CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM


We hereby consent to the incorporation by reference in this Registration
Statement on Form N-1A of our report dated October 26, 2005, relating to the
financial statements and financial highlights which appear in the August 31,
2005 Annual Report to Shareholders of Columbia Mid Cap Growth Fund, Inc., which
are also incorporated by reference into the Registration Statement. We also
consent to the references to us under the headings "Financial Highlights", and
"Independent Registered Public Accounting Firm", in such Registration Statement.


PricewaterhouseCoopers LLP


Boston, Massachusetts
December 23, 2005