18 



No. 23: GroAvii from kcrnol showing no indication of xonia. Plant 

 quite similar to Hickoiy King, 10 feet 2 inches high, with two whorls 

 of anchor roots, onh* slightly purplish. Two ears were inbred, being- 

 inclosed August 8, and inl)red August 14, 1899. Each of these 

 matured only a small number of kernels. One of the ears, which had 

 a light pinkish colored cob, matured about 300 kernels, all having a 

 peculiar ferruginous color which was limited to the pericarp, and 

 which resembled the color of the pericarp in the preceding hybrid, 

 though somewhat lighter. (PI. I, figs. 17 and 18.) The color was most 

 dense at the apex, and faded to yellowish -white below at the base of 

 the grain. In none of the kernels was there an}^ trace of the plumbe- 

 ous color commonly occurring in the aleurone layer of the male 

 parent. The other ear, which had a nearly white cob, matured about 

 sixtj'-seven kernels, all uniformly colored about the same as in the 

 preceding ear. Here also there was no indication of color in the 

 aleurone la^'er. 



No. 39: Grown from kernel showing no indication of xenia. Plant 

 9 feet in height; purplish green at base and with four circles of 

 anchor roots, in these characters plainly showing the effect of the 

 male parent. The ear was inclosed August 10, and inbred August 29, 

 1899, with pollen of a different h3'brid, but of the same parentage and 

 characters. Only a yery few kernels developed on a small whitish 

 cob, all haA'ing the pericarp ferruginous colored on the sides and 

 becoming whitish at the apexes. One of the kernels had a few irregu- 

 lar plumbeous-colored spots due to color in the aleurone layer. 



No. 46: Grown from a kernel which showed no evidence of xenia. 

 Plant 9 feet high; base purplish green, with three circles of anchor 

 roots. The ear was inclosed August 10, and inl)red August 14, 1899, 

 with pollen of the same stalk. Only five kernels matured on a small 

 white cob, all being ferruginous or fuscous, as in the preceding hybrid, 

 with color limited to the pericarp. No plumbeous or other colored 

 spots showed in the endosperm. 



No. 68: Grown from a kernel which showed no xenia. Stalk 10 

 feet 4 inches in height; robust, purplish green at base with six circles 

 of anchor roots and slender tassel similar to Cuzco. The ear was 

 inclosed August 16, and inbred August 22, 1899, with pollen from the 

 same stalk. Nineteen kernels matured on a small white cob. All 

 were ferruginous or fuscous, fading into white at apex as in the pre- 

 ceding, the color })eing limited to the pericarp. No plumbeous- 

 colored spots showed in the endosperm. 



In the above experiment the seed of the Hickory King, used as 

 the mother parent, had not been cultivated by the writer previous to 

 the experiment and may not have been pure, though plants from the 

 same batch of seed showed no impurity the same season or the fol- 

 lowing year. The plumbeous color of the Cuzco 759, Ayhich was 



