The commission, to the extent as may be provided by ordinance, may assess penalties for the violation of its regulations and of this act so far as it relates to shade trees. Any penalty so assessed shall be a lien upon the real estate of the offender and may be collected as municipal claims are collected.

All penalties or assessments imposed under this act shall be paid to the treasurer of the incorporated town, to be placed to the credit of the commission, subject to be drawn upon by the commission for the purposes of the preceding sections.