A RALES.] 



ARACEiE. 



120 



Roxburgh pronounces it to be certainly a most poAverful stimulant ; other species are 

 likewise erajiloyed, as A. montanum, Roxb., (macrorhizon, Amslie). The plant called 

 by the latter Dracontium polyphyllum is exhibited internally when its acrimony has 

 been subdued ; it is considered antispasmodic, and is also said to be useful in asthmatic 

 cases. An emmenagogue is said to be prepared from it in the Society Islands. Agardh 

 considers that the acrid principle, which, notwithstanding its gi'eat fugacity, has been 

 obtained piu*e, is no doubt of great power as a stimulant. Aph. 133. The Colocasias 

 are remarkable for bemg milky. Various species of Philodendron have a turbid acrid 

 juice, and are found useful in cleansing foul ulcers ; they are also employed for many 

 other purposes in Brazil. See Martins Mat. Med. Bras. 96, who mentions Dracontium 

 polyphyllum, Arisaema Pythonium, and Monstera Adausonii, as caustics. 



l.—Cryptocorymf^. 

 Stamens distinct from 

 the pistils, which are 

 several, whorled round 

 the base of the spadix, 

 and there combined into 

 a many-celled ovary. 



Crj-ptocorj-ne, Fisch. 



Stylochaeton , Lepr. 



II. — Dracuncidece. 



Stamens and pistils nu- 

 merous, with rudimen- 

 tary organs interposed. 

 Spadix naked at the 

 end. Cells of the an- 

 thers larger than the 

 connective. 



Arisarum, Tournef. 

 Arisaema, Mart. \ 



Biarum, Schott. 



Homaid, Adans. 



Ischarum, Blume. 

 Arum, Linn. 



Gigarum, Caesalp. 



Eminiinn, Blume. 

 Typhonium, Schott. 



St'iuromatum, Schott 



Theriophonum, Blum. 

 Dracunculus, Tournef. 

 Pythonium, Schott. 



Thomsonia, Wall. 

 Amorphophallus Blume. 



Candarum, Reichenb. 



Pythion, Mart. 



III. — Caladiece. 

 Stamens and pistils nu- 

 merous, contiguous or 

 separated by the rudi- 

 mentary bodies. Spa- 



GENERA. 



I dix usually naked at 

 I point. Cells of anthers 

 with a very thick con- 

 nective. 



Rerausatia, Schott- 

 Gonatanthus, Kl 

 I Colocasia, Ray. 

 Caladium, Vent. 

 Peltandra, Raftn. 



Renssclaeria, Beck. 



Lecontia, Torr. 

 Xanthosoma, Schott. 

 Acontias, Schott. 

 Sj-ngonium, Schott, 

 Culcasia, Palis. 



Denhamia, Schott. 

 Philodendron, Schott. 



Calostigma, Schott. 



Meconostigma, Schott. 



SiJhincterostigma, Scht. 



IV.—Anaporece. 

 Stamens and pistils 

 numerous, contiguous, 

 usually having the ru- 

 dimentary- bodies inter- 

 mixed with the pistils. 

 Point of spadix rarely 

 naked. Cells of the 

 anthers immersed in a 

 very thick fleshy con- 

 nective. 



Spathicarpa, Hook. 

 Dieffenbachia, Schott. 

 Pinellia, Tenor. 



Atheruru.i, Blum. 



Hemicarpurus, Nees. 

 Aglaonema, Schott. 

 Homalonema, Schott, 

 Richardia, Kunth. 



Zantedeschia, Spr. 



Numbers. Gen. 26. Sp. 170. 



Ch'ontiacece, 

 Position. — Lemnacese. — Arace^. — Typhacese. 

 Pahnacece. 



