TYPHACEJE. (CAT-TAIL FAMILY.) 443 
2. L. polyrhiza, L. Stems roundish or obovate, flat and pale above, 
convex and dark purple beneath, clustered ; roots numerous, clustered ; ovules 2. 
— Ponds, Florida, and northward. — Less common than the preceding. Stems 
2! —4" long. 
Orper 137. TYPHACE. (Car-tar FAMiLY.) 
Simple-stemmed marsh herbs, with elongated strap-shaped nerved 
leaves, and moncecious flowers, on a globular or cylindrical spadix, desti- 
tute of floral envelopes, but enveloped in copious pappus-like hairs or 
scales. Spathe bract-like or none. Anthers single or 2 — 4 together, on 
long and slender filaments. Ovary 1-celled, with ‘a single suspended 
anatropous ovule. Style slender. Fruit nut-like. Embryo straight in 
copious albumen. — Sterile spadix placed above the fertile, continuous or 
distant. : 
LE TYPHA, Tourn Car-rarr. 
Flowers densely erowded on a long cylindrical terminal spadix, enveloped in 
copious pappus-like hairs; the sterile ones sessile on the upper part of the spa- 
dix, the fertile on slender stalks. Style filiform : stigma lateral. Embryo cylin- 
drical, in the axis of fleshy albumen. — Stems straight, from a thick rhizoma, 
clothed below with the sheathing bases of the elongated linear leaves. Spathes 
bract-like and deciduous, or none. 
1. T. latifolia, L. Stem terete, jointed below; leaves nearly as long as 
the stem, erect, flat, reticulated and somewhat glaucous ; sterile and fertile por- 
tions of the spadix contiguous, cylindrical. — Margins of ponds and rivers, 
Florida, and northward. July and Aug. — Stem 4°- 6° high, scape-like above. 
Leaves about 1’ wide. . Spadix about 1° long. — T. angustifolia, Z., if found 
Within our limits, may be known by narrower leaves which are channelled near 
the base, and by the interval which separates the sterile and fertile portions of 
the spadix. : 
2. SPARGANIUM, L. Bun-nrrp. 
Flowers densely crowded in globular heads, surrounded by several scales like 
.^calyx ; the upper heads sterile, naked, the lower fertile and commonly bracted. 
Ovary sessile, pointed by the short persistent style. Stigma lateral. Fruit nut- 
like. Embryo cylindrical, in the axis of fleshy albumen. — Marsh or aquatic 
Plants, with erect stems, and long strap-shaped sessile leaves, the lowest ones 
sheathing. Heads of flowers scattered. 
I. S. ramosum, Huds.? Leaves flat, obtuse, the upper ones gradually 
shorter, concave and clasping at the base, the lower sheathing and elongated ; 
heads 5—9, disposed in axillary and terminal interrupted spikes ; the lowest one 
larger and pistillate, the others wholly staminate ; scales wedge-shaped ; stigma - 
. "übulate, simple, (S. Americanum, El.) — Lagoons and ditches, Florida, and - 
 Rorthward. July. — Stem 2° - 3° high. Leaves as long as the stem, 8” - 12/ tt 
Wide. Heads of fertile flowers 8” - 10" in diameter. PW 
