IN PLANTS HAVING IRREGULAR COROLLAS. 391 
deep cleft which divides the two lips from each other. The 
sepals are five in number and are regular in size and arrange- 
ment, one being placed centrally in the upper limb of the flower. 
The stamens are four in number and stand opposite the lateral 
sepals. The two anterior stamens are a good deal longer than 
the posterior pair. The filaments of all the stamens bear hairs, 
but the hairs of the anterior pair are considerably longer than 
those of the posterior pair. Until dehiscence the arthers cohere. 
The stamen which should stand opposite the posterior sepal, if 
the symmetry were regular, is represented only by a filament of 
reduced length, and bears no anther. The pistil stands in the 
centre of the ring of stamens. The anterior limb of the corolla 
is continued into a single, hollow, curved spur. For purpose of 
comparison with flowers having more than one spur, it should be 
noted that this single spur is formed from the tissues of the 
median anterior petal. 
ABNORMAL FLOWERS. 
Peloric. (Plate L. figs. 8-15).—As will be seen, there is 
great diversity of type among the abnormal flowers. The form 
which is perhaps more common than any other, except the 
normal, is of the well-known peloric type. In this form of flower 
the corolla is regular and tubular, having a general resemblance 
to a flower of the Cowslip. The corolla has five spurs instead 
of one; but in many cases these spurs do not all project from 
the tube, but some or all of them may be invaginated into it. 
This invagination may be complete or partial. In these peloric 
flowers the fifth stamen is always developed and bears an anther. 
The five stamens are of equal length, and the hairs on all of 
them are similar. The anthers are coherent above the stigma. 
The petals of peloric flowers are generally yellow, being irre- 
gularly blotched with purple, but a few were found which were 
uniformly pale purple and many were seen which were entirely 
yellow. Peloric flowers having 6 sepals, 6 petals, and 6 stamens 
are not rare: in all of these the number 6 occurred in the 
Stamens as well as in the corolla. 
A few flowers were found having five similar yellow petals, 
which were not united posteriorly to form a tube, but were 
arranged as a single anterior lip. 
An attempt was made to see whether these peloric flowers 
generally set seed or not, but the result was not very reliable, 
LINN. JOURN.—BOTANY, VOL. XXVIII. 2K 
