Class XIII, Order I. 21? 



seen by a magnifier. Calyx of six concave leafets, the three 

 outermost green and roundish or ovate ; the three inner ones 

 resembling petals, somewhat wedge-shaped, retuse, yellow shad- 

 ed with dull crimson, sometimes with green. 



Petals? about fourteen, less than half the length of the caryx, 

 yellow, wedge shaped, truncated, fleshy, impressed by the sta- 

 mens, but Without any thing like nectariferous furrows. Stamens 

 numerous, linear, flat topped, erect in the bud, recurved in the 

 flower, inserted into the sides of the receptacle below the germ. 

 Anthers of two longitudinal cells on the upper side of the fila- 

 ments. Germ large, ovate, furrowed on the outside. Stigma 

 peltate, sessile, circular, its border slightly undulated or cre- 

 nate, its upper surface with a central depression, from which 

 proceed about twenty slightly prominent mys, which, by their 

 appearance, are so many distinct stigmas, each one correspond- 

 ing to a cell in the germ. Ponds and ditches. May, June. 

 Perennial. 



The furrowing of the petals and g"erm, and the crenatures of 

 the stigma, are merely produced by the apposition of the 

 stamens in the bud. The petals and stamens are also truncated, 

 in consequence of the depressed and globular form of the bud ; 

 which is one of the best jjeneric marks. 



O 



In the number of its calyx leaves, and its undulated stigma, 

 this plant is JV. advena. In its semicylindrical petioles and num- 

 ber of rays of the stigma, it is JV. lutea. In northern latitudes 

 where the roots can only exist in deep water, the leaves arc 

 always floating ; in southern, where they can live in shallow 

 water, the leaves are erect. 



NUPHAR KALMIANA. Ait. Kalm's Water Lily. 



Leaves cordate ; the lobes subapproximate ; calyx 



five leaved ; stigma cut with from eight to twelve rajs. 



A small species appearing like a diminutive oflspring of the 

 preceding. In Sudbury river. Mr. Boott June. 



221. NYMPFLEA. 



NYMPH;EA ODORATA. Siveet scented Water Lilly. 



Bigelow, Medical Botany, PI. Iv. 



Leaves orbicular-cordate, entire: the lobes acumi 



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