334 
American gardening in 1806, 1817, 1818, 1819, 1821 and 1828; 
nor by Seringe for Switzerland in 1818; nor by Metzger for Ger- 
many in 1824; nor by Noisette for France in 1829. Bridgeman 
mentions one variety in 1832, as does Buist in 1851. The origi- 
nal eight-rowed form, and another like it, but with a white cob, is 
mentioned in 1853; in the Patent Office Report, 1853, the Mam- 
moth Sweet and Stowell’s Late Green are named. Schenck, 1854, 
knew two varieties; Klippart, 1858, six varieties; Burr, 1866, 
twelve varieties. In the New York Station Report, 1884, I de- 
scribed and figured thirty-three varieties. One variety, the Ruby 
Sweet, of recent introduction, has red husks. 
Sweet corn kernels are usually all corneous; sometimes, how- 
ever, a small quantity of starchy matter is visible. I suspect that 
a fuller study may unite the sweet corns as variety forms of pops, 
flints and dents. In the New York Station Report, 1884, 13!) 
mention is made of some kernels flint on the chit face and sweet 
on the opposite face. Then, again, in my Chilian collection were 
some kernels corneous at the sides and sweet on the summit. My 
Zea amyleasaccharata may perhaps be also mentioned as @ form” 
of variation. I havé observed but few monstrous growths. e 
once received a plant of Stowell’s Evergreen but 12% inches tall, 
_ well formed, of vigorous green, leafy, and bearing three unripe 
ears, two of which were kernelled. These two ears were het 
maphrodite, the ovule and stamens within the same glume. We 
have also record of podded kernels being found in a crop of this 
species. 
VII. 
Zea amyleasaccharata, the starchy-sweet corns. NA Yoee 
Sta. 1886, 60, fig. 
This species is founded upon three varieties found in the San 
Padro Indian collection of Dr. Palmer and sent me in 1886. J08 
external appearance of the kernel is that of a sweet, but examné 
tion shows that the lower half of the kernel is starchy, the uPP® 
half horny and translucent. These varieties had all a white cob, 
the kernels deeper than broad, or sub-species C. | 
1. Ear fusiform, kernels rounding towards a small stalk, 7 
inches long by 134 inches in diameter at largest part, 16-rowed- 
