OlSr NYMPH^ACEiB. 113 



aud careful observation of the plants in cultivation at Berlin, distinguished odorata by the 

 pollen grains being constantly aculeate, stipules subreniform, emarginate, appressed to 

 the rhizome, flowers remaining strongly fragrant as long as open, whereas those of alba 

 are only at first slightly fragrant. 



The names of this plant have been used as examples, in the recent discussion 

 on botanical nomenclature in the Journal of Botany. Mr. Britten (Kensington) in- 

 sists upon the adoiDtion of Salisbury's specific term pudica. M. Alphonse DeCandolle, 

 who supports the rule of retaining the specific name when a species is transferred to 

 another genus, adheres to the original term odorata, which Salisbury had no reason to 

 change ; "je n'ai jamais hésité sur ce point," (Journal of Botany, Oct., 1888, p. 289.) Mr. 

 Britton (Columbia College) also argues for this view (ibid., p. 295). His Kensington 

 opponent is inexorable, and will not have the plant called " Castalia odorata (Dryand.) 

 G-reene," as it is styled in the New York List. There is no necessity, however, for calling 

 it by that phrase, the proper name being Castalia odorata, "Woodv. & Wood. Woodville 

 and Wood were the botanists who first formally recognised Salisbury's genus, and the 

 first to connect his generic name with the correct specific one. 



Var. MINOR. Chiefly distinguished from the usual forms of the species by the small 

 size of the leaves, with widely divergent basal lobes, and much smaller flowers. 



Nymph, odorata var. rosea. Pursh, Fl. N. A., p. 369. 



N. odorata, var. minor. Sims, Bot. Mag., t. 1652. Torr. aud Grr., Fl. N. A., 1, p. 5*7. 

 Gr., Man., 5 éd., p. 56. Watson, Bibl. Index, p. 38. Macoun, Cat., p. 32. 



N. minor. DC, Syst., II, p. 58. Prod., I, p. 116. Hook., Fl. B. A., I, p. 32. 



I have examined specimens of this variety, which is very much rarer thau the 

 common form, in the Herbarium of the G-cological Survey of Canada at Ottawa, as 

 follows :— Near Belleville, Ont., Jïily, 1%^^.— Macoun. Mirrnaibi Kiver, Out., July, 18*79.— 

 Dr. Bell. Severn Eiver, Kewatin, July 1886. — Mr. James M. Macoun. 



This species has apparently a very wide range, extending, according to Torrey & 

 G-ray, "throughout N. America east of the Rocky Mountains," and possibly some of the 

 described tropical forms are closely related to it. In Wal^sers' Annales Botanices Syste- 

 maticse, IV, p. 16*7, habitats are assigned as follows. "Delaware, Michaux, in Herb., 

 Mus., Paris, (sub nom. N. albœ). Halifax, in Nova Scotia, Smith in Herb. Delessert. 

 Texas, Drummoud, ibid, etc." It is abundant in many of the numerous lakes through- 

 out Nova Scotia, especially in those whose comparatively still waters overlie deposits of 

 the infusorial black mud, brought in by tributary streams, which by maceration slowly 

 passes into diatomite. Abundant about Kingston, Bath, Odessa, etc., in Ontario. Lily 

 Lake, New Brunswick.— G. U. Hay, Aug 1st, 18*76. 



As noted by Dr. Gray, this species, like alba, varies with rose-coloured flowers, and 

 there is a variety known as rubra, grown at Kew and other gardens in England, 

 " originally found by Mr.fSturtevant " in a " lake near Cape Cod," not in Newfoudland 

 as stated, but in Barnstaple, Massachusetts. Mr. Frank Miles remarks in The G-arden, 

 XXVIII, p. 653, that, in the open air air in England it is as red as Calba var. rubra. 



Nymphœa Parkeriana, Lehmann, Index Sem. in Horto Bot. Hamb., Annales des Se. 

 Nat., ser. 4, I, p. 325, British Guiana, Parker, (Lehm.), appears to be closely related to C. 



Sec. IV, 1888. 15. 



