203 



THE FLORA. 



b Flowers in panicles. Leaves lance-ovate 3, 4 



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



opulifolia. Kine-harh. Leaves simple, 3-lobed. Corymbs umbellate. N. 

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



3 S. tomento^sa. Hard-hack. Lvs. with u rusty white dense wool beneath. 



4 S. salicifo'lia. Willow -leaved. Lvs. nearly smooth. Shrub 3 or 4f. high, 

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

 hypericefo'lia. St. Petefs Wreath. Little umbels many, lateral. Cultivated. 

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



7 S. Amn''cus. GoaVs Beard. Lvs. thrice-pinnate. Fls. in slender spikes. M, 



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



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



10 S. Ulma^ria. Meadoio-sweet. Flowers white. Lfts. doubly-serrate. Gardens. 



1 S. 



2 S. 



5 S. 



6 S. 



Order LII. OXAGRA'CE^. Evening Primroses. 



Eerhs with alternate or opposite lemes ; and with the parts of the 

 flowers generally in 4's, sometimes in 3's, 2's, or I's ; with the 

 scpah united below into a tube, valvate in the bud ; the 

 'petaU and stamens inserted into the throat of the caljx; 

 ovary coherent with the tube of the calyx ; becoming in the 

 fruit a 2-4-celled capsule or berry with many seeds. 



3 



Fig. ibS. Flower of (Enothera fruticosa. 9. Plan of the flower. Fi ff. i60. Section of the 

 4-celIecl capsule of (E. biennis. 1. Hippuris vulgaris. 2. Its flower, with 1 stamen, 1 ovary, 

 2 stj'le. 3. Vertical section of its 1-seeded fruit. 4. Circsea Lutetiana. 5. The flower en- 

 larced. 6. Plan of the flower. 7. Vertical section of the 2-celled and 2-seeded fruit. 



Analysis of the Genera. 



* Flowers 4 or 5-parted (that is, with 4 or 5 petak., sepals, &c.) 2 



* Flowers 3-parted, i. e., with 3 sepals, 3 stamens, &c. (no petals). . . .g 



