LIST OF SEEDS, BULBS, TUBERS, ETC. 123 
TYPHACEZE (Cattail Family). 
TypHa, Tourn.—Cattail Flag. 
T. latifolia, L—Common Cattail:—Stout and tall 
(4—6° high), the flat sheathing leaves 3—10° broad, 
exceeding the stem; the staminate and dark brown 
pistillate parts of the spike (each 3—6 long or more), 
usually contiguous, the latter at length 1° in diameter ; 
pistillate flowers without bractlets; stigma rhombic- 
lanceolate; pollen grains in fours. In marshes, 
throughout North America. 
T. angustifolia, L.:—Leaves narrower (3—6° 
broad, taller, somewhat convex on the back; 
pistillate and staminate inflorescence usually separated 
by a short interval, the light-brown spike becoming 
5—6" in diameter; pollen-grain simple; pistillate 
flowers with a lineal stigma and a hair-like bract- 
let slightly dilated at the summit. New England to 
New Jersey, west to Michigan and Missouri; less fre- 
quent, and mainly near the coast. 
JUNCACEZ, Tourn. (Rush, Bog Rush). 
Juncus. 
J. effusus—Common or soft rush:—Very common 
in marshy ground and in still waters. Description well 
known. 
POLYGONACE: (Buckwheat Family). 
PoLyconum, Tourn. 
P. hydropiperoides, Michx—Mild Water Pepper: 
—Perennial, not acrid; stem smooth (1—3° high), 
branching ; the narrow sheaths hairy; leaves narrowly 
lanceolate, sometimes oblong; spikes erect, slender, 
sometimes filiform, often interrupted at base (I— 
21’ long); flowers small, esh-color or nearly 
white ; sepals not dotted ; stamens eight ; achene sharply 
