HALORAGEjE. 



HAS. Moist woods. Can. to Car. July, Aug. 1. Stem a foot 

 and a half high, smooth, simple. Floicers in long terminal ra- 

 cemes, reddish-white. Enchanter s Nightshade. 



2. C. alpina Linn. : stem branched, very smooth, often procumbent ; 

 leaves broad-cordate, membranaceous, acutely toothed, shining. 



HAB. Moist shady places on mountains. Can. to Car. July. 11. 

 Stem 6 8 inches high, somewhat diaphanous. Leaves very 

 thin and delicate. Raceme filiform Many botanists consider 

 this a mere variety of the preceding. 



ORDER XLII1. HALORAGE^E. De Cand. Lind. 



Calyx superior, with a minute limb. Petals minute, in- 

 serted into the summit of the calyx, or wanting. Stamens 

 inserted into the same place, mostly equal in number to the 

 petals. Ovary adhering inseparably to the calyx, with one 

 or more cells ; styles none ; stigmas equal in number to the 

 cells. Fruit dry, indehiscent, membranous or bony, with 1 

 or more cells. Seeds solitary ; albumen fleshy ; embryo 

 straight, in the axis ; radicle superior. . 



Herbs, growing in wet places, with alternate, opposite or 

 whorled leaves. Flowers sessile, occasionally monoecious or 

 dioecious. 



1. PROSERPINACA. Linn. 



Tube of the calyx adhering to the triquetrous ovary ; limb 

 3-parted. Petals none. Stamens 3. Stigmas 3, sessile 

 upon the top of the ovary. Carpels 3, indehiscent, dry, con- 

 creted into a 3-sided fruit. Triandria. Trigynia. 



1. P. palustris Linn. : upper leaves linear-lanceolate, serrate; lower 

 ones often pinnatifid ; fruit angular, acute. P.paiustris var. a. Mich. 



HAB. Wet places. Can. to Car. July, Aug. 2_. Stem pro- 

 cumbent. Leaves alternate, sessile. Flowers axillary, nearly 

 sessile. Mermaid Weed. 



2. P. pectinata Lam. : leaves all pinnatifid-pectinate ; nut large, 

 angular, obtuse. P. palustris var, b. Mich. 



HAB. Wet grounds. N. J. to Geor. Aug. 24!. Distinguished 

 from the former, by having the leaves all finely pectinate and the 

 fruit with rather obtuse angles. 



2. MYRIOPHYLLUM. Linn. 



Flowers monoecious or rarely perfect. STERILE FL. Ca- 

 lyx 4-parted. Petals 4-lobed, alternating with the calyx, 

 ovate, caducous. Stamens 4 6 8. PERFECT FL. Calyx 



11 



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