978 | AMMIACEAE 
not very numerous, lax: umbel-rays slender, mostly over E em. long at matur- 
ity: bracts entire: petals less than 1 mm. long: fruit ovoid, 1.5 mm. long or 
ae barely cu at the apex.—Swamps and damp “hillsides, various prov- 
nces, Ala. to Tex., Kans. and Ill.—Spr.-fall. 
26. HARPERELLA Rose. Perennial pros eaulescent herbs. Leaves 
alternate, reduced to terete jointed phyllo Flowers perfect, in compound 
nvolueres and involucels inconspicuous. Sepals acute, slightly un- 
ud Petals white, broad. Stylopodium short. Fruit oval, flattened later- 
ally: earpels rather prominently 5-angled: oil-tubes solitary in the intervals 
j hr 
and 2 in the inner side.—Three species, natives of the southeastern United 
States 
Basal and lower ee leaves mostly over 2 dm. long: corolla ge mm. wide: 
fruit about 1.5 mm. wide. . H. nodosa. 
Basal and lower ‘cauiine leaves mostly less than 1.5 em. long: 
corolla 1-1.5 m wide: fruit about 1 mm. wide. 2. H. fluviatilis. 
1. H. nodosa Rose. Plant stout, stiff, 3-13 dm. tall, rather freely e 
the stem fluted: basal and lower cauline um mostly 2—4.5 dm. long, withou 
bulblets in the axils: peduncles elongat 
ddr) —4 em. 
1-2.5 em 
dos anthers barely 0.5 mm. long: fru 
abe ut 1.5 mm. wide Wis iod. der 
Plain, S W Ga.—Spr.- 
2. H. fluviatilis Rose. Plant slender, weak, 
1-3 dm. tall, sparingly ee the stem 
angled: basal and lower leaves 
rm 1-1.5 dm a ng, Be utes in their 
axils: peduncles ‘short, . long: 
umbel-rays 2-5, becom cd p T long: 
o. 1-1.5 mm. wide: anthers eee 0.3 
mm. long: fruit about 1 mm. Y wide.—Rocky 
beds of streams, in the Appalachian prov- 
inees in Ala — Sum. —fall. 
27. CHLERI Adans. Annual or perennial herbs. Leaf-blades pinnate or 
ternately decompound. Umbels compound. Involueres ACE or wanting. 
Sepals obsolete or minute.  Petals white, 
road. Fruit somewhat smooth or biberon: 
late: earpels 5-angle 5-ribbed, with h 
oil-tube in each PES or 2 in the i 
face.—About 5 species, widely sectas 
1. C. A (L.) Britton. d 2—9 
dm. leaf-segments cuneate sub- 
orbieuar, pue and toothed: ar 0.5-1 
long: fruit ovoid, about 1.5 mm. long. 
wre graveolens L. ]— (CELERY. )—W aste- 
places a Wo s the coast, various 
provinces, n N. d Calif. and Va.— 
Nat. of Eu. e — Used in pem 
The blanched js are MR 
