448 Agricultur, etc. — Biographie. — Personalnachrichten. 
negative Anomalien des Wachstums an und zwar sowohl durch 
äussere Einflüsse als durch Bastardierung bewirkte. Häufigeres spon¬ 
tanes Variieren oder Mutieren einer Form lässt nach ihm auf wahr¬ 
scheinliche Entstehung der Form durch eine Bastardierung schliessen. 
_ Fruwirth. 
Rosevinge, L. Kolderup, Emil Rostrup. En Levnedsskildring 
[A Biography]. (Botan. Tids., vol. XXVIII, p. 185—198, iwith por- 
trait, 1907.) 
The well-known Danish mycologist E. Rostrup was born 1831 and 
died 1907 (Jan. 16 th ). He has worked in a great part of the field of 
botany. To be mentioned is his extensive knowledge of the Danish 
flora (he is author of a little studenr’s flora of which the 10 th ed. 
has appeared). His mycological works are to some extent connected 
with economic botany. His main work is a large handbook of plant- 
pathology published in Danish r 1902 (a translation in German is to 
be published). The biography teils us in an attractive manner of 
his life and his works; it is accompanied by an excellent portrait. 
C. H. Ostenfeld. 
Warming, E., Johannes Schönberg Baagöe. (Botan. Tids., 
XXVII, p. LIV-LVII, with portrait, 1906.) 
The late Mr. J. S. Baag-öe was known as an authority in the 
indentification of Potamogeton- species. He was an amateur naturalist 
of a charming eagerness. The obituary notice by E. Warming is 
written with heart-felt sympathy. C. H. Ostenfeld. 
Personalnaehriehten. 
TRANSVAAL BIOLOGICAL SOCIETY. 
The first regulär meeting of the Transvaal Biological Societ}^ 
took place on the 17 th January, 1908, at 4.30 pm. in the Library of 
the Transvaal Museum, Dr. Theiler, C. M. G. in the chair. 
The general business of the meeting having been accomplished, 
the following papers of botanical interest were read. 
Mr. Burtt-Davy. „Some additions to the Transvaal Flora.” 
a. The following were reported and commented on: Native Spe¬ 
cies: Portulacaria afra Jacq; Kiggelaria Dregeana Turez. 
b. Aliens: Chrysanthemum leucanthemum L. Centaurea Meli- 
tensis L. 
Centaurea Cyanus L.; Silene Callica L. Cnicus benedictus L.; 
Silybum Marianum Gaertn. 
Cryptostemma Calendulaceum R. Br.; Melilotus alba Lam.; Senecio 
mikanioides Otto (A garden escape), Tanacetum vulgare L. (A garden 
escape); Solanum aculeatissimum Jacq. and Jatropha curcas L. 
„On the Application of Mendel’s Law of Heredity in the breed- 
ing of Maize”; among other data obtained blackness and whiteness, 
yellowness and whiteness, blackness and vellowness, flintness and 
sugariness, dentness and sugariness were found to be Mendelian 
characters and mutually dominent and recessive. 
Ausgegeben: 28 A.pril 1908. 
Verlag von Gustav Fischer in Jena. 
Buchdruckerei A. W. Sijthoff in Leiden. 
