Mallendathor wishes you to sing to several Malbrethil-saplings again, to aid in their healthy development, and bring her back some Malbrethril-seeds.
'If you are willing to be of further aid, ${PLAYER}, I would ask that you seek out the counsel of Orthir, a Scholar of the Trees who has made the woods of Lothlórien, and particularly the majestic trees in and around Cerin Amroth, his particular study. Describe to him the symptoms you found on the Malbrethil-saplings and follow his advice. You will find him not far west of here, near the path.'
Orthir can be found a short distance west of Cerin Amroth, near the path.
Mallendathor wishes you to speak to Orthir, the Scholar of the Trees, to see if he knows what might heal the saplings' mallady.
The Malbrethil-saplings can be found around Cerin Brethil in Taur Hith, to the north-east of Cerin Amroth.
Orthir believes that the saplings, deprived of the everyday music of the now-wary forest, might be revived if you were to sing to them.
Mallendathor has asked you to gather Malbrethil-seeds from in the area of Taur Hith, to the north-east of Cerin Amroth. The seeds are difficult to find, but are frequently collected by the hungry shrews that scamper about the forest there.
Sendiel is in Gelirdor, south-west of the Malbrethil-trees, east of Cerin Amroth.
Orthir instructed you to tell Sendiel of your success.