MILLER AND STANDLEY—NORTH AMERICAN NYMPHAEA. 89 
In the National Herbarium there is an interesting specimen collected at Lake Ellis, 
North Carolina, July 3, 1908, W. H. Brown 72. The leaf blades are 11 to 17 cm. long 
and only 6.5 to 10 cm. wide; in outline they are lance-ovate and very acute at the apex; 
the sinus is very narrow or closed; flowers 35 mm. in diameter. Unfortunately the 
material is too scanty to show whether the form is anything more than an individual 
variation. 
Torrey and Gray’s subspecies tomentosum was based upon a specimen collected by 
Thomas Nuttall in the vicinity of Philadelphia and labeled by him Nuphar tomen- 
tosum. We have examined this specimen in the herbarium of the Philadelphia 
Academy of Science. 
The “pubescence’’ con- 
sists merely of algee or 
some similar low organ- 
isms which cover the 
lower surfaces of the 
leaves and the petioles. 
At present a part of the 
surface has become com- 
pletely glabrous, owing 
to the falling away of the 
artificial covering. This 
same phenomenon we 
have observed in other 
herbarium specimens. 
In the National Herba- 
rium is a specimen of 
some cultivated Castalia, 
which at first glance ap- 
pears to have coarsely 
dentate leaves. On 
closer inspection it js 
“seen that the teeth are 
masses of alge which 
have adhered to the edge 
of the blade. 
5a. Nymphaea advena 
macrophylla (Small) 
Miller & Standley. 
Nymphaea macrophylla 
Small, Bull. Torrey Club 
25: 465. 1898. 
Type Locauiry: The 
type, in the herbarium Fic. 17.—Leaf outline of Nymphaca advena macrophylla. Scale }. 
of Columbia College, was 
collected in August, 1894, in the vicinity of Eustis, Lake County, Florida, by Geo. 
V. Nash (no. 1751). 
DistrisuTion: Northeastern Florida. 
DESCRIPTION. 
Habit of leaves as in N. advena; blades 28 to 40 cm. long and 20 to 27 cm. wide, 
glabrous, ovate, acute or at least acutish, with a V-shaped sinus 8 to 13 cm. deep, the 
lobes triangular, acutish; no submersed Jeaves known; flowers depressed-globose, 32 
