AROIDE.E. 261 



1 O Aquaticcm. /.t-arw lnin;eolatc, ovnto, radicle, entire, i?Iabroiis, some- 

 what elaiicous, ineinl>rnnaccous. !<P(ilhe short. i-fMKlis Idm^', yrt'eii at the 

 ! • 111 the iniiidle. wliitc at the summit. Pcrtanlh tiiiiall, prr^isiei.t. 



:. -;iort i-rMiV i;li)liiilar, tlesliy. (loldtn club. 



Yellow'. '1|. March — April. Irj marshes, very common. 1-2 It. 



Genus III ARUM. 



Fliyucrs nioiuecious. Sjxithc l-Icnved, ciicullato, coiniilnle 

 at I lie base. Sjnulix naked at the sumtnit, hearing sterile flo- 

 rets in the middle, and fertile ones at tlic hase. Perianth 

 none. Fruit 1 -celled, many seeeed. 



1 A Dkaco.ntr'.m. /><iiy>- perhaps never Imt one, pedatc, leaflets lanceo- 

 late, oblong, entire, I, on long petioles. SjMidis subulate, lutiiier ilian 'he 

 spathc. Green Dragon. 



While. % June. Moist places. 10-12 in. 



2 A Triphyllum Lewirsternate; leaflets ova'e acuminate, entire. Spa- 

 dix clavate, about half fis long as ihespaihe. Fruit scnrlei, 3-4-«ceded. 1 his 

 species is said to be sometimes dicpcious The A. Quinulum diiiers in no re- 

 spect from the above, but in its (]Minna;e leaves. 



Dmgon root. ]Vnke robf)in. Indian turnip. 

 Purple, striped. % March— April. Kich soils. 10-12 in. 



3 A ViRGixicc.M. Leaven ob!t)nir, hastate, entire, glabrou^:, 10-15 inches 

 ion"; petioles long, sheathing at tlie ba«e ; spalhe incurved. Spaaix about 

 as long as the sjtathe. Fruit many seeded. 



% April — .May. Marshy soils, very common. 12 — 18 in. 



4 A Waltiri. Inures sagittate, triangular with the lobes divaricate 

 acute, probably only a variety of the preceding. 



Uefnarks.— The rvK>i of the \. Triphylhini is pns3e5sed of decided medicinal proper- 

 ties, which are due to an excppdinjrly volatile sul'Stance, which is mostly dissipalid by 

 dryim;, aiul wlioljy by Iwiliui:. Ii is o.vcecdiaizly acrid, producing intense p<iin in the 

 mouth liv biting ihe Iresh root. It i.s not soluble in water, alch'-hol or ether, as it rom- 

 niuuicali s none of its properties to these tluids. ll has been employed with much ben- 

 efit in Ast .ma, ' hroitic f'oi/gfis, li/ieianutism, &c. Ii is administered by grating the 

 dried ruol, and mixing it with sugar, in a dt.>se of ten grains. 



71- April— May. In swamps. 12-18 in. 



Genus IV. GALADIUM. 



Floireis monoDciou.s sterile florets peria?tt?i none. Sta- 

 mens nviiuerou*. Anthers peltate, collected in a sj)ike at the 

 sumtnit of the spadi.x. IVnile fl»)rc'.s ]>erianth nor.e at the 

 base of the spadi.x. Stigma .sessile. Fruit 1 celled, many 

 tseedcd. 



1 C Claucum. /.e«fM hastate, cordate, acuminate, entire, glaucous, lobes 

 long; scape about the length of the petioles; ppafhe cucullaie, dilated at the 

 summit. Sfxidix longer than the tube, with the sterile florets extending to the 

 summit. Fruit red, many seeded. 



White. May— June. Wet soils 12-15 in. 



Ordkk CXIX. I'LL VI ALES. 



Flowers monreciou.*, or perfect. Perianth 2 or 4-parted, 

 or none. Stamens hypogynous, definite. Ovary superior, 



