NO. 6 COTTON OF THE HOPI INDIANS — LEW TON 9 



(9) Flowers developed on secondary fruiting branches simul- 

 taneously with those on the primary fruiting branch. 



(10) Lemon yellow color of flowers and absence of red from 

 claws of petals. 



(11) Very short style. 



(12) Smooth, unpitted surface of bolls. 



(13) Extreme early appearance of the flowers. 



TECHNICAL DESCRIPTION OF HOPI COTTON 

 GOSSYPIUM HOPI Lewton, new species 



Plant small, spreading widely, compact, branching very low. 



Stem ascending, almost prostrate, crooked or zigzag with swollen 

 nodes, coarsely hairy, yellowish-green. 



Limbs at base usually I, sometimes 2 or 3, horizontal or ascending; 

 axillary limbs very small and weak, developing later in the season 

 from the lower nodes of the leaning stem, those from the upper nodes 

 often adnate to small extra branches for nearly their entire length. 



Branches usually a pair at each node, those of each pair often of the 

 same length and diverging from each other at an angle of 90 , when 

 one is much smaller it is usually adnate with the small axillary limb 

 from the same node; secondary branches almost always developed, 

 blooming with the primary ones ; nodes much swollen ; scars left by 

 fallen leaves or flowers large and conspicuous. 



Leaves flat, rather thick, yellowish-green, usually 3-lobed, but often 

 cordate and entire or with one or two blunt lobes (the smaller leaves 

 on the secondary branches almost always entire) , the lobes broad and 

 blunt ; basal sinus very shallow and open ; soft hairy both sides, with 

 coarse hairs ; pulvinus very small, green or orange, never red ; petioles 

 short, very hairy; nectaries on leaves of both stem and branches 1, 

 close to base of leaf blade (5-7 mm. distant), small, round or oval, 

 deep, the edges but slightly raised. 



Bracts of involucre small, triangular-cordate or long-oval, hairy, 

 thick, stiff leathery and much reticulated ; lacinise 5 to 9, coarse, short, 

 hairy ; nectaries 3, very large, round, smooth ; bractlets sometimes 

 present. 



Calyx closely appressed to corolla, slightly lobed or undulate, 

 smooth ; black dots evenly distributed ; external nectaries 3, small, 

 triangular, smooth ; internal nectary with narrow band of hairs above. 



Flowers small, one-third longer than the involucre. 



Petals lemon yellow, rarely almost white, without spots on claws, 

 conspicuously black dotted. 



