ACANTHACEAE 1227 
1. T. angustifolia (Fernald) Small. Stem 2-6 dm. tall: basal leaves 4—30 
em. long; blades d elongate linear- aie or r narrowly oblanceolate: 
bracts ciliate: bractlets very narrow: calyx- 
lobes 6-7.5 mm. ln short-ciliate at the 
tip: corolla-lobes much sho rter than the 
body 4-5 mm. long. Everglades, S Fla. 
Spr.—fall. 
. T. carolinensis (Walt) J. F. 
Stem 2-5 dm. tall: basal leaves 5-20 cm. 
long; blades "elliptic to spatulate: bracts 
ciliate: braetlets rather broad: calyx-lobes 
8-9.5 mm. e long-ciliate at the tip: 
eorolla-lobes nearly as long as the tube: cap- 
dedi s exserted at isi tip, the om 5-7 
—Low 
ong. E. 
grounds, em eons oo Plain, 
Fla. to S. C.— 
3. HYGROPHILA R. Br. Annual or perennial weak herbs. Flowers 
solitary or elustered in the axils. Calyx 5-lobed, the lobes nearly equal. Corolla 
mainly white, strongly 2-lipped. Stamens 
4, didynamous. Capsule cylindrie.—A bout 
30 species, tropical. 
1. H. lacustris (Schlecht.) Stem 
3-9 dm. long: le ener PRSE ner: or 
narrowly linear- e 5-12 em. lon 
ealyx-lobes narrowly i subulate, 5-7 
m. 
Swamps and muddy b Coastal Plain, 
Fla. to Tex ^ te ex.) — Sum.-fall.—The 
ore and a half species of his genus are 
all swamp or marsh inhabitants. The sole 
species in the wr United States in- 
habits the  river-bottoms from western 
Florida to Texas. It reaches its greatest 
development in the lower Mississippi Delta. 
4. DYSCHORISTE Nees. Herbs or woody plants: leaf-blades entire. 
Flowers solitary or clustered in the axils. Calyx-lobes 5, very slender. Corolla 
blue, purple, or rarely white, somewhat 2-lipped. Capsule 2-4-seeded. 
phanes D. Don.]—About 30 species widely distributed in warm and tropical 
regions. 
es 
Q 
= 
0- 
ee nearly as long as the corolla; corollas and the bractlets ee equal in 
ngth. 1. D. humistrata. 
Caly3-lolies I than % as long i the corolla; which is fully 
tw S long as the bractle 
Cor olla i ox long or shorter: "leaf-blades of a linear type. 2. D.angusta. 
Corolla fully 2 em. long: leaf-blades mainly of an elliptic 
. D. oblongifolia. 
1. D. humistrata (Michx.) Kuntze. Stem leaves few; blades 
2-3 em. long, elliptic to elliptic-ovate: e E "obe gubulate-seta- 
