334 Szabo .— The Development of the Flower of the Dipsacaceae. 
Literature cited. 
]. Buchenau, F.: Uber die Bliithenentwickelung einiger Dipsacaceen und Compositen. Abhand- 
lungen der Schenkenberg. Gesell., i. 106, 1857. 
2 . Eichler : Bliithendiagramme, 280-5, 1875. 
3 . Fodor, F. : Adatok a Cephalaria fajok histologiajanak ismeretehez (Contributions to the know¬ 
ledge of the histology of the Cephalariae). Botanikai Kozlemenyek, 4. fiizet, 1910. 
4 . Gjurasin, S. : Povijest razvoja inflorescencija kod Dipsakaceja. Prestamano iz 158. knjige 
‘ Rada ’ Jugoslavenske akademije znanosti umjetnosti, u Zagrebu, 1904. 
5 . Goebel, K.: Organographie der Pflanzen, pp. 743-5, 1898-1900. 
6. Payer : Traite de l’organogenie de la fleur, p. 629, 1857, Atlas. Tab. 131. 
7 . Szabo, Z. : A Knautia genus monographiaja (Monograph of the Genus Knautia). Math.- 
Term. tud. Kozlem, xxxi. 1, 1911. 
8. van Tieghem, P.: Remarques sur les Dipsacacees. Ann. des Sci. Nat., Bot., tome x, p. 148, 
1909. 
9 . Vesque: Caracteres des principales families gamopetales. Ibid., tome i, 1900. 
EXPLANATION OF FIGURES IN PLATES VII AND VIII. 
Illustrating Professor Szabo’s paper on the Development of the Flower of the Dipsacaceae. 
PLATE VII. 
Figs. 1-8. The early stages of development of the flower-of Cephalaria elata. a, stamens; 
b, bract; c, corolla ; g> the protuberance of the carpel; i, involucel; k, calyx. 
Figs. 9- 1 3. Further stages of development of the flower. a, anthers; b, bract; c, corolla; 
c', median-anterior lobe of the corolla ; i, involucel ; k, calyx; 0, ovule ; s, stigma; st, style. 
Figs. 14-19. The development of the stigma and style. 1-3, the horseshoe-shaped protuber¬ 
ance of the carpel; a, stamens ; c, corolla ; i, involucel; k , calyx ; p , pollen. 
PLATE VIII. 
Fig. 20. The fully developed stigma. 
Figs. 21-29. The development of the bud and flower of Cephalaria data. 21. Left side view. 
22. Median-posterior view. 23-4. Side view with the bract. 25. Emergence of the two stamens. 
26. Emergence of two other stamens; the involucel has been removed. 27. The male (staminal) 
stage without the ovary. 28. At the time of elongation of the style ; half of the corolla has been 
removed. 29. The later (female) stage, i, involucel; k, calyx; 0, ovary; p, bract. 
