MILLER AND STANDLEY—NORTH AMERICAN NYMPHAEA. 99 
Mohr Herbarium belongs here so far as one can tell from dried material; it was collected 
by Doctor Mohrat Mobile, Alabama. The one leaf is 19cm. long and densely pubescent 
beneath. A specimen in the herbarium of the Missouri Botanical Garden, coilected 
at San Antonio, Texas, by Gustav Jermy, may also represent this plant. 
13. Nymphaea puberula Miller & Standley, sp. nov. 
Type in the U. 8. National Herbarium, collected in Brays Bayou, about 4 miles 
south of Houston, Texas, September 6, 
1901, by TH. P. Attwater. Preserved in 
formalin. Described from the fresh ma- 
terial of this collection. 
DistrisutTion: Near Houston, Texas. 
DESCRIPTION. 
Leaves floating, rather thin, orbicular- 
ovate, rounded at the apex, widest about 
the middle, 17 to 25 cm. long and 16 to 21 
cm. wide, the sinus about 6 cm. deep, open 
but very narrow; blades smooth above, 
rather sparsely puberulent beneath; peti- 
oles and peduncles terete, almost glabrous; 
lateral nerves of the blades 14 to 16, par- 
allel and unbranched for one-half or two- 
thirds their length; flowers depressed- 
globose, 26 to 33 mm. In diameter, the Fia. 30.—Leaf outline of Nymphaea pubcrula, 
perianth when spread measuring about 60 Seale 3. 
mm.; outer sepals oblong, subtruncate at 
the apex, slightly narrowed towards the base, 20 to 26 mm. wide; inner sepals 
broader, broadly deltoid-obovate to almost orbicular, retuse, narrowed abruptly at 
the base into a claw 5 mm. long and 6 mm. wide; stamens in 5 or 6 rows, linear- 
cuneate, the anthers one and one-half times as long as the filaments; sepals in color 
canary yellow, the disk of the ovary slightly and the stamens decidedly paler, no 
trace of red anywhere present in the flowers; fruit broadly ovoid, only slightly con- 
stricted above, 31 to 38 mm. high, 32 to 40 mm. in diameter, the edges of the disk 
raised asa rim 3 to 5mm. high; stigmatic crater conspicuously depressed; stigmatic rays 
9 to 20, usually 13 to 15, 4 to 5 mm. Jong, linear, with no 
trace of a median groove, extending to within 1.5 or 2 mm. 
of the edge of the orbicular disk; center of disk umbonate; 
fruit faintly ribbed above, almost smooth below; seeds 4 to 
5 mm. long and 2.5 or 3 mm. in diameter, conspicuously 
pointed, with a sharply acute raphe; color of fruit pepper 
green, the disk yellowish. (Piares 42, D, facing p. 96; 44, 
Fia.31.—Stigmaticpatten B. Fiaures 10, a, 30, 31.) 
of Nymphaea puberula. 
. ' EXPLANATION OF PLATE 44.—A. Flower and fruit of Nymphaca sagitti- 
Natural size. 
folia. B. Fruit of Nymphaea pubderula. Both natural size. 
Here belongs a sheet in the herbarium of the Missouri Botanical Garden, collected 
in running water near Houston by Lindheimer. 
The plant suggests Nymphaea fluviatilis but the pubescent leaves distinguish it at 
once. Its pubescence throws it into the group with N. orbiculata, N. bombycina, and 
N. ovata, but the leaves are very different in outline and their pubescence is much 
more sparse, 
