',Hi2 



Lv. onagracea:. 



Epilobium. 



possess no remarkable properties. Many genera are ornamental, and one, the well known Fuchsia, is so 

 to a high (legiee. 



To this order is appended the suborder Halorngece, consisting of aouatic herbs of a low grade, tha 

 flowers being imperfect or reduced to solitary parts or organs. 



FIG. 45.— 1. Flower of Oenothera fi-uticosa. 2. Plan of the flower. 3. Section of the 4-celled capsule 

 of (E. biennis. 5. Hippuris vulgaris ; 6, its flower, with 1 stamen, 1 ovary, 1 style. 4. Vertical section 

 of its iseeded fruit. 7. Circaea Lutetiana. 8. The flower enlarged. 9. Plan of the flower. 10. Vertical 

 section of the 2-celled and 2-seeded fruit. 



Conspectus of the Genera. 



rPet. scarcely < Seeds comoae. Epilobium. I 



J clawed ; i Seeds naked. (Enotkera. 2 



] ( Claws unarmed. Gaura. S 



J Herbs. I Pet. clawed; ( Claws with 2 teeth. ClarJna. 3 



<i Sta. S; ; Beautiful green-house shrubs. . . Fuchsia. 4 



^Fls.perf. ^Stamens 4; styles united into 1 tudwigia. 6 



|'by4s; ^Flowers monoecious ; aquatic; leaves multifid. . . Myriophyllum. 9 



J by 3s; flowers apetalous ; ariuatic ; leaves pectinate. . . . Proserpinaca. 8 



I by 2s; flowers complete and regular; leaves dentate. . . . Circcea. 7 



Parts of fl.arrang'd I by Is; flowers aiietalous; aquatic; leaves verticillate. . . . Hippuris. 10 



Tribe 1. ONAGREa3. 



Flowers perfect, the parts arranged in 4s (rarely 3s); pollen connected by threads. 

 1. EPILOBIUM. 



Gr. CTTi, upon, \ofioit, a pod, lov, a violet ; j. e. a violet growing upon a pod. 



Calyx tube not prolouged beyond the ovary, limb deeply 4-cleft, 4- 

 parted and deciduous ; petals 4 ; stamens 8, anthers fixed near the 

 middle ; stigma often with 4 spreading lobes ; ovary and capsule 

 linear, 4-cornered, 4-cclled, 4-valved ; seeds 00, comose, vrith a tuft 

 of long hairs. — "4- 



1. E. ANGUSTiFOLiuM. (E. spicatum. Lam.) Willoiv Herb. Rose-bay. 

 St. simple, erect ; lis. scattered, lanceolate, subentire, with a marginal 



vein ; rac. long, terminal, spicate ; pet. unguiculate ; sta. and stij. declined ; stig. 

 with 4 linear, revolute lobes. — In newly cleared land.s, low waste groimds, 

 Penn. to Arctic Am. Stem 4 — 6f high, often branched above. Leaves sessile, 

 smooth, 2 — 5' long, j as wide, acuminate, with pellucid veins. Flowers nume- 

 rous and showy, all the parts colored, petals deep lilac-purple, ovary and sepals 

 (5 — 6" long) pale glaucou.s-purple. Jl. Aug. 



p. canescen.'^. — Flowers of a pure Avhite in all their parts ; ovaries silvery- 

 canescent. — Danville, Vt. Miss M. L. Toide ! 



2. E. coLORATUM. Muhl. Colored Epilobum. 



St. subterete, puberulent, erect, very branching; Ivs. mostly opposite, lan- 

 ceolate, dent-serrulate, acute, subpetiolate, .smooth, often with reddish veins ; 

 pet. small, 2-clefl at apex; cal. campanulate ; sty. included; s</^. clavate ; ovules 

 in a single row. — Ditches and wet, shady grounds, British Am. to Ga. W. to 

 Oregon. Stem 1 — 3f high, becoming very much branched. Leaves 2 — 4' long, 

 \ as wide, with minute, white dots, upper ones alternate and sessile, lower on 

 short petioles. Flowers numerous, axillary. Pedicels 1 — 2" in length, ovaries 

 4 — G", capsules 20", very slender. Petals rose-color, twice longer than the 

 sepals. Jl. — Sept. — Scarcely distinct from the next. 

 ^ 3. E. PALUSTRE. Marsh Epilobium. 



S/.. terete, branching, .somewhat hirsute; Ivs. sessile, lanceolate, subden- 



