Taxonomy Nymphaea elegans. 131 



N. serrata, Muller, fid. original specimen, coll. F.. Miiller, July 15, 1855, Arnheim's Land, Aus- 

 tralia, in hb. Kew. 



N. repanda, Muller, fid. original specimen, coll. F. Muller, July 16, 1856, Arnheim's Land; also 

 Head of Sturt's Creek, Australia; both in hb. Kew. 



N. versicolor, Muller, fid. original specimen, coll. F. Muller, July 15, 1856, Arnheim's Land, Aus- 

 tralia, in hb. Kew. Not Roxb. 1809. 



N. stellata, Muller 1861, fid. original specimens, sent by F. Muller from Rockingham Bay, Queens- 

 land, in hb. Munich; from Escape Cliffs, N. Australia, coll. W. Halls, in hb. Kew; from 

 Ba r ron River, Queensland, coll. W. Sayer, in hb. Paris ; also in hb. British Museum. Not 

 Willd. 1797. 



N. Brownii, F. M. Bailey, 1899, fid. original specimen in hb. British Museum. 



Geographic Distribution. Queensland, Arnheim's Land, Australia. 



Notes. Caspary considered this merely a small form of N. gigantea; but the 

 paintings of both types made by Mrs. Rowan in the native habitat, which I saw at the 

 Philadelphia Museum, April 16, 1901, show the marked peculiarities cited above, which 

 certainly entitle the plant to varietal rank. Mrs. Rowan considers it a very distinct 

 type, and says it is restricted to the Cape York Peninsula, a region practically unin- 

 habited by white people. We are especially fortunate in having opportunity to repro- 

 duce Mrs. Rowan's painting from the original, which is now the property of the 

 University of Pennsylvania. Examination of the European collections gave fully 

 conclusive evidence on the rank of this form. (Cf. also its synonymy.) 



Subgenus 2. BRACHYCERAS Casp. 1865, 1878, 1888. 



Carpellary styles present, short, stiff, and fleshy. Stamens numerous, following 

 the petals in order on the torus directly or without much interval ; exterior anthers 

 long, more or less strongly appendaged with a process of the connective, the corre- 

 sponding filaments being flat and more or less expanded. Seed smaller. Twelve spe- 

 cies of world-wide distribution in the tropics. 



Cyanea and part of Lotos DC. 1821 b. 



Cyanea (mostly) Planchon 1852 b, 1853 b. 



Section I. Appendiculatae Lehmann 1853a (in part). 



Nymphaea elegans Hook. (Plate IV; Fig. 53.) 

 Leaves entire or slightly wavy at base, narrowly peltate, broadly ovate to ovate- 

 orbicular; under surface dark purple; about 18 cm. long. Flower 7 to 13 cm. in diam- 

 eter, pale violet, open from 8 a. m. to 1 p. m. Buds ovate. Sepals marked with black 

 lines and dots. Petals 12 to 20, ovate, obtuse. Stamens about 100, stout, yellow; 

 appendage minute; filaments narrow. 



Nymphaea elegans, Hooker 1851, fid. original specimen, cultivated at Kew, from Texas, in hb. 

 Kew. Revue Horticole 1851 b. Paxton 1853 b. Sterns 1888. Tricker 1897. Conard 1901 a. 

 Castalia elegans, Greene 1888. Lawson 1889. Rose 1895. 

 Nymphaea Mexicana, Gray 1850. Not Zucc. 1832. 



Description. Flower 7 to 13 cm. in diameter, open widely on three successive 

 days from 8 a. m. to 1 p. m. ; odor sweet, moderately strong. Bud ovate, obtuse or 

 rounded at apex. Peduncle terete, slender, stiff, rising 12 to 18 cm. above the water, 



