Hostname: page-component-77c89778f8-rkxrd Total loading time: 0 Render date: 2024-07-20T07:25:49.949Z Has data issue: false hasContentIssue false

VIII.—On the Histology of the Ephedreæ, with Special Reference to the Value of Histology for Systematic Purposes

Published online by Cambridge University Press:  06 July 2012

R. J. D. Graham
Affiliation:
Carnegie Research Scholar, Botanical Department, The University, St Andrews.

Extract

Although a few papers have been published a number of years ago on the genus Ephedra, the authors have treated the subject mainly from a systematic standpoint. Thus, while the characters of the floral organs have been carefully examined and described, the structure and character of the vegetative organs have only received passing reference. It is proposed in the following notes to undertake the study of the histology of the vegetative organs, and thereafter to ascertain how far this knowledge applies to the determination of species. The following notes deal with the histology of the primary stem.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1909

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Papers Referred to

(1)Haberlandt, G., Die Lichtsinnesorgane der Laubblätter, Leipzig, 1905.Google Scholar
(2)Graham, R. J. D., “On the Light-sense Organs in Ephedreæ,” Trans. Scots. Mic. Soc., March 1907.Google Scholar
(3)Stapf, O., “Die Gattung der Ephedreæ,” Denkschr. Akad. Wissensch. Wien, 1889, Bd. lvi.Google Scholar
(4)De Bary, A., Comparative Anatomy of the Phanerogams and Ferns, Oxford, 1884, p. 35.Google Scholar
(5)Strasburger, E., “Ueber den Bau und die Verrichtungen der Leitungsbahnen in den Pflanzen,” Hist. Beit., 1891, Heft iii., p. 140.Google Scholar
(6)Von Mohl, H., “Ueber den Bau der grossen getüpfelten Röhren von Ephedra,” Linnea, 1831, Bd. iv.; p. 593.Google Scholar
(7)Strasberger, E., Die Coniferen u. die Gnetaceen, Jena, 1872, p. 115.Google Scholar
(8)Dingler, H.Ueber das Scheitelwachsthum des Gymnospermen-Stammes,” Bot. Zeil., 1882, Bd. xl., p. 796.Google Scholar
(9)De Bary, A., i.c., p. 14.Google Scholar
(10)Bertrand, , “Anatomie des Gnétacées et des Conifères,” Ann. d. Se. Nat., 1874, Ser. v., Bot., tom. xx., p. 24.Google Scholar
(11)Fritsch, F. E., “The Use of Anatomical Characters for Systematic Purposes,” Neto. Phyt., 1903, vol. ii., p. 177.Google Scholar