222 MONOECIA. POLYANDRIA, 



somewhat rborr.boidal. 6, amara. (BiUer Nat). 7. por* 

 cina. (Pig Nut). 8. aquatica. 9. mynsticceformis. 



A North American genus belonging to the Natural Or- 

 der of the AMENTACEiE. 



762. ARUM. X. (Wake Robin, &c.) 



Spatha cucullate. — Spadlx above naked, be- 

 low feminine, in the niiddle staminiferous. Ca- 

 lix and corolla none. Berry 1 or many- seeded. 



Mostly stemless, rarely caulescent; leaves simple or 

 pseudocompound. 



Species. 1. A. Dracontium, Leaves pedate, entire; 

 spadix subulate, longer than the oblong convolute spathe. 

 JIab. From Pennsylvania to Florida. (In the vicinity of 

 Philadelphia; rare.) 



2. * qxiinauim. Leaves quinate, lanceolate, acuminate. 

 Mab. In Georgia; — Dr. Baldwyn, v. s. Nearly allied to 

 the following, and probably to Jl, pentaphylhwi of India. 



3. triphylbnn. (Ii.dtan Turnip,; Obs, Polygamous, dioi- 

 cous; gerrn 6-seeded. Berries scarlet, 3 or 4-seeded; in- 

 tegument of the seed double, the inner membranaceous; 

 embryon cylindric, inverted, situated in the axis of a fa- 

 rinaceous perisperm. /3, atrorubens. 4. virginicum, — Ber- 

 ry many-seeded. 



A genus of about 30 species principally indigenous to 

 India, the warmer parts of Europe and America. 



763. CALLA. i. 



Spathe flattish. Spadix covered with flowers. 

 Calix and corolla none. Berry many-seeded. 



Habit similar to Arnm. 



Species. C. pnlnstris. — Also indigenous to Europe. 



764. CALADIUM. Veritenat, 



Anthers peltate, many-celled, collected into a 

 spike at the summit of the vspadix. Germs in- 

 serted at the base of the spadix. Stylenoue, Stig- 

 ma umbilicate. Berry 1 -celled, many-seeded. 



Mode of vegetation similar to that of Arum, 

 Species. 1, C, sagiitifoliurn P Leaves glaucous; spathe 



white. 



A genus of 16 species (according to Fersoon) almost 



exclusively indigenous to India and the warmer parts of 



America. 



