The Bismark apple is from New Zealand, harvests in mid-season, and is often confused with an Alexander apple. This apple is white in color with a pale green blush. It has an acidic flavor and cooks well.

Black Amish

The Black Amish apple originated in Eastern Kentucky and is dark purple in color.

Black Gilliflower

The Black Gilliflower is also known as the Black Sheepnose. It is estimated to have originated in Connecticut in the 18th century. Harvest time for the Black Gilliflower is in September and October. This apple is oblong in shape and the dark red color looks almost black. A very mild, yet sweet flavor.

Black Oxford

The Black Oxford comes from 1860's Maine and harvests in October with it being in season in November. This apple is round and purple with a black bloom.

Blackjon

The Blackjon apple was found in 1929 in Wenatachee, Washington, but it wasn't introduced to people until 1931. Bright red in color.

Blacktwig

The Blacktwig apple is from 1868 Arkansas and harvests late in the season. It is a large apple with green skin that flushes red. Very tart.

Blenheim

The Blenheim apples is also known as the Blenheim Orange, Rosy Blenheim, and the Woodstock Pippin. It comes from the Blenheim/Woodstock area of England as far back as 1740. Harvesting time is in October and it keeps until January. This apple is large, yellow and has reddish blush. A nutty flavor.

Blue Pearmain

The Blue Pearmain has been in existence since 1833, perhaps even earlier. It is in season from November to February and is a red color with a blue bloom. Mild, sweet, acidic flavor.

Blushing Golden

The Blushing Golden harvests in mid-October and is yellow with half of the apple covered with an orange-pink tint. It is resistant to buising and does not shrivel.

Boiken

The Boiken apple is from 1828 Germany and is in season from December to April. Medium in size, this apple is yellow with a red hue.

Bolero

The Bolero apple is from England and harvests in August. It is green in color with a yellow blush. This apple has a crisp, acidic taste.

Bonnie Best

The Bonnie Best apple is from Cooksville, Wisconsin and harvests in early October. It is quite large with a light red stripe. Keeps well.

Bonza

The Bonza apple is large, red, and resembles a Jonathan apple.

Bottle Greening

The Bottle Greening apple was a chance seedling that was discovered in the 1800's along the New York and Vermont border. It is in season from October to February and has a tough skin. However, it bruises easily.

If you missed the earlier articles on all the varieties on apples, you can read them here:

Varieties of Apples: "A" to "Am"

Varieties of Apples: "An" to Az"

Varieties of Apples: "B" to "Be"

Sources:

All About Apples: Apple Varieties,http://www.allaboutapples.com/varieties/var_b2.htm

Wikipedia: List of Apple Cultivars,http://en.wikipedia.org/wiki/List_of_apple_cultivars