Herbs with pungent juice and simple or compound leaves, these sometimes net-veined and hence suggesting that the plants may be Dicotyledons. Spadix usually accompanied by a spathe. Flowers either without a perianth of any kind, or with 4-6 sepals. Fruit usually a berry.

Synopsis Of The Genera

* Leaves not linear. Flowers without perianth of any sort. Spadix accompanied by a spathe.

1. Arisae'ma. Flowers mostly dioecious, collected on the lower part of the spadix only. Spathe (in our common species) arched over the spadix. Scape from a solid bulb. Leaves compound, net-veined, sheathing the scape below with their petioles. Berries bright red.

2. Peltan'dra. Flowers monoecious, covering the whole spadix; anthers above, ovaries below. Spathe convolute throughout, wavy on the margin, mostly green. Leaves arrow-shaped. Scapes from a root of thick fibres. Fruit a fleshy green berry, 1-3 seeded.

3. Calla. Flowers (at least the lower ones) perfect, covering the whole spadix. Spathe open and spreading, with a white upper surface, tipped with an abrupt point. Scape from a creeping rootstock. Leaves not net-veined, simple, heart-shaped.

* * Leaves not linear. Flowers with a perianth of 4 sepals. Spadix surrounded by a spathe.

4. Symplocar'pus. Leaves all radical, very large and veiny, appearing after the spathes, which are close to the ground and are produced very early in spring. Flowers perfect, their ovaries immersed in the spadix, the latter globular and surrounded by the shell-shaped spathe. Sepals hooded. Stamens 4. Fruit consisting of the soft enlarged spadix in which the seeds are sunk.

* * * Leaves linear, sword-shaped. Spadix on the side of the scape.

Flowers with a perianth of 6 sepals. No spathe. 5. Ac'orus. Scape 2-edged, resembling the leaves, the cylindrical spadix borne on one edge. Sepals hollowed. Stamens 6.

1. Arisae'ma. Martins. Indian Turnip

1. A. triphyl'lum, Torr. (Indian Turnip.) For full description and engraving of this plant see Part I., sections 94-97.

2. A. Dracon'tium, Schott., (Green Dragon) is reported from low grounds near London, Ont. Leaf usually solitary, pedately divided into 7-11 oblong-lanceolate pointed leaflets. Spathe convolute, pointed; the slender point of the spadix extending beyond it.

2. Peltan'dra

Raf. Arrow Arum. P. undulata, Raf. {P. Virginica of most authors.) Root of thick tufted fibres. Scape 12-18 inches high. Staminate part of the spadix much longer than the pistillate. - Shallow water; apparently rare.

3. Calla

L. Water Arum. C. palustris, L. (Marsh Calla.) This plant is fully described and illustrated in Part I., section 98.

4. Symplocar'pus. Salisb. Skunk Cabbage

S. foe'tidus, Salisb. Leaves 1-2 feet long, ovate or heart-shaped, short-petioled. Spathe purplish and yellowish, incurved. Plant with skunk-like odour. - Bogs and wet places; not common northward.

5. Ac'orus

L. Sweet Flag. Calamus. A. Cal'amus, L. Scape much prolonged beyond the spadix. - Swamps and wet places.