32 Angewandte Botanik. — Personalnachrichten. 
though it does possess some power, and was formerly considered 
as an emetic of no small importance, but only the roots were em- 
ployed. The root is of a light brown color, of a bitter, not disagreable 
taste; it contains a whitisli substance the so-called Gillenin, further- 
more two glucosides Gillein, and Gilleenin, discovered by Curry. 
The seedling of Gillenia has a long primary root, and hypoco- 
tyl, epigeic cotyledons, and the plumule develops a small leafy 
shoot during the first season. This shoot, however, dies down at 
the beginning of winter, but becomes replaced by a bud, which 
develops in the axil of one of the cotyledons, and I did not find 
more than one bud developed. 
The hypocotyl, and primary root persist for several years, and 
the mature rhizome is creeping, but the internodes are very short, 
and lack scale-like leaves; many secondary roots are to be observed, 
and they are quite thick, somewhat knotty here und there. Charac- 
teristic of the root-structure is the peculiar thickening of the inner¬ 
most stratum of cortex, just outside endodermis. The increase in 
thickness results in the throwing off of the peripheral tissues from 
epidermis to endodermis, which become replaced by several strata of 
pericambial cork, and a very broad secondary cortex with much 
starch. A corresponding increase takes, also, place within the Stele, 
thus representing a cylinder of continuous leptome, and hadrome. The 
stem possesses an endodermis, and a stereomatic pericyele sur- 
rounding a circular band of collateral mestome-strands. The endo- 
xyle is very distinct in this species, and this tissue was formerly 
mistaken for leptome. Raimann called it „intraxylar cambiform”; 
Strasburger „primary vasal-parenchyma”; Prunet „parenchyme 
intraligneux”, while Briquet proposed the term „endoxyle”. 
The leaf-blade is dorsiventral, but shows no features of parti- 
cular interest. Theo Holm. 
Scala, A. C., La tecnica de la doble coloraisön diferen- 
cial en histologfa vegeta 1. (ReWsta del Museo de La Plata. 
T. XV. p. 221-225. 1908.) 
L’auteur conseille une formule de carmin borique et un procede 
de montage dans une solution aqueuse glycerinee de gomme ara- 
bique qui evite la dehydratation prealable exigeefpar le montage au 
bäume de Canada. A. Gallardo (Buenos Aires). 
Personalnaehriehten. 
Gestorben: Dr. F. Schmidt, Botaniker und Geologe, in St. 
Petersburg, 77 Jahre alt, am 8/21 Nov. 1908. 
Dr. Osw. Richter habilitierte sich an der deutschen Techni¬ 
schen Hochschule zu Prag für Botanik. — Dr. I. Pruszynski 
a. d. Univ. Lemberg für Pharmakologie. 
Dr. G. Bredemann, bisher Assistent am Bot. Inst, zu Marburg 
(Hessen) ist die Stelle eines Abteilungsvorstehers auf der Landw. 
Versuchsstation daselbst übertragen. 
Ausgegeben: 5 .Tanuari 1909. 
Verlag von Gustav Fischer in Jena. 
Buchdruckerei A. W. Sijthoff in Leiden. 
