1921] SCHAFFNER—HEMP 203 
of the staminate plants. Probably if the root systems had also 
been weighed the ratio would have been very nearly 2:1. Appar- 
ently there is very little if any difference in the ratio between the 
dry matter and water of the carpellate plants and that of the 
staminate plants. On account of the décided vegetative dimor- 
phism of the winter plants, a number of interesting differential 
physiological studies might easily be carried on with the hemp. 
TABLE I 
WEIGHTS OF 12 PLANTS AT BEGINNING OF ANTHESIS 
CARPELLATE STAMINATE 
PLANT - 
NO. * NO. 
Green weight | Dry weight Water Green weight | Dry weight Water 
I 3-35 gm.| 0.58 gm.| 2.77 gm ae I.9I gm.} 0.38 gm.| 1.53 gm. 
3 3.01 ©.62 2.36 Pe 2.2 0.34 I.QI 
5 2.70 0.52 2.18 she 1.47 0.31 1.16 
“7. 2.42 0.44 1.98 a 2.17 O.4I 1.76 
9. 2.95 0.53 2.42 107. 0.87 0,17 0.70 
Ir 2.58 0.45 2.13 ce oe 1.03 0.20 0.82 
Total} 17.01 3.14 13.87 Total} 9.70 1.81 7.80 
Av Aver- 
age.; 2.835 523 2.31% age 1.616 301 1.315 
Abnormal, irregular, and bisporangiate flowers 
Plots 1 and 3 were mainly studied for irregularities in the 
flowers. These were so remarkable that. chief attention was 
diverted to their morphology in relation to sexual expression, while 
the remaining greenhouse plantings were studied for sex ratios 
and sex reversals. In all the winter plantings there was a great 
assortment of sexual expression in the flowers. One could find 
almost any conceivable combination of perfect and imperfect 
sporophylls. Figs. 1-12 were selected, not as an exhaustive set 
of examples, but simply to indicate the general character of the 
confusion displayed by the spore bearing organs. They show 
that any attempt to bring these sexual expressions within the 
bounds of Mendelian heredity would be out of the question. 
Fig. 1 is a typical staminate flower from a staminate plant, and 
fig. 2 is a normal carpellate flower, with the sheath cut open, 
