5^22 MOXOECIA. POLYANDltlA. 



somewhat rhomboidal. 6. amara. (Bilter Nut). 7- por- 

 dnCi. (Pig" Nut). 8. aquatica. 9. ivyristicceformis. 



A North American genus belonging* to the Natural Or- 

 der of the Amenta CE-E. 



702. ARUM. L. (Wake Robin, &c.) 



Spatlia cuciiliate. — Spadix above naked, be- 

 Jow t'eminine, in the middle staminiferous. Ca- 

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



Mostly stemless, rarely caulescent; leaves simple or 

 pseuclocompouKd. 



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

 I «j)adix subulate, longer tiian the oblong convolute spathe. 

 1 1 AB. From Pennsylvania to Florida. (In the vicinity of 

 Philadelpliia; rare.) 



2. • guinatnm. Leaves quinate, lanceolate, acuminate. 

 11 A B. In Georgia; — Dr. Bitkhvyr. v. s. Nearly allied to 

 il)e following, and probably to ^. pentaphylhan of India. 



3. triphjllum. (Ir.dian 1 i:rnip. ) Ods, Polygamous, dioi- 

 cous; genn 6-seedetL Berric-s scarlet, 3 or 4-seeded; in- 

 tegiin.ent of tlic seed double, the inner membranaceous; 

 fmbr}on cylindi'ic, inverted, situated in the axis of a fa- 

 rlr.aecuus perisperm. /3, atronibens. 4. virginicum, — Ber- 

 ry many-seeded. 



A genus of about 30 species principally indigenous to 

 India, the warmer parts of Europe and America^ 



ro3. CALLA. Z. 



Spathe flattish. Spadix covered with flowers* 

 Calix and corolla none. Berry many-seeded. 



Habit similar to Arum. 



Species. C palu^trls.—Wso indigenous to Europe. 



754. CALADIUM. Ventenat 



Anilicrs peltate, many-celled, collected into a 

 spike Jit tl'.c summit of the spadix. Germs \n- 

 F;erted at the base of the spadix. Stylenonc. Stig- 

 via iimbilicate. Berry l -celled, many-seeded. 



Mode of vegetation similar to that of Anm. 



Species. 1. Q, sagitti folium P Leaves glaucous; spathe 

 white. 



A genus of 16 species (according to PeTsoon) almost 

 exclusively indigenous to India and the warmer parts of 

 Amc-iica. 



