2312 



NYMPH^A 



25:210. R.H. 1897, p. 328. Var. azftrea, light blue, 

 and var. rosea, pink, are otherwise like the type, but 

 open earlier in the morning; they come up promis- 

 cuously from seed of the type or of one another. As 

 now cult., the var. zanzibariensis shows the greatest 

 variation in color of sepals and petals, as well as in 

 shape and number of petals and stamens. The petals 

 vary from obovate to elliptic-lanceolate. Colors shade 

 from the deep purplish blue of the type to pale azure 

 on one hand, or to purple, pink, and almost red on the 

 other. The inner surface of the sepals varies from 

 greenish white to almost pure white, or shaded toward 

 the tip with pink, red, pale blue, or deep blue-purple. 

 All combinations of sepal and petal coloring occur, 

 apparently without any correlation. Many of these 

 forms have been named, e.g., Amethyst, L. Dittmann, 

 Kobald, Countess of Warwick, Lord Brooks, N. Listerii, 

 N. z. violacea, N. z. ccelestina, etc. They can be repro- 

 duced true only by offsets. A small percentage of seed- 

 lings resemble the parents. 



10. x berolina, Hort. (N. capensis x N. zanzibariensis? 

 N. stellata, Berlin variety). Lvs. somewhat peltate, 

 orbicular-ovate, strongly sinuate, angle of lobes acumi- 

 nate; under surface dark purple; 8-16 in. across: fls. 

 deep blue, open 3-5 days, from 9 A.M. to 4 or 5 P.M., 

 6-8 in. across; sepals green outside, blue within; petals 

 15-20, narrow, acute; stamens 60-100; appendage 

 blue. Free bloomer, strong grower; sterile. Originated 

 many years ago in Germany, probably with Caspary. 



11. flavo-virens, Lehm. (N. gracilis of gardens, not 

 Zucc.). Fig. 2552. Lvs. narrowly peltate, deeply and 

 irregularly sinuate or nearly entire, suborbicular; angle 

 of lobes rounded; under surface pure green (or purplish 

 in hybrids); 15-17 in. across: fls. white, 6-8 in. across; 

 sepals pure green; petals 16-20, acuminate; stamens 

 about 60, deep yellow; outermost filaments short, broad, 

 petaloid; anthers with long yellowish appendage. Mex. 

 -^-Crossed with N. capensis var. zanzibariensis, this spe- 

 cies has yielded a progeny showing much the same varia- 

 tion as is shown by N. zanzibariensis itself. These are 

 distinguished from forms of the latter by their more 

 slender and acute petals and sepals, and smaller number 



of floral parts. They propagate easily from the tubers, 

 bloom very freely, and include the best of the tender, 

 day-blooming nympheas. The deepest blue is Gross- 

 herzog Ernst Ludwig; Wm. Stone is bright blue; Mrs. 

 C. W. Ward, pink; N. gracilis rubra, red. Several other 

 named forms have been offered, e.g., Antoine Chaize, 

 A. Siebert, N. gracilis rosea. 



2551. Nymphaea elegans. A blue Mexican water-lily. 





2552. Nymphaea flavo-virens. 



Of other members of Brachyceras, the following should be men- 

 tioned: N. Heudeldtii, Planch. Fl. 2-2 J^ in. across, pale blue: Iva. 

 2-4 in. Senegambia. N. callidntha, Conard. Fl. 4-7 in. across, 

 blue or pink: Ivs. 6-12 in. Cent. Afr. N. sulfitrea, Gilg. Fl. 2-3 

 in. across, cadmium-yellow: If. 2-3 in. S. Cent. Afr. N. Stuhl- 

 mdnnii, Schw. Fl. 5-6 in. across, sulfur-yellow: If. 10-;12 in. Cent. 

 Afr. The origin and relations of the true N. gracilis, Zucc., are 

 uncertain; it is not in cult. 



SECTION II. SYNCARPLB. 



STTBGENUS III. CASTALIA. 



A. F Is. yellow (Xanthantha and hybrids). 

 B. Spreading by runners (natural species). 



12. mexicana, Zucc. (C. mexicana, Coulter. N. flava, 

 Leitner). Floating Ivs. ovate, margin obscurely and 

 finely sinuate, dark green above, beautifully blotched 

 with brown; under surface dark crimson-brown, with 

 small blackish dots; when crowded the Ivs. rise 3-5 in. 

 above the water, are orbicular, cup-shaped by overlap- 

 ping of the straight sinus-margins, entire, 3-5 in. across, 

 dark green and shining above, under surface bright 

 green, with fine purplish brown mottlings: fls. 4 in. 

 across, raised 4-5 in. above the water, bright canary- 

 yellow, open from 11 A.M. to 4 P.M.; petals 23, grading 

 in size and shape insensibly into the stamens, which are 

 about 50, light golden yellow: rhizome erect, tuber-like, 

 discoid, plane beneath, 3-5 in. diam.; runners terete, 

 J^in. thick, white, rooting at the tip and sending up 

 Ivs.; the young plant flowers in a few weeks and again 

 sends out runners. Fla., Mex. B.M. 6917. Gn. 23:334; 

 27, p. 439; 52:445. Hardy as far north as New York 

 "in 2 ft. of water, covered with boards and a few 

 leaves." Mexican stock is stronger and blooms more 

 freely than that from Fla. Rose considers them dis- 

 tinct species. 



BB. Without runners (hybrids). 



13. x odorata var. sulphftrea (N. sulphurea, Hort.). 

 Lvs. all floating, 4-6 in. across, like those of N. odo- 

 rata, but blotched with brown: fls. light yellow, 4-5 in. 

 across, borne 2-4 in. above the water; open during the 

 morning. One of Marliac's hybrids, doubtless N. mexi- 

 canaxN. odorata. Hardy. N. odorata, sulphurea grandi- 

 flora is a more recent and stronger-growing strain. 

 G.L. 24:57. 



14. x tetragdna var. helvola (N. helvola or N. pygmxa 

 helvola ). Lvs, floating, oval, 3-4 in. across, similar in 

 shape to those of N. tetragona, blotched all over with 

 brown: fls. floating, small, yellow, 2 in. across, open 

 during the afternoon. Probably N. mexicana x N. 

 tetragona. Hardy. 



