HYDROLEACEAE 
Faminy 4. HYDROLEACEAE — WamER-LEAFP FAMILY 
Annual or perennial herbs, or shrubby plants. Leaves alternate or 
opposite: blades toothed, lobed, or dissected, or rarely entire. Flowers 
filaments partly adnate to the corolla. Gynoecium 2-carpellar ruit a 
capsule "en 20 genera and 175 species, mostly natives of Western 
North Amer 
Styles aes or S united: ovary 1-celled: leaf- ENS PSY toothed or lobed. 
Corolla-lobes convolute in the bud: ‘placentae dil I. HYDROPHYLLEAE. 
Corolla-lobes imbricate in the bud: placentae n W. II. PHACELIAE. 
Styles distinct: ovary 2-celled: leaf- blades entire, 
Corolla funnelform or salverform : capsule loculicidal, 
the valves bearing the seeds. III. MARILAUNIDIEAE. 
dir rotate or campanulate: capsule septicidal, the 
ils bearing the seeds. IV. NAMEAE. 
m 
Calyx not conspicuously enlarge 
Calyx without reflexed aonda at EU sinuses 1. HYDROPHYLLUM. 
Calyx with reflexed appendages at the sinuses. 
Styles united to near the tips: stamens exserted. 2. DECEMIUM. 
Styles united to about the middle: Stamens included. 3. NEMOPHILA. 
Calyx CONSUE TOMOS enlarged at ma turi | 4. NYCTELEA. 
II. PHACELIEAE 
Annual or rase perennial T flowers in scorpioid 
raceme-like cymes: corolla show 5. PHACELIA. 
ae Mar RILAUNIDIEAE 
Low, often prostrate herbs: flowers re CR HR small. 6. MARILAUNIDIUM. 
AM 
Perennial erect herbs or partly woody planis; flowers in 
axillary or terminal] cymes: corolla show T. NAMA 
1. HYDROPHYLLUM [Tourn.] L. Perennial herbs. Leaf-blades lobed, 
innatifid, or pinnately divided. Cymes long-peduncled. Calyx but little 
changed in fruit. Corolla white or colored. Filaments oes the corolla- 
lobes, eared at the middle. Seeds reticulate—About 12 species, North 
American.—WATER-LEAFS. 
Leaf-blades pinnate or pinnatifid: inflorescence conspicuously hirsu 
Stems barely pubescent: calyx-lobes nearly distinct, linear. 1. H. vir ginicum. 
Stems hispid or hirsute: calyx-lobes elliptic- lanceolate. 2. H. enm 
Leaf-blades palmately 5—7-lobed. 3. H. canaden 
H. virginicum L. Plant 2-7 dm. tall: oy Sa gees coarsely tooth ed or 
incised : cymes open: calyx-lobes linear, about ong, much longer than 
the P E. corolla white a as ee 8.5—10 ^ 
mm. long; jd. rounded a apex.—Rieh W 
"mr various provinees, in “Coastal: Plain 
nd northward, S. C. to Kans., Man., and 
Que FA 
2. H. ma PLA um Nutt. Plant 2-6 dm. 
r in- 
eym mpact: calyx-lobes lanceo- 
me 
than the tube: corolla white, ae long; 
lobes notched at the apex. woods, 
various provinces, N of Dum ‘Plain, Ga. 
to Ill. and Va.—Spr. 
3. H. canadense L. Plant 2-7 dm. tall: 
