\ 



DIOECIA HEXANDRIA 



703 



inferioribiis alternis, su- 1 alternate, 



perioribus verticillatim verticillate, and crowd 



the 



upper 



congestis;' pedunculis ed 



peduncles 



praefongis, compressis. long, compressed. 



very 



E. 



f 



N ^ff'f' '^' ?' ^^^' ^^'^^*" P- ^^^- ^^'''^- 2- P- 238. Pursh, 1. p. 251. 



Root perennial. ^ Stem herbaceous, 2 to 3 feet high, erect, slicrhtly an- 

 gled, glabrous, bearing sometimes one or two small branches. Leaves when 

 young oval or ovate, when old slightly cordate, acuminate, 5 to r nerved 

 very pubescent on the under surface, particularly along the nerves, the lower 

 alternate, the upper somewhat verticillate at the summit of the stem, 4 to 5 

 inches long, 3 to 4 wide, on angled petioles 2 to 4 inches long. Flowers on 

 the lower part of the stem. Umbels on very long compressed peduncles. 



seeds, but ma- 



Stiginas 3. - Germ 

 taring only one, sometimes 



Grows in fertile soils. 



Flowers May — July. 



3-celled, each bearing the rudiments of 2 se 

 aetimcs neither. Berri/ spherical, black, 2 



to 3 seeded. 



This genus is very extensive in the Southern States and merits a more 

 careful examination than it has yet received. While waiting for that day 

 Which so often eludes our expectations, when I should be able to collect and 

 examme them at leisure in a living state, I have permitted some opportunities 



which I fOoIKj ar,ir.,TaA t^ r.^«-»^« f f«„l il. _ . 1 1 . *^ T . 



IS incom 



really enjoyed to escape, I feel now that my knowledge of the genus 

 plete, perhaps inaccurate. The two last species will probably con- 

 distinct genus. ^ 



stitute a distinct genu 



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DIOSCOREA. Gen. Pl. 1530. 



Ma scull. 



Calyx 6 



paruius. Corolla 0. 



FoemineL Calyx 6 

 partitus. 



Styli 3. 



^ocularis 



9 



ma 



9 



cea. 



Sterile JloreL Ca- 



lyx 6-parted. Corolla 

 0. 



Fer tile florets. Ca- 



Corolla 0. j lyx 6-parted. Corolla 



Capsula 3- 0. Styles 3. Capsules 



compressa. 3-ceIled^ compressed, 

 membrana- Seeds 2, membranace- 





ous. 



t 



