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. Bare, in low thickets, near Pleasant Grove. Schists. Spr. 



3. P. sufoulata 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 1 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. Common, in swamps. Early sum. WILD SWEET-WILLIAM. 



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

 long-elliptic, 8-20 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 cm. long, 1.5-2 mm. thick; limb 15-17 mm. broad, the 

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

 valley. Occasional, in thickets. Sum. 



2. POLEMONIUM [Tourn.] 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 (4r-6), 

 more or less united petals. Androecium of 5 (4-6), stamens, the filaments 

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

 lary. 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. 0. DATURA. 



Capsule unarmed : calyx not circumscissile. 7. PETUNIA. 



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. 



