94 Introduction to Botany. 



2. Convolvulus repens, L. (L., repens, trailing.) TRAILING BINDWEED. 

 I to 3 feet long, trailing or twining, pubescent or tomentose. Leaves sagittate with 

 basal lobes obtuse or rounded, sometimes cordate. Peduncles i -flowered. Flowers 

 white. Stigmas oblong. Calyx 2-bracted. In dry fields. 



3. Convolvulus spithamaeus, L. UPRIGHT BINDWEED. Erect or ascending, 

 6 to 12 inches high, somewhat pubescent. Leaves mostly oblong-oval and short- 

 petioled. Flowers white, solitary on long peduncles. Calyx subtended by 2 large 

 oval bracts. Stigmas thick, oblong. In dry, sandy, or rocky soil. 



4. Convolvulus arvensis, L. (L., arvensis, belonging to the fields.) SMALL 

 BINDWEED. Stems slender, trailing or decumbent, i to 2^ feet long, nearly or 

 quite glabrous. Leaves sagittate at the base and somewhat acute at the apex. 

 Peduncles i-4-flowered, but commonly 2-flowered. Corolla short-funnel-form, 

 white or pink. Peduncles, and usually the pedicels, bracted. Calyx not bracted. 

 Stigmas linear. In fields and waste places. 



POLEMONIACE^. PHLOX FAMILY. 



Herbs. Flowers in corymbose or paniculate clusters, perfect and 

 mostly regular. Calyx 5 -cleft, tubular or campanulate. Corolla 5-lobed, 

 tubular, campanulate, or rotate. Stamens 5, inserted on the tube of the 

 corolla and alternate with its lobes. Ovary superior, 3-celled ; style 

 3-lobed. Capsule few- to many-seeded, 3-valved. 



I. PHLOX. 



(Gr., phlox, flame, an ancient name for Lychnis.) 



Perennial or annual herbs, with opposite, entire leaves, and flowers 

 borne in cymose, mostly bracted, clusters. Calyx tubular or tubular- 

 campanulate, becoming distended and rupturing by the ripening capsule. 

 Corolla salver-form with broad, spreading lobes. Stamens included, 

 inserted at different heights on the corolla tube. Ovules 1-4 in each 

 of the 3 cavities x>f the ovary. 



1. Phlox maculata, L. (L., maculatus, stained or spotted.) WILD SWEET 

 WILLIAM. Stems erect, i to 5 feet high. Sometimes puberulent, and often 

 flecked with purple. Leaves, excepting the uppermost, opposite, ovate to ovate- 

 lanceolate, 2 to 5 inches long. Flowers short-pediceled, borne in elongated, leafy 

 panicles. Calyx teeth lanceolate. Flowers mostly pink or purple. 



2. Phlox glaberrima, L. (L.,glaberrimus,very smooth.) SMOOTH PHLOX. 

 Stems i to 3 feet high, smooth and slender. Leaves linear-lanceolate, or linear 

 below, 15 to 4 inches long. Flowers in cymes grouped in a corymbose cluster. 

 Calyx teeth lanceolate-awl-shaped. Corolla mostly pink, with obovate lobes 

 longer than the tube. Prairies and open woods. 



3. Phlox pildsa, L. (L., pilosus, downy.) DOWNY PHLOX. Stems slender, 

 i to 2 feet high. Plant downy or hairy, sometimes glandular. Leaves i to 4 inches 



