Order 78.— PEIMWORTS. 243 



2. DODECATH'EOir. American Cowslip. 



Oalyx 5-parted, i-eflexed. Corolla tube very short, limb rotate, S-parted, 

 witb the limb reflexed. Stamens 5, inserted into the throat of the corolla, 

 filaments short, anthers long, acute connivent at apes, hut shorter than 

 the style. — y Leaves all radical, oblong, scape erect, bearing an umbel of 

 nodding rose or white flowers. May, June. (Fig. 554.) 

 D. Mea'dia. Pride of Ohio. A striking and elegant plant, in prairies throughout the 

 "Western States. Scape l-2f. high. Petals white or pink. Stamens yellow, t 



3. LYSIMAOH'IA. Loose-strife. 



Calyx 5-parted. CoroUa tube very short, limb 5-parted, spreading. 

 Stamens 5, on the base of the coroUa, filaments often united. Pods 5-10- 

 valved. Seeds several or many. — it Leaves opposite or whorled, entire. 

 Flowers mostly yellow. June, July. 



I Erect Peduncles several-flowered, or flowers panioled. . . .a 



§ Erect. Pedicels 1-flowered, flowers racemed 8, 9 



§ Erect. Pedicels 1-flowered, flowers axillary.....! 



§ Prostrate, creeping. Pedicels (or umbels) axillary 10, 11 



= Leaves thick, rather obtuse, with the edges rolled back 4, 5 



= Leaves thin, acuminate, with the edges not rolled 6, 7 



1 Leaves mostly opposite, on petioles fringed with hairs 2, 3 



1 L. quadrifo'lia. Whorled L. Leaves whorled in 3's, 4's, and 5's, sessile. 

 2 L. cilia'ta. Fringe-lf. L. Leaves ovate, often cordate. Stems mostly branched. 

 8 L, hib'rida. Hyirid L. Lvs. lanoe-oblong, opposite or whorled. Stems branched. 



4 L. asperifo'lia. Bough-lf. L. Leaves oblong-Ianoeolate. Panicle bracted. S. 



5 L.longifo'Ua. Long-lf. L. Lvs. lance-linear. FIs. largo, scarcely pan. W". 



6 L. lanceola'ta. Lanae-lf. L. Lvs. whorled in 4's, lance. Upper fls. racemed. S. 



7 L. rra'seri. Fraser'e L. Leaves opposite, ovate, often cordate. Panicle large. S. 



8 L.'strio'ta. Strict L. Leaves nearly opposite, narrow-lance., with bulblets. 



9 L. Herbemon'ti. Herlemonffs L. Lvs. whorled, in 4'sor 5's, lance., acuminate. S. 



10 L. rad'ioans. Booting L. Branches rooting at the end. Leaves lanceolate. 



11 L. Nummula'ria. Moneywort. Stem simple. Leaves roundish, very obtuse 



4. TEIENTAXIS. Chick-wintergreen. 

 Calyx and corolla 7-parted. Stamens 7. Pod many-seeded. — if Stem 

 low, simple. Pedicels 1-flowered. 



T. Amerioa'na. American 0. A pretty little plant, common in woods northward. 

 Stem 3-5' high, bearing several lanceolate leaves in a sorb of whorl at top, and 

 from their midst, 1 or more white., starlike flowers. May, June. 



