62 PRIMULACE^:. Steironema. 



conspicuously erose and cuspidate-acuminate, slightly exceeding the lanceolate calyx- 

 lobes. Proc. Am. Acad. I.e. S. heteropkytta, llaf. I.e. S.florida, Baudo, 1. c., chiefly. Ana- 

 gaUis lutea, &c., Pluk. Aim. t. 333, f. 1. Lysimachia lanceolata, Walt. Car. 92. L. hybrida & 

 heterophylla, Michx. Fl. i. 126. L. ciliata, var., Chapm. Fl. 280. L. decipiens, Bertoloni, 

 Amccn. Low grounds and thickets, western parts of Canada to Florida, and Nebraska 

 to Louisiana. Polymorphous ; the extremes in the following varieties, the first of which 

 verges to the two preceding species. 



Var. hybridum. Cauline leaves mostly petioled, from oblong to broadly linear. 

 Lysimachia lancc-olata, var. hybrida, Gray, 1. c. L. hybrida, Michx. 1. c. L. heterophylla, Ell., 

 Nutt., &c. Commoner northward and westward. 



Var. angustifolium. Stems more branched, a span to 2 feet high : cauline leaves 

 linear, acute at both ends, more sessile, a line or two broad. L. ani/ustifolia, Lam. 111. 

 i. 440, not Michx. L. hcten>i>h y/ta, Michx. I.e. L. qnadriflora, Ell., hardly of Bot. Mag. 

 The more marked form mainly southward. 



* * Leaves of firmer texture and nearly veinless, mainly sessile : corolla deeper yellow. 

 S. longifolium, Gray, 1. c. Glabrous : stems simple or very sparingly branched, slender, 

 quadrangular, a foot or more high: cauline leaves all narrowly linear and sessile, mostly 

 obtuse (2 to 4 inches long, 1A to 2-i- lines wide), lucid, the midrib prominent beneath, the 

 margins narrowly revolute : corolla three fourths inch wide; the divisions somewhat ob- 

 ovate, longer than the calyx. S. lonyifolia? & S. rrroluta, Kaf. 1. c. Lysimachia quadriflora, 

 Sims, Bot. Mag. t. Gb'O, inappropriate name. L. lonnifolia, Pursh, Fl. i. 135 (at least chiefly) ; 

 Duby in DC. 1. c. (excl. habitat Carol.) ; Gray, Man. ed. 2, 273; Torr. Fl. N. Y. ii. 10. L. 

 revoltita, Nutt. Gen. I.e. L. anf/itntl/iilin. Gray, Man. ed. 1, not Lam. Banks of streams, 

 Lake Winnipeg to Niagara, and Wisconsin to W. Virginia ; apparently not farther south. 



8. LYSIMACHIA, Tourn. LOOSESTRIFE. (In honor of King Lysimachus, 

 or from Ai'tftc, release from, f<//y, strife.)-- A genus of wide distribution, but 

 very few species in America, and these rather polymorphous. Ours are perennials ; 

 fl. summer. 



1. LYSIMACHIA proper. Corolla yellow, strictly rotate, and deeply parted, 

 with hardly any tube, and no teeth between the lobes : stamens more or less mon- 

 adelphous at base, often unequal in length: leaves opposite or verticillate, or 

 some abnormally alternate. 



* Flowers (middle-sized) in a terminal and naked thyrsoid panicle: corolla destitute of dots and 

 colored streaks : ovules rather numerous. 



L. Fraseri, Duby. Almost glabrous : stem 3 to 5 feet high, sulcate-angled : leaves in 

 whorls of 3 or 4, ovate to oblong-lanceolate, acutely acuminate (3 to 5 inches long), more 

 or less reddish-dotted, mostly acute at base, very short-petioled ; the upper smaller and 

 commonly only opposite : panicle many-flowered, minutely glandular : bracts small and 

 subulate : divisions of the calyx linear-lanceolate, valvate in the bud, margined by a nar- 

 row reddish line, moderately shorter than the obovate obtuse divisions of the corolla : 

 glandular filaments somewhat unequal, united into a cup at base : anthers narrowly 

 oblong, arcuate in age. DC. Prodr. vii. 65. L. lanceolata, Pursh, Fl. ii. 720, ex herb., not 

 Walt. S. Carolina (Catesby in herb. Sherard, and Fraser in herb. DC.); Columbus, 

 Georgia, Boykin ; Lookout Mountain, Tennessee, Dr. Allen. A striking and rare species, 

 of the L. rii/i/nris section, most related to L. Dahurica of N. E. Asia. 



* * Flowers (small) in a virgate terminal raceme or in the upper axils : stem erect : leaves punc- 

 tate with pellucid ami at l"ii^th dark-colored dots: corolla dark-dotted 'or streaked; the divisions 

 longer than the narrow lanceolate sepals: filaments conspicuously monadelphous at base and 

 glandular, unequal: anthers barely oblong: capsule 1-5-seeded, sometimes 10-15-ovuled. 

 Trirlyiiin, Hal". 1. c. L. Cassandra, Bigel. 1. c. 



L. quadrifolia, L. Stem a foot or two high, simple, leafy throughout, somewhat pubes- 

 cent : leaves in whorls of 4, sometimes of 3, 5, or 6, rarely only in pairs or partly scattered, 

 oblong-lanceolate or the lower ovate, more or less acuminate (1 to 3 inches long), equal, 

 and with flowers on filiform pedicels from most of the upper axils, or sometimes the upper 

 reduced to foliaceous bracts and the flowers loosely racemose : divisions of the corolla 



