Heritable Pelorias. 225 
Peloric flowers occur as chance anomalies in a large 
number of plants. A specimen! of Scroplmlaria nodosa 
which I have had growing for the last ten years pro- 
duced them abundantly. On the other hand my cul- 
tures of Antirrhinum majiis although of twelve years 
duration and carefully guarded gave rise to no more 
than two peloric flowers, one of which is shown in Fig. 
43A. Both sprang from the middle of the racemes, that 
is, they were lateral. I have also observed occasional 
cases, of peloria on Acsculus Hippocastamim, Melam- 
pyrnm pratensc, Orobanche Galii, 1 Cytisus Laburnum , 
etc. In my cultures of 1892 a peloric flower occurred 
on a plant of Lupinus luteus. The tube-shaped peloric 
flowers of the cultivated Calceolarias are also well known. 
In these and similar cases the mode of inheritance has 
still to be investigated. In this respect the observations 
of PEYRITSCH are of great importance He has shown 
that in the case of peloria in Lconiinis Cardiaca, an an- 
nual Labiate, the anomaly can be reproduced from seed 
whether this originates from the peloric or the normal 
flowers of the same plant. 
PEYRITSCH'S memoir is one of the most valuable of 
those which deal with peloria, and is indeed an almost 
complete monograph so far as the Labiates are con- 
cerned. 2 He has also investigated the influence of the 
environment on the anomaly as occurring in a series 
of Labiates. 3 I select the following observations for 
notice here : 
1 See also W. F. R. SURINGAR, Orobanche Galii, Ned. Kruidk. 
Archief, 1874, Vol. I, p. 330, Plate 18. 
2 T. PEYRITSCH, Ueber Pelorien bci Lobiotcn, Sitzber. d. k. Akad. 
d. Wiss., Vienna, Vol. XL, Part I, 1869, p. 343, Plates I- VI; and 
Vol. XLII, ist section, 1870, p. 497, Plates I-VIII. 
s J. PEYRITSCH, Untcrsuch. fiber die Aetiologie pelorischer Bliiten- 
