Centunculus. LXXXII. PRIMULACEiE. 387 



3. L. HYBRiDA. Michx. Hybrid Loosestrife. 



Smooth, erect, branched above ; Ivs. narrowly lanceolate, acute at each 

 end, opposite, petioles ciliate, short ; fis. nodding ; ped. axillary ; sta. united in 

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

 and prairies, Can., N. H. ! to Car., W. to la. ! and 111. Mead. 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 which bears a whorl of 4 leaves and 4 flowers at the 

 end. Stamens with intermediate processes. Jl. 



4. L. auADRiFOLiA. Four-lcaved Loosestrife. 



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

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

 tuse. — % In low grounds, 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, 

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



5. L. HETEROPHYLLA. Michx. Variaus-leaved 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; Jis. on long peduncles, opposite 

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

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

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

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



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



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

 long, sessile, margin revolute ; fls. opposite or mostly quaternate and terminal 

 on the stem and branches ; scp. 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. 



Gt. avayeXao), to laugh ; it is said to be medicinally efficacious in expelling h5T)ochondria. 



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 with, square stems and. (mostli/) opposite 

 Ivs. Ped. axillary, solitary. 



A. ARVENSis. Scarlet Pimperrwl. Poor Manh Weather-glass. 



Procumbent, branched ; Ivs. broad-ovate, opposite or ternate, sessile ; fed. 

 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 

 b — 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. CENTUNCtJLUS. 

 Calyx 5-parted ; cor. urceolate-rotate, 4-cleft, shorter than the ca- 

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

 seeds very minute. — ® Very diminutive, with alternate Ivs. Fls. 

 axillary., solitary, subsessilc. 



C. MINIMUS. (C. lanceolatxxs. Michx.') Bastard Pimpernel. 

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

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

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

 dell). Leaves about 2" by 1". Flowers reddish "? Jl. 

 33* 



