CARVOI'IIVLLACl<:.E. Tl'INK FAMILY.) 31 



Order 10. FKANI4i:.\IACE.E. 



Low pereimial herbs or undershrubt!, with opposite cutiro leavcM and 

 no stipules; distinguisiied from Silenete mainly by the parietal placenta) 

 and oval or oblong anatropoiis tweeds witli a straight embryo. 



1. FRANKENIA, L. 



Calyx tubular or prismatic, 4 or 5-lul>ed. Petals 4 or 5, clawed and hear- 

 ing a crown. Stamens G. Ovary 1-celled: style 2 to 4-fleft into filiform 

 divisions. Capsule included in the persistent caly.\. — Leaves small, mostly 

 crowded, and also fascicled in the axils : Howers small, .soHtary and ses.sile in 

 the forks of the stem or becoming cymose-clustered on the branches, white. 



1. r. Jamesii, Torr. Much branched from a woody ba.se, 6 to 10 inches 

 high : leaves linear, strongly revolute on the margins, the fascicled ouea 

 shorter : limb of petals erose-denticulate at tip. — S. Colorado. 



Order 11. CARYOPIIYLL..4CE.E. (Pink Family.) 



Herbs, with regular and mostly perfect iiowers, 4 or 5 persistent 

 sepals, 4 or 5 petals (sometimes wanting), the distinct stamens com- 

 monly twice as many, ovary oue-eelled with a free central placenta, the 

 seeds reniforni. — Stems usually swollen at the nodes. Leaves opposite. 

 Styles 2 to 5, mostly distiuct. Fruit a capsule opening by valves, or by 

 teeth at the summit. Stipules none in our genera. 



Tribe I. Sepals unitefL Petals with a conspicuous claw, usually with an appeuda^'e 

 (crown) at the base of the blade, borne witli the stamens on a stipe under the ovarv. 

 Capsule dehiscent at the toothed summit. Flowers comparatively large. — SiLENEiS. » 



1. Silene. Calyx 5-toothed. Styles 3. 



'2. Lychnis. Calyx 5-toothed or 5-lobed. Styles 4 or 5. 



Tribe II. Sepals distinct or nearly so. Petals without crown or distinct claw, inserted 

 with the stamens on the margin of a disk under the sessile ovary, sometimes incon- 

 spicuous or wanting. — Alsine-b. 



* Styles (when of the same number) opposite the sepals. 



3. Cerastium. Capsule cylindric, opening at the toothed apex Petals emarprfnate or 



bilid. Styles usually 5. 



4. Stellaria. Capsule short, splitting to the base. Petals C-<'lpft or none. Styles mostly .1. 



5. Arenarla. Differs from the last chiefly in the entire petnis, the.se rarely wanting 



• • Styles alternate with the sepals and of the same numl>er. 



6. Sagina. Capsule 4 or 5-valved. Petals entire or wanting. Styles 4 or S 



1. SILENE, L. r.vTrnrLV. 



Calyx tubular, 10-nerved. Petals entire, notched, or bifid. Capsule usually 

 6-toothed. — Annual or mostly perennial herbs. 



* Snponaria, an introduced genus, has a terete calyx. petaN nnt rrownod, and two stylra. 

 i'. Vaccaria, L., is a smooth annual, with ovate-lanceolate leaves, pale n><l flowers In cor- 

 ymbed cymes, and calyx enlartred and wing-angled in fruit — Koccaria vxUgarU of Gray'f 

 Manual. Very generally introduced. 



