CARYOPHYLLACE.E. (PINK FAMILY.) 85 



+_^_ Viscid-pubescent; flowers white or nearly so, opening at night, sweet-scented. 



S. NOCTURNA, L. (NIGHT C.) Leaves short, the lower spatulate, the 

 upper linear ; flowers small, alternate in a l-sided spike; petals 2-parted. 

 Introduced sparingly in Pa., according to Schweinitz. (Adv. from Eu.) 



S. NOCTIFL6RA, L. (NIGHT-FLOWERING C.) Viscid-hair y , tall (1-3 

 high) ; lower leaves large arid spatulate, the upper lanceolate ; flowers few, 

 peduncled ; calyx-tube elongated (over V long), soon ovoid, with awl-shaped 

 teeth ; petals rather large, 2-parted, crowned. Cultivated grounds. 



5. LYCHNIS, Tourn. COCKLE. 



Styles 5, rarely 4, and pod opening by as many or twice as many teeth ; 

 otherwise nearly as in Silene. Calyx in one species with leaf-like lobes. 

 (Ancient Greek name for a scarlet or flame-colored species, from Ai/x^oy, a 

 light or lamp.) 



L. VESPERTINA, Sibth. (EVENING L.) Biennial, usually dioecious, viscid- 

 pubescent, in foliage, etc., like Silene noctiflora; but 5 styles, calyx much 

 shorter (7-9" long), with lance-linear teeth, void flowers white or pinkish, open- 

 ing at evening. Cult, or waste grounds ; scarce. (Adv. from Eu.) 



L. DIURNA, Sibth. (RED LYCHNIS.) Resembling L. vespertina, but less 

 viscid, the calyx usually shorter (4-6" long), and the flowers red, opening in 

 the morning. Rarely spontaneous. (Adv. from Eu.) 



L. GITH\GO, Lam. (CORN COCKLE.) Annual, clothed with long soft 

 appressed hairs; flowers long-peduncled ; calyx-lobes similar to the long and 

 linear leaves, surpassing the broad and crownless purple-red petals, falling off 

 in fruit. (Agrostemma Githago, L.) In wheat-fields. (Adv. from Eu.) 



L. FLOS-CIJCULI, L. (RAGGED ROBIN.) Perennial, erect, slightly downy 

 below, viscid above ; leaves narrowly lanceolate ; flowers in loose panicles ; 

 calyx short, glabrous; petals red, 4-lobed, lobes linear. Moist or marshy 

 places ; New Eng. and N. Y. (Adv. from Eu.) 



6. ARENARIA, L. SANDWORT. 



Sepals 5. Petals 5, entire, sometimes barely notched, rarely wanting. Sta- 

 mens 10. Styles 3, rarely more or fewer, opposite as many sepals. Pod short, 

 splitting into as many or twice as many valves as there are styles, few - many- 

 seeded. Low, usually tufted herbs, with sessile exstipulate leaves and small 

 white flowers. (Name from arena, sand, in which many of the species grow.) 

 The following sections are by many botanists taken for genera. 

 1. ARENARIA proper. Pod splitting wholly or part-way down into 3 or at 

 length into 6 valves ; seeds many, naked at the hilum. 



A. SERPYLLIF6LIA, L. (THYME-LEAVED SANDWORT.) Diffusely branched, 

 roughish (2 - 6' high) ; leaves ovate, acute, small ; cymes leafy ; sepals lanceo- 

 late, pointed, 3 - 5-nerved, about equalling the petals and 6-toothed pod. A 

 low annual ; sandy waste places. June -Aug. (Nat. from Eu.) 



2. ALSINE. Pod splitting to the base into 3 entire valves ; seeds many, usu- 

 ally rough, naked at the hilum ; flowers solitary and terminal or cymose; 

 root in our species perennial, except in n. 4. 



* Leaves small, rigid, awl-shaped or bristle-shaped. 



1. A. Caroliniana, Walt. (PINE-BARREN S.) Densely tufted from a 

 deep perpendicular root ; leaves closely imbricated, but spreading, awl-shaped, 

 short, channelled ; branches naked and minutely glandular above, several-flow- 

 ered; sepals obtuse, ovate, shorter than the pod. (A. squarrosa, Michx.) In 

 pure sand, S. New York, N. J., and southward along the coast. May - July. 



2. A. Mich.au.xii, Hook. f. Erect, or usually diffusely spreading from 

 a small root, smooth ; leaves slender, between awl-shaped and bristle-form, with 



