EXOGENS. 14X 



monotypic (Bentham and Hooker) ; fls. white. W. Eur., N. Af. 

 2. Pentacraena, 2 or 3 spec, Oregon to Chili. 



Ord. 137. Caryophyllaceae.— Characters of Alliance ; but sep. 4-5, 

 free or connate ; pet. fi'ee ; disk sometimes annular or raised into a 

 gynophore. Boll dehisc. by valves' or apical teeth ; rarely pyxidium 

 or berry. Emb. peripheric. Perisperm floury, fleshy, rarely 0. Infl. 

 cj'mose. Lvs. opp., entire, 1-3-nerved, often fleshy. Herbs, rarely 

 Shrubs. Mts., hedges, rocks, wastes, chiefly in temperate and cold 

 regions, both worlds, usually low, spreading. About 35 gen. ; about 

 800 spec. 3 Tribes : 



Tribe 1. Pet. usually small; no claws nor scales. Style 3-2-fid 

 above. Sta. 5 or fewer, Stip. scarious or 0. 11 gen., 62 spec, both 

 worlds. 1. Stipulicida setdeea, monotypic ; Q, low, tufted, forking ; 

 fls. small, white. Boll 3-valved. N. C, Ga. to Ela. 2. Polycarpaea, 

 24 spec, both worlds ; and 3. Polycarpon, 6 spec, both worlds ; 0, Q|., 

 low ; fls. small, cymed or panicled, sepals showy. Tribe 2. Pet. 

 sometimes ; no claws nor scales. Styles distinct. Lvs. usually 

 exstip. 13 gen., nearly 300 spec. 1. Spergularia. Pet. 5; sty. 3-5. 

 Stip. showy. Pis. lilac, pink. 3 spec , small weeds, sea-coasts, both 

 worlds. S. rubra, prostrate, Q, fls. sol., red. Can. to Fla. 2. Sper- 

 gula, Spukket. Pet. 5. Sty. 5. Fls. white. Q, low ; making fine 

 turf on lawns and good forage. 3 spec, Eur. S. arvenais, introduced 

 into U. S., Can. to Pla. 3. Arenaria, Sandwort. Pet. 5. Sty. usu- 

 ally 3. Small, Q, Q|.; fls. white. 130 spec, widely distributed, both 

 worlds. A. serpyllifblia, lvs. minute, ciliate. W. Eur. ; common in 

 TJ. S. A. (Alsine) squarrbsa, N. Y. to Pla. A. pdtula (resembles 

 Gypsophila) ; Va., Ky., Tenn. 4. Sagina, Pearl wort. Pet. 4^5 or 0. 

 Sty. 4-5. Low, 0, QL- 8 spec, both worlds. S. apetala. Pet. 0. 

 Low, 0, cEespitose. Eur. ; N. Y., Penn. to 111., Tenn. (pavements 

 of Nashville. Gattinger). S. procumbens. Pet. 4-5. Q|., spreading ; 

 springs, damp rocks. Eur. ; Maine to S. C. S. EllioUii. Pet. 5. (2), 

 cjespitose, low ; sands and dry woods. S. States. 5. Stellaria, Chick- 

 WKED. Pet. 2-fid, 4-5-0. Sty. 3-4-5. Pis. white, showy. 70 spec, 

 both worlds. S. media, 0, spreading, flaccid ; lvs. l'-3' long. Eur. ; 

 nat. from N. Eng. to Pla. and La. S. crassifblia, lvs. fleshy. Springs, 

 damp spots, Eur. ; 111., Ky., S. S. (Sagina) fontindlis. Pet. 0; sta. 

 4-6. Ky. 6. Cerdstium. Near Stellaria; pet. sometimes entire. 

 Usually ; hairj' or glandular. 100 spec, both worlds. C. vulgdtum. 

 Mouse-bar Chickweed. 5'-10' high ; pet. small, lvs. ovate. Eur. ; 

 common in E. and S. U. S. C. arvense, Q|., 5'-10' high ; pet. large, 

 lvs. linear. Eur. ; rocks, N. Eng. to Wis., S. 



Tribe 3. Calyx monosep., 5-toothed or 5-lD'Bedr Pet. and sta. 

 hypog., on a gynophore, rarely sessile. Pet. with scales at top of claw, 

 forming a corona, or with winged bands ; rarely naked. Sty. distinct. 

 Lvs. exstip. 11 gen , 410 spec, both worlds. 1. Lychnis. Sty. 5-4. 

 0, (2), QJ.. 30 spec, both worlds. L. Flos-cuculi, Raqoed Eobin ; 

 Q|., downy, glutinous ; pet. 4-cleft ; fls. red, panicled. Boll 5-toothed 

 at apex. Eur. L. (Melandrium) vesperiina ; fls.- visually (^ 9i 

 white, vespertine. @, Eur. L. (M.) diiAca, similar; J* fl. (with 

 abortive pistil), vert, sec. Fig. 174, A. Eur. L. (Agrostemma) 

 Githdgo, Corn Cockle; hairy; lvs. linear; fls. large, long-peduncled, 

 showy, red-purple. Boll, Fig. 179, F; Fig. 197, E. Grain-fields, 

 Eur. ; nat. in U. S. 2. Cuciibalis bdccifer, Campion ; monotypic. 



