1912] Blake,— Forms of Peltandra virginica 105 
Falls, 1878 (Miss Furbish); Brunswick, 1882 (Miss Furbish); Spruce 
Pond, Cornish, July, 1900 (A. H. Norton). New HawrsniRE: E. 
Jaffrey, 8 July, 1897 (B. L. Robinson 161 part). MASSACHUSETTS: 
Beaver Brook Reservation, May 26, 1894 (W. H. Manning); Stony 
Brook Reservation, June 17, 1895 (G. L. Chandler); damp ground 
near pond, West Stoughton, 23 Sept., 1911 (Blake 3378); Sphagnum 
bog, Canton, 13 Sept., 1911 (Blake 3325); ditch in woods, Norwood, 
12 Oct., 1911 (Blake 3440). Detaware: Wilmington, June 2, 1890 
(A. Commons). Maryann: Marshall Hall, July 23, 1890 (J. N. 
Rose) and June 23, 1905 (Ivar Tidestrom); swamp along Potomac 
River, near Chainbridge, above Washington, July, 1904 (Ivar Tide- 
strom). Disrrict or CoruMBIA: Washington, river swamp, May 
29, 1896 (E. S. Steele). Fiorma: Miami River, Feb. 5, 1892 (J. H. 
Simpson); swamps in water, vicinity of Eustis, Lake Co., April 15- 
30, 1894 (G. V. Nash 453). 
+ + Leaves comparatively narrow, 6-12 cm. broad, acute to acuminate; 
basal lobes longer (mostly one to two times the breadth of blade), narrow 
"iud em. broad near the middle), mostly lanceolate or linear lanceolate in 
outline. 
^ Leaves larger and broader (main blade 10.5-23.5 em. long, 6-12 em. broad ;) 
basal lobes longer, (5)7-13 em. long, often twice the breadth of leaf, widely 
divaricate. 
4. P. vrnGiNICA f. hastifolia, n. forma.! ?P. hastata Raf. TYPE 
sHEET No. 4530, my herb.; damp ground near pond, West Stoughton, 
Massachusetts, 23 Sept., 1911, Blake 3377; PARATYPE, No. 4531, 
same data, in Gray Herb. Other specimens examined: MANE: 
Spruce Pond, Cornish, July, 1890 (A. H. Norton). MassAcHU- 
sETTs: Malden, July 2, 1890 (L. L. Dame), and July 2, 1876 (H. L. 
Moody); ditch in woods, Norwood, 12 Oct., 1911 (Blake 3441). 
CONNECTICUT: rare, in pond, Southington, July 12, 1899 (L. Andrews 
820); ponds, Southington, July 12 and Aug. 18, 1899 (Bissell 881). 
MicuiGaN: (no other data). 
++ ++ Leaves smaller and narrower (main blade 10.5-20 em. long, 3-5.5 em. 
wide near middle); basal lobes shorter (2-7 cm. long), the lobes only rarely 
divergent. 
5. P. vrnaiNICA f. brachyota, n. forma? Type suEET (in Gray 
Herb.): New HawrsurnE: Contoocook River, East Jaffrey, 6 Aug., 
1898 (W. Deane and B. L. Robinson 574). Other specimens examined: 
New HAMPSHIRE: abundant in shallow water of river; East Jaffrey, 
8 July, 1897 (B. L. Robinson 161 part). Massacuusetts: Lynnfield, 
June 17, 1879 (H..A. Young); wet meadow around Doleful Pond, 
Stoneham, July 9, 1896 (W. P. Rich); sphagnum bog, Canton, 13 
1 P. virarnica f. hastifolia, n. forma, foliis acutis vel acuminatis, lamina 10.5-23.5 
cm. longa, 6-12 cm. lata, lobis basilariis angustis, (5)7-13 cm. longis, latitudine 
laminae saepe duplo longioribus, late divaricatis. 
2P. vrRaiNICA f. brachyota, n. forma, foliis minoribus, angustioribus, lamina 
10.5—20 cm. longa, 3-5.5 cm. lata, auribus brevioribus, 2-7 cm. longis, raro divaricatis. 
