Hi, These could be leaf galls. Please refer to my previous posts on this. Also this tree does not look like Trewia nudiflora to me. My photographs of Trewia nudiflora are available in the archives of this group. With regards, Neil Soares.
--- On Thu, 5/3/12, surajit koley <surajitnotavaila...@gmail.com> wrote: From: surajit koley <surajitnotavaila...@gmail.com> Subject: [efloraofindia:115404] leaf blister on Trewia nudiflora from Hooghly To: "efloraofindia" <indiantreepix@googlegroups.com> Date: Thursday, May 3, 2012, 12:20 AM Sir, Attaching images of Trewia nudiflora leaves infested with blister disease. A search in the internet tells me that these blisters are caused by a fungus - Taphrina (http://www.britannica.com/EBchecked/topic/333773/leaf-blister). Please read this post along with my earlier posts at https://groups.google.com/forum/?fromgroups#!topic/indiantreepix/eJFCyYVnbe0 and at https://groups.google.com/forum/?fromgroups#!topic/indiantreepix/cl3zczbsij8 to establish the ID of the infected tree. Moreover, a majority of these roadside trees are infected with these blisters, some severely while others are mildly. Species : Trewia nudiflora L. Habit & Habitat : tree, roadside plantation Date : 15-03-2012, 10-22 a.m. Place : Gobra (Hooghly), WB ID help : Please see the links given in the text Regards, Surajit Koley