MALVACE^ 521 



spot at the base of each petal in Sea Island cotton. The 

 latter is limited to a small area along the coast of South 

 CaroHna, Georgia, and Florida. 



Tjrpes and Varieties. — Upland is the chief American cotton. It has been 

 divided by Duggar into a number of "groups" as follows: 



1. Big Boll Group. — Plants vigorous and stocky; limbs strong, usually two 

 in number; fruiting branches strong, varying from short to long; bolls large, 

 45 to 68 of them yielding a pound of cotton; four to five locules; seeds large, 

 very fuzzy, white to brownish gray or greenish in color; lint 20 to 30 milli- 

 meters long. Examples: Russell, Truitt, Truimple, Texas Storm-proof, and 

 Jones Improved. 



2. Long Staple Group. — Plants slender; limbs two or three, sometimes ab- 

 sent, slender; fruiting branches also slender; bolls small to medium, long, 

 slender, tapering to a point, three-, four-, or five-loculed; seeds medium to 

 large, sometimes partly naked, but usually densely covered with a brownish- 

 gray fuzz; lint 30 to 45 millimeters long, percentage low. Examples: Allen, 

 Griffin, and Cook. 



3. Cluster Group. — Plants slender, often tall, limbs heavy, one to several; 

 fruiting branches very short-jointed, causing the bolls and leaves to be in 

 clusters, apparently two or three from each node; bolls small to medium, 

 four- to five-loculed; seeds small to medium, fuzzy, gray to brownish- or 

 greenish gray;, lint short, soft, and of good strength. Examples: Jackson, 

 Dickson. 



4. Semi-cluster Group. — This group resembles closely the preceding. The 

 bolls are borne singly but close together. It is probably a hybrid group with 

 strong cluster tendencies. Examples: Peerless, Defiance, Bernett, Berryhill, 

 Hawkins. 



5. Rio Grande or Peterkin Group. — Plants slender; limbs one to several; 

 fruiting branches slender, long-jointed; bolls very small to medium, three-, 

 four-, or five-loculed; seeds very small to medium, nearly smooth, dark- 

 colored, sometimes covered with a short fuzz; lint medium in length, percent- 

 age large. Examples: Peterkin, Texas Wood, Rio Grande. 



6. King or Early Group. — Plants small and slender; limbs one to three or 

 more; fruiting branches medium to short-jointed, but long in proportion to 

 plant height; bolls small, three-, four-, or five-locked; seeds small to medium, 

 fuzzy, greenish or brownish gray; lint short to medium, t,^ to 35 per cent, of 

 seed. Earliest American cottons. Examples: King, Dozier, Hodge, Mascot. 



7. Long-limbed Group. — Plants large; limbs long with long joints; bolls and 

 seeds medium to large; lint percentage low; fuzz of various shades. Exam- 

 ples: Petit Gulf, Peeler, Hagaman. This group is of little importance. . 



8. Intermediate Group. — This group includes a number of varieties with 



