1919] Woodward,— Further Notes on Philotria 219 
In the pistillate flowers, the three obovate, ventricose, purplish 
calyx-lobes ascend between the three stigmas, while their tips are 
sharply incurved and form a cup-shaped depression at the base of the 
stigmas. The whitish, wider petals are recurved and nearly concealed 
beneath the broad recurved stigmas. As will be seen, the whole 
forms a minute depression, or bowl, at the surface of the water, and is 
well adapted to intercept floating grains of pollen and bring them 
into contact with the stigmatic surfaces. The calyx-lobes are smaller 
in the pistillate flowers, which are 2 mm. broad, when expanded. 
Staminodia were observed. 
Since the delicate spathe is easily ruptured, the fruit readily escapes 
and is borne away or sinks into the mud, and is hard to find. In the 
brief interval at the turn of the tide, more than twenty five specimens 
of good fruit were secured. In the former note, the fruit was called 
globose. It should be described rather as blunt plano-convex. The 
plane side is distinetly flat and has a thin, rather wide, continuous 
wing. The ridge of the convex surface is truncate and this smaller 
plane is also winged. In outline lengthwise, the fruit varies from 
circular to oblong but is prevailingly oblong. It is 1.5-1.7 mm. long 
and about 1 mm. (exceptionally 1.5 mm.) broad. 
In the twenty or more cases where it could be measured accurately, 
the tubular, two-toothed spathe was found to be 5-7 mm. long. 
The writer has not had opportunity to compare the plant with 
authentic material of Philotria angustifolia, and cannot affirm that it 
is that species but it would seem to be the same, or at least close to it. 
It is a pleasant picture to recall,—a quiet August morning, the 
incoming tide mirror-like in its smoothness and bearing on its flood 
flowers that are so seldom seen. Many of these, perhaps one hundred, 
were collected, but they were so elusive and the shore shelved so 
abruptly, that hardly one in ten could be secured of those that were 
floating past. It was a fortunate combination of cireumstances, 
which might not occur again in a season, possibly, not in a lifetime. 
New Haven, CONNECTICUT. 
Vol. 21, no. 251, including pages 193 to 208, was issued 8 December, 1919. 
