THE STRUCTURE OF CERTAIN NEW HYBRIDS. 163 
bright green or with one or both margins lilac-rose-coloured, according 
to position in bud, the upper side light lilac-rose ; the faleate process of 
the lowest sepal 2 in. long, that of the highest ¢ in. 
The petals are 1} in. long, 4 in. broad, narrow and white at the base, 
delicate rose-purple above, paler beneath ; reflexed 15° to 20° beneath the 
horizontal plane. 
The outer coronal rays (fig. 75, a) are in two whorls, directed 10° to 20° 
above the horizontal, with an expansion of 24 in.; commonly seventy- 
three in number (outer thirty-eight, inner thirty-five), the rays in both 
whorls 1 in. long, almost straight, with the apical portion (} to ;°; in.) 
flexuous ; the basal 1 in. white, succeeded in the inner rays by three, 
and in the outer by four, purple bands alternating with white; the outer 
half-length bright mauve, tipped with white. 
The second series (fig. 75, b) is in three (in some cases reduced to two) 
whorls, the external rays } in. long, rising close to the base of the inner 
rays of the outer series, and lying nearly parallel with them ; the internal 
rays } in. long, almost erect, or leaning towards the gonophore. 
The median series (fig. 75, c) forms a white, tent-like roof to the 
nectary, the upper part in close proximity to the gonophore, and bending 
upwards as a fringe composed of forked, somewhat clavate, filaments, 
4's in. long, dotted with light purple. Very short purple-spotted knobs 
rise in a circle on the inside of the bend, and lie in contact with the 
ledge of the gonophore. The annular ridge is usually very slightly 
incurved, the nectar plentiful. 
The gonophore is cylindrical in the lower portion, and at } in. from 
the base bears a small ledge which is either cupulate or sinuous. The 
shaft above is rather slender, the lower portion white, the upper portion 
green with very faint purple spots. 
The filaments are dull green, faintly spotted with purple on both sides. 
The anthers are invariably abnormal, hanging vertically, fleshy, indehiscent, 
and colourless, except for a little yellow colour shining through the trans- 
parent walls and indicating the presence of a little very poorly developed 
pollen. 
The ovary is light green, relatively large and thick-walled ; the styles 
4 in. long, massive, straight, very pale green with dull purple at the 
base ; the stigmata large, light green. No abnormality of the ovary has 
ever been observed. 
The following experiments in pollinating P. St. Rule have been carried 
out :— 
Passion-flowers supplying pollen Failure Partial success 
P. alata . 
P. alba 
P. Buonapartea 
P. cxerulea ; : 
P. Constance Elliot 
P. edulis. : 
P. Decaisneana : 
P. Impératrice Eugénie . 
P. quadrangularis . 
P. suberosa 
P. Watsoniana F 
Tacsonia Van Volxemi . 
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