit at a loss with this one

a bit at a loss with this one I'm afraid, not sure what the leaf was but the 'gall' is approximately 6 mm along its longest length. If I revisit the location I will try to ID the trees.

Exobasidium's picture

Gall

It looks like a Pontania sp gall on a willow leaf. There are many Pontania sawflies and the species of leaf often helps with the identification.