83G XXX. AEOIDE^E. 



SECTION III. CALLED. Spathe coloured, persistent (Calla), or deciduous 

 (Monstera, Scindapsus). Flowers achlarnydeous. Spadix sometimes g below, some- 

 times below and above (Monstera, Scindapsus) ; filaments flat ; anthers 2-celled, 

 opening longitudinally. Ovaries 1 -few-celled ; stigma sessile or sub-sessile ; ovules 

 erect, anatropous (Calla, Monstera), or campylotropous (Scindapsus). Seed sometimes 

 exalbuminous (Scindapsus). Terrestrial herbs, sometimes aquatic (Calla). Stem 

 elongate, often stoloniform, branched or climbing, and more or less furnished with 

 adventitious roots. Laaves sub-distichous, blade entire or perforated (Monstera, &c.). 

 Stipulary sheaths adnate to the petiole, or free and opposite to the leaves. 



PRINCIPAL GENERA. 

 * Calla. * Monstera. * Scindapaus. * Tornelia. 



TRIBE II. ARACEM. 



Flowers diclinous, achlamydeous, the 9 on the lower, the $ on the upper part 

 of the spadix. 



SECTION IV. ANAPORE^E. Spadix free (Aglaonema, Richardia), or adnate to the 

 spathe (Spathicarpa, Dlejferibachia, &c.), rarely terminated by a sterile appendage 

 (Pinellia). Flowors $ and $ contiguous, the $ usually mingled with staminodes. 

 Anthers free or coherent, sunk in a thick connective, opening by pores. Ovaries 

 1-3-celled ; style short or ; ovules solitary or numerous, erect or ascending, rarely 

 pendulous (Richardia), orthotropous, or rarely anatropous (Richardia, Aglaonema). 

 Herbs with knotted rhizome, stemless or caulescent. Petiolar sheaths elongated, 



the stipulary 0. 



PRINCIPAL GENERA. 



* Richardia. * Pinellia. Spathicarpa. * Aglaonema. * Dieffenbachia. 



SECTION V. COLOCASIE^E. Spadix free, terminated by a naked and sterile 

 appendage (Colocasia, Peltandra, &c.), or with no appendage (Caladium, Xanthosoma, 

 Acontias, Syngoniiim, Philodendron, &c.). Flowers <j> and $, numerous, usually 

 separated by rudimentary organs. Anthers free or coherent, cells sunk in a thick 

 and peltate connective. Ovaries numerous, free, 1-many-celled, several-ovuled ; 

 style short or ; ovules orthotropous or semi-anatropous. Seeds albuminous. 

 Herbs with tuberous rhizome, stemless or caulescent, sometimes climbing. Leaf- 

 blade pelti-palmi-nerved. Petiolar sheaths long or short, the stipular 0, or elon- 

 gated and opposite to the leaves. Spathes usually sweet-scented. 



PRINCIPAL GENERA. 



* Colocasia. Peltandra. Syngonium. * Alocasia. 



* Xanthosoma. * Philodendron. * Caladium. * Acontiaa. 



SECTION VI. DRACUNCULINE^E. Spadix free, or rarely adnate to the base of 

 the spathe, monoecious, or very rarely dio3cious (Ariscema), terminated by a naked 

 clavate appendage (Arum), or flagellate (Ariswma), or globose and irregular (Amor- 



