MILLER AND STANDLEY—-NORTH AMERICAN NYMPHAEA. 85 
their bases abruptly narrowed to a short claw about 6 mm, wide, truncate or retuse 
at the apex; petals about 20, cuneate-oblong, 8 mm. long and 3 to 5 mm. wide, trun- 
cate or retuse at the apex; stamens usually in 7 rows, varying from 5 to 8, about 35 to 
the row; filaments cuneate-linear, 10 mm. long, 2 mm. broad at the tip; anthers a 
little more than half as long as the stamen; outer sepals rich oil green outside, 
lighter within and occasionally but rarely tinged with red; inner sepals clear yellow 
throughout except at the tips, there tinged with green, the inner side occasionally 
tinged with purplish red;! petals yellow like the inner sepals, 
usually tinged with red; filaments dull red except the ex- 
posed tip, this yellow; anthers and pollen yellow; stamens 
occasionally clear yellow throughout, all becoming dull red 
throughout in age; fruit subglobose, about 40 mm. high and 
50 mm. in diameter (the height usually less than the diam- 
eter, but this character not constant), with conspicuous 
longitudinal ribs extending its entire length; stigmatic disk 
orbicular, entire, faintly undulate, strongly concave; stigma 
rays distinct, varying in number from 9 to 23, but usually 
15, 16, 17, or 18, 7 to 8 mm. in length and about .75 mm. wide, 
extending to within about 2 mm. of the edge of the disk, 
without a median furrow; capsule oil green, the stigmatic region abruptly lighter 
and more yellowish; seeds elliptical or obovate, slightly flattened laterally, with a 
prominent raphe, 6 mm. long, greater diameter 5 mm., lesser diameter 4 mm. 
(Piates 35, C, facing p. 72; 36, E, facing p. 73; 39, 40. Ficurzs 14, 15, 16, b.) 
Fig. 15.—Stigmatic pattern 
of Nymphaea advena, 
Natural size. 
EXPLANATION OF PLATES 39, 40.—PI. 39, Nymphaea advena, at Monteers Pond, Indiana, photographed 
by Mr. Robert Ridgway. PI. 40, vernal stage of Nymphaea advena, at Four Mile Run, Alexandria County‘ 
Virginia; photographed by Mr. Gerrit S. Miller, jr., (A) April 20, (B) May 4, 1902. 
Specimens examined: 
In formalin— 
New York: Lake Grove, Long Island, 1901, A. H. Howell; Sing Sing, 1901, 
E. Acker; near Croton, 1901, Van Cortlandt. 
New JERSEY: Whale Pond Creek, Monmouth County, 1902, M. W. Lyon; Milburn, 
Essex County, 1902, Lyon; arm of Newton Creek, Collingswood, Camden 
County, 1902, S. N. Rhoads; Centerton, 1900, G. S. Miller; Haddonfield, 1907, 
Rhoads, 
PENNSYLVANIA: Erie, 1906, 8S. E. Bacon; same locality, 1902, Bacon; Philadelphia, 
1901, Witmer Stone; Meadville, 1902, H. C. Kirkpatrick. 
MARYLAND: Pocomoke City, 1902, W. P. Hay; Havre de Grace, 1902, Shull. 
Vireinta: Holmes Run, Fairfax County, 1901, G. S. Miller; Luray, 1901, Lewis 
Willis; Clifton, 1901, Miller; Four Mile Run, Fairfax County, 1901, Miller. 
West Virernia: Marlinton, 1902, W. B. Kellerman. 
Nort Carona: Raleigh, 1901, Brimley Brothers; Hendersonville, 1901, Clayton. 
Texas: Fort Clark, 1901; Del Rio, 1901, Franks. 
Outro: Buckeye Lake, Licking County, 1902, W. A. Kellerman; Cadiz Junction, 
_ _Harrison County, 1902, W. A. Kellerman; Sandusky, 1903, M. T. Cook. 
InpDIANA: Merrillville, 1903, Shull; Winona Lake, 1902, C. A. King. 
InurNois: Mount Carmel, 1901, Schneck. 
MicuicANn: Northville, 1901, U. S. Fish Commission; Washtenaw County, J. B. 
Steere. 
1 Among 137 flowers collected at Four Mile Run, Virginia, May 18, 1902, there were 
16 with purplish-blotched sepals, 121 with red on stamens, and none with red on the 
disk. ; 
