524 



CAMPANULACEiE. 



Order 102. — Oampanulace^, the Harebell Family. (Monopet. 

 Epigyn.) (Pig. 745.) Calyx superior, usually 5-lobed (figs. 746, 

 747 c), sometimes 3-8-lobed, persistent. Corolla gamopetalous, in- 

 serted into the top of the calyx, usually 5-lobed (fig. 276, p. 186), 

 sometimes 3-8-lobed, regular, mareescent (fig. 557 e, p. 308) ; aestiva- 

 tion valvate (figs. 746, 747 p). Stamens inserted into the calyx, 

 alternating with the coroUine lobes, and equal to them in number ; 

 anthers bilocular, free (fig. 747 e) ; pollen spherical. Ovary more or , 

 less completely inferior, composed of two or more carpels ; ovules indefi- 

 nite (fig. 748) ; style simple, covered with collecting hairs (fig. 747) ; 

 stigma naked, simple, or with as many lobes as there are ovarian 

 cells (figs. 318 s, p. 206 ; 440, p. 249 ; 747 s). Fruit capsular, crowned 



Mg. 748. 



Fig. 749. 



Figs. 751, 752, 760. 



with the withered calyx and corolla, dehiscing in a loculicidal manner 

 by lateral apertures (figs. 557 1 1, p. 308 ; 749), or by valves at the 



Figs. 745-752. Organs of Fructiflcation of Campanula EapunculuB, Eampion, to illus- 

 trate the natural order Campanulaceae. Fig. 745. Diagram of the flower, showing iive 

 divisions of the calyx, five divisions of the corolla alternating with them, five alternating 

 stamens, and five cells of the ovary. Fig. 746. Flower-bud. c. Calyx adherent to the 

 ovary, p. Corolla, with valvate aestivation. Fig. 747. Vertical section of the flower, 

 c. Calyx cohering with the ovary, o. p, Gamopetalous corolla, c. Stamens with bilocular 

 anthers, s, Lobed stigma at the apex of the style, which is covered with collecting hairs. 

 0, Ovary containing numerous ovules attached to a central placenta. Fig. 748. Horizon- 

 al section of the ovary. Fig. 749. Fruit crowned by the limb of the calyx, dehiscing by 

 openings at the base. Fig. 750. Seed in an entire state. Fig. 751. Seed out vertically, 

 p, Perisperm (albumen), e. Straight embryo in the axis of the albumen, with the radicle 

 pointing to the hilum. Fig. 762. Embryo detached, showing its form, the cotyledons 

 and radicle. 



