Pl.end.pk. 8. TYPHACEAL 29. Sparganium. 39 
Ament roundish ; fruit sessile ; 
setce none ; stigma linear Sparganium. 29. 
Ament roundish ; fruit sessile ; 
setce none ; stigma peltate Platanaria. 30. 
Ament cylindrical ; fruit pedicelled ; 
setce girding the fruit Typha. 31. 
I. 29. SPARGANIUM. Dioscorides. Burreed , 
Ament roundish, axillary; psrigonium 3-lobed, deciduous; 
stamens three ; filaments capillary ; anthers oblong ; ovary 
turbinate ; style short ; stigma 1 or 2, linear, long, acute ; 
akenium 1-2 seeded; not girt with bristles . — Root creeping; 
leaves three-edged ; stem branchy ; ament lateral, on a 
flexuose peduncle ; upper aments male. 
1. Sparganium ramosum. Branched lurreed. 
Leaves 3-edged at the base, sides concave; peduncle 
branched. 
Sparg. ramosum, Rail Syn . 437, 1 ; Ger. em. 45 ; Park. 1205 . 
Sparg. erectum, Lin. S.P. 1378. 
Ditches and river-banks ; perennial ; June, July. 
Stem about 3 feet high ; peduncles alternately branched, 
many flowered, bent at bottom ; flowerheads alternate, 
sessile, many flowered ; upper heads male, numerous ; lower 
heads female. 
2. Sparganium simplex. Unhranched lurreed . 
Leaves 3-edged at the base, sides flat ; peduncle simple. 
Sparg. non ramosum, Raii Syn. 437, 2; Park. 1205. 
Sparg. lati folium, Ger. em. 41. 
Sparg. erectum 0. Lin. S. P. 1378. 
Ponds in a gravelly soil ; perennial ; July, August. 
Stem and peduncle not branched ; lowest flowerhead 
sometimes pedicelled ; calyx greenish. 
II. 30. PLATANARIA. Dodonasus. Rillandwort . 
Ament round, axillary ; perigonium 3-leaved, deciduous ; 
stamens 3; f laments capillary; ovary subturbinate; style 
short; stigma ovate, peltate; akenium one-seeded, not girt 
with setae . — Root creeping, perennial ; stem and leaves flat, 
flaccid, semipellucid, reticulate, floating ; peduncle un- 
branched ; female flowerheads 2 or 3, the lowest pedicelled, 
malehead usually single, terminal. 
