230 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
ARISAEMA. Indian Turnip. 
A. Dracontium (L.) Schott. Gkkkn Dragon. — Alluvial soil 
along tlu' Ilouscitonic River; occasional in Great Barrington and 
Sheffield (Walters). 
A. triphyllum (L.) Schott. Indian Tfrnip; Jack-i.v-the-Pul- 
piT. — Rieli \v()(kIs and swamps; common. Altitude 2500 feet, Grey- 
lock. 
var. Stewardsonii (Britton) G. T. Stevens. — (.4. Steicarflsonii 111. 
Fl. ed. 2; vUl. Rhodora, 23, 136, 1921.) 
Swampy woods, Richmond (Evans, Fernald and Knowlton); 
Sheffield. Cold swamp, Savoy, altitude 2000 feet; flood-plain of Cold 
River, Florida. 
Distinguished from A. triphyUum by its strongly fluted spathe and 
shining leaves. 
CALLA. Water Arum. 
C. palustris L. Wild Calla. — Cold bogs; frequent on the 
plateau, occasional in the valley (Sheffield, in the sand-plain, altitude 
900 feet). 
ORONTIUM. Golden Club. 
O. aquaticum L. Golden Club. — Big Pond, Otis, in shallow 
water, on sandy bottom. The most northern known station for this 
plant of the coastal plain. 
PELTANDRA. Arrow Arum. 
P. virginica (L.) Kunth. xArrow Arum. — Pools in swamps, 
• borders of ponds and slow streams; common. 
forma latifolia S. F. Blake.— Vid. Rhodora, 14: 104 (1912). 
Shaw Pond, Otis. 
Leaves very broad, almost eciuilaterally triangular, 18.5 to 28 cm. 
across the tips of the ears, these obtuse or subacute; sinus open. 
forma hastifolia S. F. Blake.— Vid. Rhodora, 14: 105 (1912). 
Shaw Pond, Otis; Round Pond, Great Barrington. 
Leaves comparatively narrow, 6 to 12 cm. broad; basal lobes 7 to 
13 cm. long, often twice the breadth of leaf, widely divaricate. 
forma brachyota S. F. Blake.— Vid. Rhodora, 14: 105 (1912). 
Washington; Stockbridge; Great Barrington. 
