ORDEK 51. LOOSESTRIFES. 209 



b Flowers in panicles. Leaves lance-ovate 8, 4 



b Flowers in corymbs or little umbels. Leaves oval or ovate 5, 6 



1 S. opulifo'lia. Fine-bark. Leaves simple, 3-Iobed. Corymbs umbellate. N. 



2 S. sorbifo'lia. Sorb-leaved M. Leaves odd-pinnate. Flowers in panicles. 



3 S. tomento'sa. Hard-hack. Lvs. with u rusty wbite dense wool beneath. 



4 S. salicifo'lia. Willow-leaved. Lvs. nearly smooth. Shrub 8 or 4f. high. 

 5 S corymbo'sa. Corymb very large, terminal, flat-topped. Height l-2f. S. 



I S. hTpericefo'lia. St. Peter's Wreath. Little umbels many, lateral. Cultivated. 

 7 Leaves once-pinnate. Inflorescence terminal, on a long stalk.... 8, 9, 10 

 7 S. Arnn'cns. Goafs Beard,. Lvs. thrice-pinnate. Fls. in slender spikes. M 



S S. loba'ta. tauten of the Prairie. Flowers purple. Side leaflets 3-lobed. W. 



9 S. filipen'dula. Dropwort. Fls. white. Lfts. pinnatitid-serrate. Gardens. 



lu S rjlma'ria. Meaduw-gweet. Flowers white. Lfu. doubly-serrate. Gardens. 



ORDER L. MELASTOMACEJ3. Melastoines. 



Plants with square brandies, and opposite, simple, 3-7-veined leaves ; 

 flowers with adherent calyx tube, twisted petals, and definite stamens. 

 anthers opening by terminal pores. Fruit a capsule or berry. 



RIIEX'IA. Deer-grass. 



Perennial herbs, with showy flowers. Leaves 3-5-veined. Calyx tube 

 prolonged and narrowed above the ovary, 4-cleft. Petals 4. Anthers b, 

 1-celled. Style declined. Capsule 4-celled, oo - seeded. 



* Anthers curved, linear, appendaged at base. Flowers purple.... (a) 



* Anthers straight, oblong, not appendaged. Maryland to Fla. . . .Nos. 5-7. 



a Stem square, winged. Lvs. ovate to lanceolate, bristly-serrate Nos. 1, *. 



a Stem terete or teretish. Leave? lanceolate to linear . . .No?. 3, 4. 

 1 E. Virgin'ica. Meadow Beauty. Plant 12-18' high, with scattered hairs, sessile leaves 



and a large cyme of bright purple flowers. Wet grounds. 

 i> B. stricta. Plant 3-4f. high, smooth, calyx smooth, tube very short. S. 



3 R. Maria'na. Hairy. Leaves on short petioles, bristly-serrate. l-2f. 



4 E. glabel'la. Glabrous. Leaves sessile. Calyx hispid. Damp woods. S. 

 5 R. cilio'sa. Leaves broad-ova;e, bristly ciliate. Petals purple. South. 



B R. serrula'ta. Leaves small, round-oval, serrulate-ciliate. Flowers purple. S. 

 1 R. hi'tea. Leaves oblong-linear. Flowers panicled, yellow. Woods. S. 



ORDER LI. LYTHRACE^E. Loosestrifes. 



Plants with entire, exstipulate, mostly opposite leaves; 



calyx tubular, bearing the 4-7 petals and 4-oo stamens on its throat. 



ovary and style compound. Fruit a capsule, or fleshy ; many-seeded 



