1917] 
PRING—-HYBRID NYMPHAEAS 7 
the sepals show a decided increase over N. ovalifolia, whereas 
in М. са ай Лога they are entirely absent. The seed pods 
contain a very low percentage of fertile seed compared with 
either parent. The main air-canals in the peduncle suggest 
N. ovalifolia. The leaves are fairly intermediate, sub- 
orbicular, with deeply sinuate margins, and the under side 
shows an increase of maculations over N. ovalifolia, from 
which parent they are transfused. The red color on the under 
side of the seedling leaves suggests N. castaliiflora, this fac- 
tor, however, being lost in the developed leaves of the type 
plant. The leaves of the variety marmorata show a reddish 
pink color, with the marmorations intensified in the upper sur- 
face. This intensifying of some factors which are only trans- 
fused from a single parent is interesting. Previously de- 
scribed hybrids which contain N. caerulea, the Egyptian blue 
lily, show the same peculiarity. 
Description.—F lowers 10-11 inches across, opening from 5 
to 6 successive days from 6:30 A. M. to7 P. M. during August, 
4-8 open at one time, extremely fragrant; bud narrowly 
ovate-acuminate, dark green prominently striped with dark 
purple; peduncle rising 1 foot above the water, in cross-sec- 
tion showing 7-8 main air-canals circled by 14-16 smaller 
ones, these again irregularly surrounded by still smaller air- 
canals; sepals 4-wedged, ovate, 43 inches long, 14 inches wide, 
slightly hooded at the apex, thick, fleshy in texture, outer sur- 
face dark green prominently striped with dark purple, lav- 
ender-blue on the margins, inner surface lavender-blue, light 
green at the base, showing 10-15 nerves; petals 30-35, com- 
prising three whorls; the outermost lanceolate, obtuse, 44 
inches long, 1 inch wide, with the outer surface lavender-blue 
bleaching to white, channeled with green and striped with 
purplish lines, thickish in texture except along the margins, 
6-8-nerved, and the inner surface lavender-blue bleaching to 
white; the inner whorls lanceolate, acute, becoming shorter 
toward the center, lavender-blue bleaching to white; stamens 
170-180; outermost whorl 24 inches long, with appendages 
ovate-oblong at the base, yellow, linear above, lavender-blue at 
the apex; inner whorls becoming shorter and narrower toward 
