322 Nutrition and Selection. 
color of Amarantus tricolor, the variety of whose color 
is its only claim to popularity, is dependent on external 
conditions. 1 
Zca Mays forms more bi-sexual panicles and ears 
when the seed has germinated at a high temperature. 
Ranunculus bulbosits semiplenus ( 23, p. 258) forms 
more petals if it germinates in the summer than if it 
germinates in spring. Summer wheat can, as is well 
known, be transformed into winter wheat by sowing it 
in autumn, although, as it appears, only in a small pro- 
portion of individuals. 2 
Amongst the cultivated Begonias we sometimes find 
bi-sexual flowers which are the result of the appearance 
of stamens in female flowers; in them the inferior fruits 
become more or less completely superior and other anom- 
alies make their appearance. 3 For the last 12 years I 
have grown such a specimen of Begonia Scdcni (B. boli- 
I'iensis X B. Pearcei) which I have gradually multiplied 
by dividing its tubers. In the summer of 1890 I marked 
the tubers which produced the smallest numbers of such 
transformed flowers and planted them out in 1891 into 
a bed which was more richly manured and better situated 
than the rest. As a result of this they produced a con- 
siderably larger number of anomalous flowers than the 
control specimens. Lupinus lutcus sometimes produces 
twisted inflorescences. 4 Seeds of such flowers collected 
in the field and sown in the garden did not repeat the 
anomaly; but in the next generation it reappeared as the 
1 VILMORIN-ANDRIEUX, Lcs fteurs de pleine terre, p. 64. 
2 MONNIER, cited by DARWIN, Variations, I, p. 333. 
3 P. MAGNUS, Sitzber. d. bot. Vcr. d. Prov. Brandenburg, XXVI, 
\, p. 72, Table II, and PENZIG, Tcratologie, I, p. 500. 
4 Monographic ' der Zwangsdrchnngcn, Jahrb. f. wiss. Bot., 1891, 
Vol. XXIII, p. 107, PI. IX. 
