Right that is my confusion, MD is the class but aren't there basically burleys and bright leafs, cigar fillers and flue cureds and such all encompassed in the MD type?
For instance couldn't you have a Maryland flue cured brightleaf?
Smokes... You are confusing the terminology.
Like Bob said, Marylands are their own of class of tobaccos derived from the same ancestries and share similar characteristics. Just as Burleys share the same basic pedigrees and characteristics. Same with Bright leafs, Orientals, etc
"Flu cured" is not an actual class of tobacco, but rather a curring method that is most commonly used on Bright Leafs. Bright leafs are often incorrectly referred to as "flu curred" varieties, imho. You could flu cure a Burley or a Maryland but that is not what defines them.
A tobacco called a cigar filler might be a Burley, Maryland, Dark Virginian, etc. Being called a cigar filler does not classify a tobacco either, but indicates what it may be most commonly used for. But that doesn't necessarily mean it won't make a good cigarette too. Many people like Havana 142 as a cigarette tobacco, but if I recall correctly it is usually called a cigar filler.
Maryland 609 is an excellent variety. It a very heavy producer with large leaves. It ripens later than MD A30, which is also a very good variety to grow. I grew both last year and again this year. MD 609 out produces the MD A30 by a small margin but the MD A30 has a little bigger leaves. It is a little more pyramidal shaped than MD 609 and is lower in overall height in my grows. A30 might be a slightly better choice for very windy areas. If you want a good heirloom Maryland variety to grow then get Catterton. It holds its own against either of the other two and ripens earlier.
Marylands are mild to medium flavored and to smoke. They can be used in pipe, cigar or cigarette blends. When ever I smoke it I think of Marlboro's. I'm betting they contain a blend with Maryland in it.
my 2 pence...
Sky