Centunculus. LXXXII. PRIMULACE-E. 387 



3. L. HYBRiDA. Michx. Uiihrid Loosestrife. 



Smootli, erect, branthcd above ; Irs. narrowly lanceolate, acute at each 

 end, opposite, petioles ciliale, short; Jls. nocklijij?; pci/. axillary; sla. united iu 

 a very short tube at base, with intermediate processes. — 7|. Grassy meadows 

 and prairies. Can., N. 11. ! to Car., W. to la. ! and 111. Almd. Its stem and 

 flowers resemble those of L. ciliata, from which species it is chiefly distinguish- 

 ed by its narrower. lanceolate, never cordate leaves, and its more numerous and 

 leafy branches, each of Avhich bears a whorl of 4 leaves and 4 flowers at the 

 end. Stamens with intermediate proces.ses. Jl, 



4. L. ai'AnRiFOLU. F\)u r-lcaccd Loosestrife. 



Simple, erect; lis. vcrticillate, in 4s, rarely in 5s or 3s, sessile, lanceolate, 

 acuminate, punctate; ped. axillary, 1-flowered, in 4s (3s or 5s); pet. oval, ob- 

 tuse. — Z|. In low j2;rounds, river banks, Can. to Car. and Ky. Stem 18' high, 

 somewhat hairy, simple, with many whorls of 4 — 5 leaves, each bearing a flow- 

 er-stalk in its axil. Corolla yellow, with purple lines. Stamens unequal, 

 united at base into a short tube. Anth. purple. Jn. 



5. L. HKTEROPHYLLA. Michx. Various-Icaved Loosestrife. 



Erect, subsimple ; Ivs. opposite, linear-lanceolate, acute, entire, margin 

 not reflexed, ciliate at base and on the short petiole, lower ones shorter, oval, 

 obovate or even roundish ; distinctly petiolate ; fls. on long peduncles, opposite 

 or apparently quaternate at top of the stem; sta. subequal, with intervening 

 teeth.— Hills and woods, Ohio, Clark! 111. Jcnney I to Ga. Stem 12—18' high, 

 branched from the base if at all. Leaves about 2^' by 5", lower 1' by \\ all 

 paler beneath. Flowers very similar to those of L. ciliata. Jn. Jl. 



6. L. LONGiFOLiA. Pursh. (L. revoluta. Nutt.) Prairie Moneywort. 



St. slender, 4-angled, flexuous, branched above ; Irs. opposite, linear-ob- 

 long, sessile, margin revolute ; 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 large 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. 



8. ANAGALLIS. 



Gr. avayeXao), to laugh ; it is said to be medicinally efficacious in expelling hj'pochondria. 



Calyx 5-parted ; cor. rotate, deeply 5-parted, longer than the ca- 

 lyx, tube ; sta. 5, hirsute ; anth. introrse ; caps, globose, membra- 

 naceous, circumscissile. — Herbs witli square stems and [mostly) opposite 

 Ivs. Ped. axillary., solitary. 



A. ARVENSis. Scarlet Pimpernel. Poor Man's Weather-glass. 



Procumbent, branched ; Irs. broad-ovate, opposite or ternate, sessile ; ped. 

 longer than the leaves; sep. linear-lanceolate, about equaling the petals; pet. 

 crenate-glandular. — A beautiful trailing plant, in fields, roadsides, &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 4 — 6". 

 Flowers opposite, small but beautiful, with scarlet petals, opening at 8 o'clock, 

 A. M., and closing at 2 P. M., in damp weather not open at all. Jn. — Aug. 



9. CENTUNCULUS. 



Calyx 5-partcd ; cor. urceolate-rotate, 4-clcft, shorter than the ca- 

 lyx ; sta. 4, beardless, united at base ; caps, globose, circumscissile ; 

 seeds very minute. — ® Very diminutive^ u-ith alternate Ivs. Fls. 

 axillary, solitary, subsessile. 



C. MINIMUS. (C. lanceolatus. Mich.r.) Bastard Pimpernel. 



Erect, branched ; Ivs. subsessile, ovate or lance-ovate, obtusish, entire, al- 

 ternate, lower opposite; sep. linear-subulate, equaling the capsule. — Wet places, 

 111. Mead! and Southern States. Scarcely more than 1—2' high (4 — 6", Rid- 

 dcU). Leaves about 2" by 1". Flowers reddish 1 Jl. 

 33* 



