ORDER 78. PRIMULACEJS. 505 



5 L. longifolia Ph. PRAIRIE MONEYWORT. St. slender, 4-angled, flexuoua, 

 branched above; Ivs. linear-shining, rigid, sessile, margin revoiute; fls. opposite or 

 mostly quaternate and terminal on the stem and branches ; sep. lance-linear, 

 acuminate ; pet. longer than the calyx, roundish-ovate, erose-dentate, abruptly 

 acuminate. Common in low prairies, W. States. The largo yellow flowers are 

 very conspicuous among the grasses. Stems 12 20' high, purple. Leaves 2 

 3' by 2 3", coriaceous, deep green. Flowers numerous, 9" diam., of a brilliant 

 yellow. Anth. large. Jl. (L. revoluta Nutt) 



6 L. hy'brida MX. Smooth and erect ; Ivs. flat, veiny, oblong -lanceolate or lance- 

 linear, acute at each end (the lower often shortened and obtuse), petioles ciliate, 

 short ; fls. nodding ; ped. axillary ; stam. united in a very short tube at base, 

 with intermediate processes. If Moist meadows and prairies, Can. and U. S. 

 The fls. resemble those of tho L. ciliata. St. If to 18' high, simple or branched. 

 Lvs. 1 to 3' by 3 to 8", the two upper pairs usually approximate, forming a whorl 

 of 4, with 4 axillary fls. Jl. (L. angustifolia Lam. L. heterophylla MX.) 



7 L. ciliata L Subsimple, erect ; Ivs. opposite, rarely quaternate, ovate, sub- 

 cordate or ovate-lanceolate, petioles ciliate upper side ; fls. nodding mostly oppo- 

 site ; sta. distinct, with 5 abortive filaments. U In gravely soils and near streams, 

 U. S. and Can. Root creeping. Stem somewhat 4-sided, 2 3f high, simple or 

 with' a few opposite branches. Leaves large, pointed, somewhat cordate at base, 

 on petioles fringed with cileae, the upper ones apparently quaternate. Flowers 

 large, yellow, axillary. Stamens inserted into a ring. Jl. 



/?. TONSA. Petioles entirely destitute of cilese ; Ivs. smaller. Mts. E. Tenn., 

 near the Cumberland Gap. Plants G to 18' high. 



8 L. radicans Hook. St. erect at base, glabrous, then decumbent, long, trailing, 

 branching and rooting at the joints; Ivs. lance-ovate, gradually acute, the long 

 petioles more or less ciliate ; fls. small, loosely paniculate on the slender branches. 

 Wet places, Va. (Aikin) to La, (Hale). Sis. 2 to 4f long. Petioles half as 

 long (!') as the leaves. Fls. half as large as in No. 4. 



9 L. nummularia L, MONEYWORT. St. weak, trailing; Ivs. roundish, subcor- 

 dats, obtuse, on very short petioles; fls. opposite, axillary, large, sep. ovate, sub- 

 cordate, acuminate. Found at Middlebury, Yt. (Prof. Lathrop), and shores of L. 

 Mich. (Nutt.). Eur. 



10. ANAGAL/LIS, L. SCARLET PIMPERNEL. POOR MAN'S WEATHER- 

 GLASS. (Gr. avayeAaw, to laugh ; it is said to be medicinally effica- 

 cious in hypochondria.) Calyx 5-parted ; cor. rotate, deeply 5-parted, 

 longer than the calyx, tube ; sta. 5, hirsute ; anth. introrse ; caps, 

 globous, inembranaceous, circumscissile. Herbs with square stems and 

 (mostly) opposite Ivs. Ped. axillary, solitary. (Fig. 39.) 



A. arvensis L. Procumbent, branched; Ivs. broad-ovate, opposite or ternato, 

 sessile ; ped. longer than the leaves ; sep. linear-lanceolate, about equaling tho 

 petals ; pet. crenate-glandular. (T) A trailing plant, in fields, road-sides, &c., U. 

 S. (except the colder parts of N. Eng.), and in almost all other countries. Stem 

 6 20' long, with elongated branches, or simple. Leaves 6 8" by 46". Fls. 

 small but pretty, with scarlet petals, opening at 8 o'clock, A. M., and closing at 2 

 p. jr., in damp weather not open at all. Jn. Aug. Dr. BueL of Killington, Ct. f 

 sent us specimens with blue flowers! 



11. CENTUN'CULUS, L. FALSE PIMPERNEL. Calyx 4-parted ; cor. 

 urceolate-rotate, 4-cleft, shorter than the calyx ; sta. 4, beardless, united 

 at base; caps, globous, circumscissile; seeds very minute. CD Very 

 diminutive, with alternate Ivs. Fls. axillary, solitary, subsessile. 



C. minimus L. Erect or ascending, branched; Ivs. subsessile, ovate or lance- 

 ovate, obtusish, entire, alternate, lower opposite; sep. linear-subulate, equaling 

 the capsule. Wet places, 111. (Mead), and Southern States. Plant 1 to 2' high in 

 111., but 3 to G' long in La. Leaves about 2" by 1". Flowers reddish? Jl. 



