62 PRIMULACE^. Steironema. 



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

 lobes. — Proc. Am. Acad. 1. 1:. S. heteropht/lla, liaf. 1. fc. S.florida, Baudo, 1. c, chiefly. Ana- 

 (jallis lutea, &c., Pluk. Aim. t. 333, f. 1. Lijsimackiu lanceolata, Walt. Car. 92. L. hybrida & 

 heterophi/lla, Michx. Fl. i. 126. L. citiata, var,, C'liapm. Fl. 280. L. decipieiis, Bertoloni, 

 Aman. — 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. h^bridum. Cauline leaves mostly petioled, from oblong to broadly linear. — 

 Lijsimachia lanceolata, var. hybrida, Gray, 1. c. L. hybrida, Jlichx. 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. angustifolia, Lam. lU. 

 i. 440, not Michx. L. heterophylla, Michx. 1. c. L. quadrijlora, 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, 1| to 2| 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'. lonrfifolia? & S. revnlntu, Eaf. 1. c. Lysimachia quadrijlora, 

 Sims, Bot. Mag. t. 660, inappropriate name. L. lompfolin, Pursh, Fl. i, l.'J.) (at least chiefly) ; 

 Duby in DC. 1. c. (excl. habitat Carol.) ; Gray, Man. ed. 2, 2T0 ; Torr. Fl. N. Y. ii. 10. L. 

 revoluta, Nutt. Gen. 1. c. L. angustifolia. 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. (Inhonovoi King Li/simackiis, 

 or from Xvai^% release from, //«/;/, 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 {miflcUe-sized) in a terminal and naked thyrsoid panicle: corolla destitute of dots and 

 colored streaks : ovules rather numerous. 



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

 whorls of 3 or 4, ovate to oblontj-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. 05. L. lanceolata, Pursh, Fl. ii. 729, ex char., not 

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

 Georgia, Boi/l,iii ,■ Lookout Mountain, Tennessee, Dr. Allen. A striking and rare species, 

 of the L. vulgaris section, most related to L. Dahurica of N. E. Asia. 



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

 tate with pellucid and at length dark-colored dots: corolla dark-dotted or sli-caked; the divisions 

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

 1,'landiilar, unequal: anthers barely oblong; capsule l-S-seeded,' sometimes 10-15-ovuled. — 

 Tridyiiia, Rat. 1. c. L. § Cassandra, Bigel. I. c. 



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

 cent : leaves in whorls of 4, sometimes of 0, •'>, or 0, rarely only in pairs or partly scattered, 

 oblong-lanceolate or the lower ovale, 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 



