V 
A Classification of the Varieties of Cultivated Oats 145 
found among the specimens under study are regarded merely as a mix- 
ture of Sixty-Day, introduced later. Accordingly the names Kherson 
and Sixty-Day are here applied respectively to the separated yellow and 
white forms. 
PAGE 
A. Grains yellow. 
B. Awns few in the panicle Kherson. 145 
BB. Awns numerous in the panicle Kherson Selection. 145 
AA. Grains white. 
B. Spikelets usually 3-grained. 
C. Grains short, 15-18 mm.; awns few in the panicle Sixty-Day. 145 
CC. Grains extremely long, 18-22 mm. ; awns numerous in the panicle 
Sixty-Day Selection 145 
BB. Spikelets usually 2-grained, 3-grained spikelets seldom occurring 
Early Champion. 146 
Kherson (Plate XIV, 2, and fig. 28) . — Culms erect in early growth, fine, 
stiff, either smooth or slightly pubescent at the nodes; sheaths dark green, 
glaucous; leaves colored as the sheaths, fine, narrow, short, margins smooth; 
panicles short, sparse, fine, stiff, the branches ascending; 3-grained spikelets 
numerous in the panicle, often predominating over 2-grained spikelets; 
glumes dark green and slightly glaucous at time of full heading, 9-nerved, 
in some cases 8-nerved; grains yellow, somewhat elongate, outer grains 
16-20 mm. long, long-pointed; lemma of the outer grain glabrous, with 
5-7 obscure nerves; awns usually wanting, if present short and weak; 
basal hairs seldom occurring, if present few and weak; rhachilla of the 
outer grain 2-3 mm. long, glabrous. Plants 6-9 dm. tall; extremely 
early in maturing. 
Kherson Selection. — Differs from Kherson only in the greater number 
of awns in the panicle. 
Sixty-Day (Plate XIV, 3). — Differs from Kherson only in having white, 
slightly shorter grains. 
Sixty-Day Selection (Plate XIV, 4). — Differs from Sixty-Day in its 
longer, larger, and horn-white to yellow grain, more frequent awns, occa- 
sional 10-nerved glume, and somewhat later maturing period. 
Among the mixed specimens of Kherson and Sixty-Day were found the 
following additional names: Appier, Bucium, C. I. 579, Champion, Cul- 
berson, Daubeney, Early Champion, Early Illinois, Hays, Kherson 
(Nebraska No. 1), Ray's 5610, Seventy-five Day, Sixty-Day (C. I. 165), 
Sixty-Day (C. I. 639), Sixty-Day (Minnesota 261). 
