The Baptist Senior Care Centers, in Brentwood, Bowie and Greenbelt, need volunteers to be "friendly visitors" 10 a.m. to 5 p.m. Mondays through Saturdays. Volunteers also are needed to assist with lunches, to lead an arts and crafts group and to assist with special events during the same times. For more information, call Ms. Pennington at 202-626-5782.

Volunteers are needed to help Rose Hoffman clear vine growth off vintage Bald Cypress Trees, most of which date from the 1920s, along Old Crain Highway. No climbing or power tools are needed, and all equipment will be provided. For more information or to volunteer, call Hoffman at 301-627-8755.

Davis Memorial Goodwill Industries needs volunteers to accept and sort clothes and other donations at their retail outlets and downtown centers. Volunteers also are needed to clean and wax cars, accompany consumers on monthly outings, be Goodwill "Mystery Shoppers," serve as an executive volunteer committee representative, dictate texts for blind consumers, serve as a teachers aide to visually and mentally impaired consumers and organize a donation drive to distribute vouchers to those in need. To volunteer, call Chris Falk at 202-636-4225, Ext. 1220.

The Crescent Cities Center in Riverdale Park needs volunteers to provide friendly visits, one-on-one sessions and exercise groups; read to residents; deliver mail; operate the gift shop; and more. For more information or to volunteer, call Monica Greene at 301-699-7889.

Food & Friends, a nonprofit AIDS service organization, is recruiting volunteers to deliver meals in Oxon Hill, Lanham, Landover, Capitol Heights and District Heights. Deliveries are made in about 90 minutes, once a week, Monday through Saturday. For more information, call Michelle at 202-863-1824.

Bethel House, a helping-hand program in Brandywine, has volunteer opportunities available, including assisting instructors with daily course work, mentoring, performing clerical duties and facilitating a class. For more information or to volunteer, call Maria Carrasquello at 301-209-5020.

CASA of Maryland seeks a computer instructor to teach basic-level skills to up to 10 students, many with limited or no previous computer experience. Volunteers must be good communicators and have some knowledge of the Spanish language. In addition, Spanish literacy tutors are needed to aid adult Spanish speakers in reading, writing and math. Tutors must be empathetic and patient Spanish speakers and will teach one or two adults weekly under the supervision of a trained teacher who will provide the curriculum. An ESL instructor is needed to teach basic-level English to adults one day a week for at least eight weeks. For more information or to volunteer, call Naomi Nim at 301-431-3721.

The National Arboretum needs volunteers with an interest in plants and their uses to become interpretative tour guides for weekend discovery stations. Volunteers would be required to commit to a minimum of one three-hour session, one Saturday or Sunday a month. The arboretum also has positions available for volunteers to conduct tours on their 48-passenger tram. For more information, call Mary Ann Jarvis at 202-245-4565.

If you would like to volunteer, please contact the agencies directly. If you would like to submit a notice for Volunteers, fax to 301-952-1397, e-mail to pgextra@washpost.com or write to Volunteers, Prince George's Extra, The Washington Post, 14402 Old Mill Rd., Suite 201, Upper Marlboro, Md. 20772.