71 8 FLORA. 



i. Trientalis Americana (Pers.) Pursh. Star-flower. Chickweel- 

 Win tergreen. (I. F. f. 2822.) Rootstock horizontal, sending up simple stem 

 like branches 0.7-2.5 dm. high, the leaves in a verticil of 5-10 at the summit. 

 Leaves membranous, lanceolate or oblong-lanceolate, acuminate at both ends, 

 sessile or short-petioled, minutely crenulate, 3-10 cm. long; pedicels filiform, erect, 

 2-5 cm. long; sepals narrowly lanceolate or subulate, cuspidate; flowers 8-12 mm. 

 broad; capsule snorter than the sepals. In damp woods and thickets, Lab. to the 

 N. VV. Terr., Va., III. and Mich. May -June. 



9. GLAUX L. 



A small succulent perennial leafy herb, with opposite entire obtuse fleshy leaves, 

 and minute dimorphous nearly sessile axillary pink or white flowers. Calyx 5- 

 parted, the lobes petaloid. Corolla none. Stamens 5, inserted at the base of the 

 calyx and alternate with its lobes; anthers cordate, attached by their backs to the 

 filaments. Ovary ovoid, glandular; ovules few; style filiform; stigma capitellate. 

 Capsule globose-ovoid, beaked, 5-valved at the top, few-seeded. Seeds ellipsoid. 

 [Greek, sea-green.] A monotypic genus. 



1. Glaux maritima L. Sea Milkwort. Black Saltwort. (I. F. f. 2823.) 

 Glabrous, pale or glaucous, 0.5-2 dm. high. Leaves oval, oblong or linear- oblong, 

 rarely somewhat spatulate, sessile, 4-12 mm. long; flowers about 3 mm. broad, 

 usually numerous; calyx-lobes oval; capsule nearly enclosed by the calyx. In salt 

 marshes and on sea-beaches, N. J. to Newf. ; in saline soil from Minn, to the N. W. 

 Terr., Neb. and Nev. ; on the Pacific Coast. Also in Europe and Asia. June- Aug. 



10. ANAGALLIS L. 



Herbs, with opposite or verticillate (rarely alternate) sessile or short-petioled 

 leaves, entire or nearly so, and small axillary peduncled flowers. Calyx 5 -parted, 

 the lobes lanceolate or subulate, persistent. Corolla deeply 5-parted, rotate, the seg- 

 ments entire or erose, convolute in the bud, longer than the calyx. Stamens 5 ; fila- 

 ments puberulent, or pubescent, distinct, or united into a narrow ring at the base; 

 anthers oblong, obtuse. Ovary globose; ovules numerous; stigma obtuse. Capsule 

 globose, circumscissile, many-seeded. Seeds minute, flat on the back. [Greek, 

 delightful.] About 15 species, mostly of the Old World. 



1. Anagallis arvensis L. Red or Scarlet Pimpernel. Poor Man's or 

 Shepherd's Weather-glass. (I. F. f. 2824.) Annual, diffuse; branches 1-3 

 dm. long, 4-sided. Leaves ovate or oval, membranous, sessile or somewhat clasp- 

 ing, 6-20 mm. long, black-dotted beneath; peduncles filiform, 1-4 cm. long, 

 recurved in fruit; calyx- lobes keeled, slightly shorter than the crenate glandular- 

 ciliate corolla-segments; flowers scarlet, sometimes white, usually with a darker 

 center, 4-6 mm. broad, opening only in bright weather; capsule glabrous, about 4 

 mm. in diameter. In waste places, Newf. to Fla., Minn, and Mex., and on the 

 Pacific Coast. Nat. from Europe. May-Aug. 



Anagallis arvensis coerulea (Lam.) Ledeb. Flowers blue; corolla-segments gla- 

 brous. Reported as sparingly occurring in waste places. 



n. CENTUNCULUS L. 



Low annual glabrous erect herbs, with alternate small entire sessile or short- 

 petioled leaves, or the lower opposite, and minute solitary axillary flowers. Calyx 

 4- 5-parted, persistent, the lobes longer than the corolla. Corolla 4-5 -cleft, marces- 

 ccnt, the tube subglobose, the lobes entire. Stamens 4 or 5, inserted on the throat 

 of the corolla; filaments short, distinct; anthers ovate or cordate, obtuse; stigma 

 capitate. Ovules numerous, amphitropous. Capsule globose, circumscissile, 

 many-seeded. Seeds minute, flat on the back. [Latin, diminutive of cento, a 

 patch.] Three species, of wide distribution. 



1. Centunculus minimus L. Chaffweed. False Pimpernel. (I. F. f. 

 2825.1 Slender, 2-15 cm. high. Leaves spatulate, obovate or oblong, 4-8 mm. 

 long; flowers sessile or nearly so. shorter than the leaves, mostly 4-parted, 2-4 mm. 

 broad; calyx-lobes linear or linear- lanceolate, acuminate; corolla pink; capsule 

 shorter than the calyx. In moisl soil, 111. and Minn, to Br. Col., Fla., Tex, and 

 Mex. Also in Europe and S. Am. April-Sept 



