SOLANACEAE. 237 



tube 1-1.5 cm. long, more or less pubescent; limb 2 cm. broad, the lobes obo- 

 vate or cuneate, sometimes apiculate: capsules globose-oblong, about 5 mm. 

 long. — S. Eare, in low thickets, near Pleasant Grove. — Schists. — Spr. 



3. P. subulata L. Leaf-blades linear or linear-subulate, 1-1.5 cm. long, acute, 

 sessile: calyx 8-9 mm. long, pubescent like the stem; lobes lanceolate-subulate, 

 nearly as long as the tube: corolla purple, pink, or white; tube 1-1.5 cm. long; 

 limb 1.6-2 cm. broad, the lobes cuneate, emarginate or slightly notched: cap- 

 sules oblong-ovoid, 4-4.5 mm. long. — S. Abundant, on serpentine hills. — Spr. 

 — Ground-pink. Moss-pink. 



4. P. maculata L. Leaf-blades oblong-lanceolate, lanceolate, or linear, 5-12 

 cm. long, acuminate, becoming parchment-like in texture, sessile or nearly so: 

 panicles cylindric, 1-4 dm. long, often glandular-pubescent: calyx mostly 

 deep-green; lobes lanceolate or triangular-lanceolate, about i as long as the 

 tube: corolla pink-purple; tube 1.5-2 cm. long; limb 2-2.5 cm. broad; the 

 lobes orbicular-obovate or broadly cuneate : capsules broadly oblong, 4 mm. 

 long. — Connnon, in swamps. — Early sum. — Wild sweet-avilliam. 



5. P. paniculata L. Leaf-blades elliptic, elliptic-lanceolate, or narrowly ob- 

 long-elliptic, S-20 cm. long, acuminate, undulate, narrowed into margined 

 petioles or nearly sessile: panicles corymbose-pyramidal: calyx glandular or 

 sparingly pubescent; lobes subulate, shorter than the tube: corolla pink-purple 

 or white; tube about 2 em. long, 1.5-2 mm. thick; limb 1-5-17 mm. broad, the 

 lobes obovate or cuneate-obovate : capsules oval, 4-5 mm. long. — Susquehanna 

 valley. Occasional, in thickets. — Sum. 



2. POLEMONIUM [Touru.] L. Herbaceous plants with rootstocks. 

 Leaves alternate: blades pinnate. Corolla funnelform to almost rotate. Fila- 

 ments equally adnate to the corolla, declined. — Greek-valerian. 



1. P. reptans L. Plants 3-7 dm. tall: leaf-segments oblong, elliptic, or 

 oblong-lanceolate, 1.5-3 cm. long: calyx 5-6 mm. long and with ovate lobes 

 during anthesis, becoming 10-13 mm. long, and with lanceolate lobes at 

 maturity: corolla blue; lobes spatulate to obovate, about as long as the tube: 

 capsules oval or ovoid-oval, 5-7 mm. long. — Common, in rich thickets. — Spr. 



Family 5. SOLANACEAE. Potato Family. 



Herbs, shrubs, trees, or vines. Leaves alternate : blades entire, toothed, 

 or lobed. Calyx of 5 (4-6), more or less united sepals. Corolla of 5 (4-6), 

 more or less united petals. Androeeium of 5 (4— (3), stamens, the filaments 

 partly adnate to the corolla-tube. Gynoecium 2-carpellary or 3-5-carpel- 

 larv. Fruit a berry or a capsule. 



Fruit a berry. 



Corolla plicate : lobes usually Induplicate. 



Berry enclosed in the accrescent calyx : anthers not connected. 



Sepals nearly distinct, auricled : ovary 3-.5-celled. 1. Physalodes. 



Sepals united to near their tips, not auricled : ovary 



2-celled. 2. Physalis. 



Berry seated in the little changed calyx (except in Sola- 

 num rostratum) : anthers converging or connate. 

 Anther-sacs opening by terminal pores or short slits. 3. Solanum. 

 Anther-sacs opening lengthwise and introrsely. 4. Lycopersicox. 



Corolla little, if at all, plicate ; lobes imbricate. 5. Lycium. 



Fruit a capsule. 



Capsule prickle-armed : calyx circumscissile at the base. R. Datura. 



Capsule unarmed : calyx not circumscissile. 7. Petdnia. 



1. PHYSALODES Boehm. Annual herbs. Leaf-blades sinuate or lobed. 

 Flowers axillary, nodding. Calyx acressent : lobes cordate or sagittate, con- 

 verging, inflated. Corolla open-campanulate, slightly 5-lobed. Ovary 3-5- 

 celled. 



