ORDER 131. AROEDS. 303 



Spathe rolled in at base. Top of spadix club-shaped. Dragon-root. ARIS^B-'MA. 1 

 b Spathe rolled inwards the whole length. Anow-lvd. Dragon. PELTAN'DRA. 2 

 b Spathe rolled backwards above, white. Egyptian, Oalla. RICHAR'DIA. 



c Perianth 0. Spathe open, flatfish, white. Lvs. cordate. Wild Calla. CALLA. 



c Perianth regular. Spa. shell-form. Lvs. large. Skunk-cabbage. SYMPLOCAR'PUS. 

 d Flowers terminal, yellow. Scape terete. Golden Club. ORONTIUM. 



d Fie were lateral, green. Scape leaf- like. Sweet Flag. A'CORUS. 3 



1. ARISJE'MA. Arum. Indian Turnip. 



JSpathe rolled inward at base. Spadix covered with flowers below, 

 miked and club-shaped above. Sterile flowers above the fertile, each a 

 clump of 4 stamens. Fertile flowers each a 1-celled ovary, with a flat 

 stigma. Berry red, with 1 or several seeds. Odd-looking plants, with 

 scape arising from a corm or rootstock, and sheathed with the radical 

 leaves. Taste very acrid. 



1 A. triphyl'lum. Jack-in-the- Pulpit. Leaves usually 2, trifoliate. Spathe bent and 



inflected above, covering the obtuse spadix, striped. 



2 A. quina'tum. Five-leaved Jack. Leaves in pairs, one or both quinate. S. 



3 A. Dracon'tium. G-reen Dragon. Leaf mostly solitary, pedate, 7-11-foliate. 



8. PELTAN'DRA. Arrow Dragon. 



The steiile flowers consist of 8-12 anthers attached to the border of a 

 shield-shaped (peltate) connectile. Root fibrous. Leaves sagittate. 



1 P. Virgin 'ia. Virginia A. Spathe green, incmved, long, wavy on the margin. 



Leaves many, large, hastate-sagittate, very Smooth, dark. 



2 P. glau'ca. Glaucout A. Spathn wl ite, entire, gradually unrolled and widened 



above. Leaves ovate-sagittate, the base lobes large. S. 



3. AC'ORUS. Sweet Flag 



Spadix cylindric, sessile, issuing from the side of a leaf-like scape with- 

 out a spathe. Perianth of 6 sepals. Stamens 6. Fruit capsular, 3-celled, 

 OD. seeded, u Rhi/ome thick, aromatic. Leaves all radical, linear-sword- 

 shaped like the scape. 

 A. cal'amus. The Sweet Flag grows in swampy places throughout the country. The 



long sword-shaped leaves are marked by a ridge running; their whole length (2-3 f.). 



Spadix about 3' long, yellowish-green, borne midway of the length of the leaf-liko 



scape. Root a thick, creeping rhizome, much valued for its warmly pungent 



qualities. 



