154 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 
The corresponding series in C. (fig. 64, c) forms a more complicated 
structure. Studied from the base upwards, it presents the following 
parts: a basal membranous portion which helps to cover in the nectary ; 
a cushion-like expansion placed in close proximity to a projecting ledge 
of the gonophore; and a fringe of short delicate red-brown rays which 
lean towards and surround the axis. 
In M.W. this series (fig. 63, c) forms a membranous tube which 
inclines inwards until it approaches very closely to a cup-like projection 
of the gonophore, and from the upper edge of the membranous part there 
arises a circlet of almost black filaments, } in. long and directed away 
from the axis. A slightly developed cushion projects inwards from the 
top of the membranous tube. 
In B. an annular ridge (fig. 62, d) somewhat incurved downwards, 
projects into the closed cavity and forms part of the nectary. 
In C. a corresponding ridge occurs, and occupies relatively more space 
in the cavity. 
In M.W. a similar structure is present, but it exhibits no peculiar 
feature. The nectar is copious. 
GONOPHORE. 
The gonophore of B. (fig. 62, e) is massive, girt in the lower half by 
two low ledges, and narrowed very abruptly into a cylindrical shaft which 
bears the-stamens and pistil. The lower part is white, and the narrowed 
shaft dotted with red. 
In C. the base of the gonophore is stout and expands, ;', in. up, into 
a flattened collar or ledge. This structure is directed upwards a little, 
and widens at its outer edge into a rim which fits the cushion-like en- 
largement of the inner coronal appendage already described. The shaft 
narrows a little upwards, above the ledge, and is very pale green, without 
spots. 
In M.W. the gonophore dilates, } in. from the base, to forma cupulate 
ledge, the margin of which lies in close proximity to the cushion at the 
top of the membranous coronal tube. The shaft tapers upwards gradu- 
ally and considerably. Its base is thickly and regularly dotted with elon- 
gated red spots, and the upper part is white, with a few dots. 
STAMENS. 
The filaments of B. are flat, light green, thickly spotted with red on 
both upper and under surfaces. The anthers are large and bear plentiful 
yellow pollen, the proportion of normal grains being high. 
In C, the upper side of the filaments is thickly dotted with faint red 
spots. The pollen is golden-yellow and very copious. 
In M.W. the filaments are very uniformly dotted with red on both 
sides. ‘The anthers are normal in form and size, but, when they dehisce, 
instead of being loaded with pollen, as those of the parents are, the faces 
are covered with a glutinous, dull yellow exudation. In many cases 
undeveloped and shrivelled pollen grains are found embedded in this 
substance, and not seldom the grains are sufficiently well developed to 
give a brighter yellow colour to the anthers. The best examples of pollen, 
however, are probably never quite normal.* ; 
* Cf. Masters, Veg. Teratology, p. 463. 
