Family SCROPHULARIACEA i 
5. Acerates lanuginosa (Nutt.) Dec. 
Occurs over most of the state, though not abundant. Clearwater; 
Crete; Lincoln; Minden; Ponca; Thedford. 
4. Gonolobus. 746. 
1. Gonolobus levis Michx. Sand Vine. 
Rare in the southeastern corner of the state. Nemaha; Rulo. 
SCROPHULARIALES. 
Flowers regular; fertile stamens 5. (Verbascum.) 1. Scrophulariacee. 
Flowers irregular; fertile stamens 2 to 4. 
Leaves green; plant not parasitic. 
Plants with normal aerial leaves. 
Placentz axile; ovary 1 or 2-celled; capsule not long-beaked. 
Capsule not elastically dehiscent; calyx lobes if filiform 
much less than 2 cm. long. 1. Scrophulariacez. 
Capsule elastically dehiscent; calyx segments, in our species, 
filiform, 2—2.5 cm. long. 5. Acanthacee. 
Placentz parietal; ovary 1-celled; capsule with 2 curved beaks 
longer than the body. 2. Martyniacez. 
Plants with floating, finely dissected, bladder-bearing leaves. 
4. Lentibulariacez. 
Leaves not green, scaly; plants parasitic. 3. Orobanchacee. 
1. SCROPHULARIACE2. 
Figwort Family. 
Fertile stamens 5; corolla regular, rotate. 1. Verbascum. 
Fertile stamens 4 or 2, the fifth if present sterile. . 
Corolla spurred at the base. 2. Linaria. 
Corolla not spurred at the base. 
Anther-bearing stamens 2, or if four the capsule flattened and 
emarginate at the apex. 
Capsule terete, pointed. 
Flowers solitary in the axils. 
Flowers yellow or whitish; peduncles with 2 bracts at the 
summit. _ 8. Gratiola. 
Flowers purplish; peduncles bractless. 7. Ilysanthes. 
Flowers in dense terminal spikes. 12. Leptandra. 
Capsule flattened, obcordate or emarginate at the apex. 
Corolla 2-lobed or wanting, flowers in dense terminal spikes. 
10. Synthyris. 
Corolla 4—5-lobed; flowers axillary or in axillary racemes. 
11. Veronica. 
Anther bearing stamens 4; capsule never flattened or emarginate. 
Stamens 5, but 1 sterile. 
Sterile stamen a mere scale adnate to the corolla. 
3. Scrophularia. 
Sterile stamen as long or nearly as long as the others. 
4, Pentstemon. 
