280 ALSINACEAE 



perigynous. Ovary 1-celled, many-ovuled; stigmas sessile. Capsule 3-valved. 

 Cotyledons accumbent. 



1. L. texana Hook. Annual, branched at the base, 5-15 cm. high; leaves 

 4-6 mm. long; flowers on secund recurved branches; sepals straight or slightly 

 curved; cajjsule shorter than the calj-x; seeds obovate. Dry hills: Tex. — Neb. 

 Plain. Ap-Je. 



Family 45. CARYOPHYLLACEAE. Pixk Family. 



Herbs with narrow opposite leaves, without stipules, often connate at the 

 base. Flowers perfect, polygamous, or dioecious, cymose. Calyx of 5 or 

 4 united sepals. Petals 5 or 4, distinct, with a narrow claw, often vith 

 scale-like appendages (the crown) at the junction of the claw with the blade. 

 Stamens usually twice as many as the sepals. G3'noecium of 2-5 united 

 carpels; styles 2-5. Fruit a 1-celled or partially 2-5-celled capsule, opening 

 by 2-5 valves at the apex. 



Calyx with at least twice as many ribs (usually 10) as calyx-teeth, running both into the 

 teeth and the sinuses. 



Styles 5, alternate with the foliaceous calyx-lobes. 1. Agrostemvlv. 



Styles either 5 and oppcsite the short calyx-lobes or fewer than 5. 



Styles mostly 3; capsule usually septate at the base. 2. Silexe. 



Styles 5; capsule 1-celled to the base. 3. Wahlbergella. 



Calyx 5-angled or 5-ribbed. 



Petals with a crown; calyx not strongly angled. 4. Sapoxaria. 



Petals without a crown; calyx strongly 5-angled. 5. Vacc.\rl\. 



1. AGROSTEMMA L. Corn Cockle, Corn Campion. 



Annual pubescent herbs, with opposite leaves. Flowers solitary at the end 

 of the branches. Calyx oblong, not inflated, 10-ribbed, 5-lobed; lobes linear, 

 elongate and foliaceous. Petals 5, clawed, without appendages or crown; 

 blade obovate or cuneate, emarginate. Stamens 10. Styles 5, opposite the 

 petals. Capsule 1-celled. Seeds numerous. 



1. Agrostemma Githago L. Stem erect, 3-10 dm. high, densely pubescent; 

 leaves linear-lanceolate, erect, 5-10 cm. long; calyx-lobes 2-3 cm. long; petals 

 red; blade 1..5-2 cm. long. Waste places and grain fields: Newf. — Fla. — Calif. 

 • — B.C.; nat. from Eu. Jl-S. 



2. SILENE L. Catchfly, Campion. 



Annual or perennial herbs. Leaves opposite, flat, entire. Flowers perfect, 

 in terminal cymes, or rarely solitary. Calyx with a more or less inflated tube, 

 10-many-nerved, with short, erect, or spreading lobes. Petals 5, red, pink, or 

 white, with a crown, and usually cleft or divided. Stamens 10. Ovary 1-ceUed, 

 but usually with partial partitions at the base. Styles 3, seldom more. Cap- 

 sule opening by twice as many tooth-like valves as there are styles. Ovarj' 

 with a more or less developed stipe. Seeds tuberculate or echinate. 



Annuals. 



Glabrous or nearly so. or the upper nodes glutinous. I. S. anlirrhina. 



Viscid-pubescent or hirsute throughout. 2. S. noctiflora. 



Perennials. 



Calyx mostly lO-nerved, rarely strongly inflated in fruit, not constricted at the 

 mouth. 

 Caulescent herbs, rather tall, not densely matted, ■ivith rootstocks. 



Inflorescence paniculate or thyrsoid at the end of the stem, not leafy; flowers 

 more than 1 cm. long. 

 Blade of the petals 2-parted and cleft into 4-6 Unear segments. 



3. S. oregana. 

 Blades of the petals bifld; each lobe sometimes with a lateral tooth. 



Blade small, scarcely exceeding the small appendages; plant viscid- 

 tomentose. 4. S. Spaldingii. 



Blades conspicuous, much longer than the appendages; plant viscid- 

 puberulent or glabrous. 

 Stipe of the capsule over 5 mm. long; fruiting calyx distinctly con- 

 tracted below. 5. S. repens. 

 Stipe of the capsule short, less than 5 mm. long; calyx slightly if 

 at all contracted below. 



