MILLER AND STANDLEY—NORTH AMERICAN NYMPHAEA. 91 
5b. Nymphaea advena erythraea Miller & Standley, subsp. nov. 
Type in the U.S. National Herbarium, in formalin, collected at Miami, Florida, by 
Mr. E. A. Brewer, April 17, 1902. 
Distrisution: Southern Florida. 
This appears to differ in no way from typical macrophylla except in having the disk 
of the fruit of a bright geranium red. Our material consists of plants preserved in 
formalin, collected by E. A. Brewer near Miami, April 17, 1902. Probably the same, 
although it is impossible to tell from material which has faded in drying, are speci- 
mens collected by J. H. Simpson in the Miami River, March 7, 1892 (no. 555). It is 
possible that some of the specimens listed under macrophylla belong here, but we are 
unable to tell from dried material. (FicureE 16, d.) 
6. Nymphaea ozarkana Miller & Standley, sp. nov. 
Type in the U. S. National Herbarium, no. 615581, collected by Mr. Otto M. Smith 
in southern Missouri along White River, in August, 1910. The material was received 
fresh. Additional material is 
mounted on sheet no. 615582. 
DistRIBUTION: Ozark region of 
southern Missouri, probably also in 
northern Arkansas. 
DESCRIPTION. 
Rootstock slender; leaf blades 
apparently floating in most cases 
but sometimes erect; petioles te- 
rete, glabrous, 3 to 11 mm. in diam- 
eter; leaves orbicular to oblong, 
bright yellowish green, glabrous 
and smooth, 12 to 20 cm. long and 
7 to 19 cm. wide, or even larger, 
those of average size measuring 
about 14 by 12 cm.,_ broadly 
rounded at the apex, the sinus 
about one-third the length of the 
blade, open, triangular, the lobes 
deltoid-orbicular or semiorbicular, 
rounded; peduncles stout, gla- 
brous; flowers depressed-globose, 
30 mm. in diameter or less; sepals 
thin, glabrous, pale green, often 
yellowish toward the tips, the Fic, 18,—Leaf outline of Nymphaea ozarkana. Scale }, 
inner thinner and sulphur yellow, 
all red within or at least tinged with red; stamens in about 5 rows, the anthers longer 
than the filaments; stigma rays 10 to 12, broadly linear, distinct, extending to within 
1.5 mm. of the edge of the disk; fruit subspherical, abruptly constricted above, 15 to 
25mm, high and 14 to 20 mm. in diameter, smooth; disk 8 to 12 mm. in diameter, 
slightly depressed, the edges vertical; seeds few, 15 to 30, large, 5 mm. long and 3.5 
mm. in the greatest diameter, ovoid, scarcely pointed, with a rather obtuse and con- 
spicuous raphe, pale brown, shining; body of fruit bright yellowish green, the stig- 
matic disk strongly tinged with orange red. (PiLate 36, G, facing p. 73. Ficures 
13, a, 18.) 
