Tas, 8852. 
NUPHAR PoLyYSEPALUM. ° 
Western North America, 
NYMPHAEACEAE. Suborder NyMPHARAE. 
Nupuar, Sm.; Benth, et Hook. f. Gen. Plant. vol. i. p. 46. 
Nuphar polysepalum, Engelm. in Trans. Acad. Sc. St. Lowis, vol. ii. p. 282 
(1865); B. L. Robinson in A. Gray, Syn. Fl. N. Am. vol. i. part 1, p. 77; 
species a congeneribus floribus magnis, sepalis 9 distincta. 
Herba perennis, aquatica, rhizomate crasso repente. Folia saepius natantia, 
longe petiolata, ovato-reniformia, 2-4 dm. longa, 1°5-2°5 dm. lata, apice 
rotundata, integra, glabra, sinu basali saepius aperto, 8-11 cm. profundo; 
nervi laterales numerosi, paralleli, patuli, basi flabellato-radiantes, versus 
marginem semel vel bis bifurcati. lores solitarii, longe pedunculati, 
depresso-globosi, 8 cm. diametro, circiter 6 cm.alti. Sepala 9; 8 exteriora 
valde concava, basi deflexa, circiter 1:7 cm. supra basin ascendentia, ovata, 
apice rotundata, 2°7 cm. longa, 3°5 cm. lata, extra intense viridia, intus 
viridi-lutea; sepala interiora late obovata, 4-6 cm. longa et lata, plus 
minusve late unguiculata, intus intense lutea; 3 intermedia extra medio 
viridia, margine lutea; 3 interiora intense lutea, rubescentia. Petala 
numerosa, oblonga, 1°5-2 cm. longa, 7-18 mm. lata, crassa, lutea, zona 
transversa rubra. Stamina perplurima, circiter 6-seriata, 2°3-2°4 cm. 
longa, reflexa; antherae introrsae, rubrae, demum intus purpureae, fila- 
menta lutea aequantes vel iis sub-breviores ; connectivum crassum, trun- 
catum. Pistillum 3°2 cm. longum; discus stigmatifer crateriformis, 
3°5 cm. diametro, circiter 1-2 cm. profundus ; radii 19-21. Bacca oblongo- 
ampullacea, 6-7 cm. longa, disco stigmatifero 2 cm. profundo. Semina 
plurima, anguste obovoidea, 5 mm. longa, brunnea, nitentia.— Nymphaea 
polysepala, Greene in Bull. Torr. Bot. Club, 1888, vol. xv. p. 84; Miller 
et Standley in Contrib. U.S. Nat. Herb. vol. xvi. p, 103.—T. A. Spracur. 
Linnaeus in 1753 placed both the white water-lily, 
figured at t. 819 of this work, and the yellow one figured 
at t. 1243, in the genus Nymphaea as N. alba and N. lutea 
respectively. Salisbury in 1805 separated the white 
from the yellow water lilies, using for the former the 
generic name Castalia, and for the latter alone the name 
Nymphaea. Sibthorp and Smith in 1808 arrived at the 
same conclusion as Salisbury, but retained the name 
Nymphaea for the white and used the name Nuphar for 
the yellow. Greene in 1887 pointed out for the first 
time that the names used by Salisbury have priority. 
But while some botanists have adopted the names of 
Salisbury, others, and notably Conard, the distinguished 
JULY-SEPTEMBER, 1920. 
