Malvaceae varia

Pontificiae Academiae Scientiarvm Scripta Varia

Sesquiterpene lactone glycosides from the roots of Ferula varia.

Seven new sesquiterpene lactone glycosides (1-7) were isolated from the H2O-soluble fraction from the MeOH extract of the roots of Ferula varia. Their structures were elucidated by extensive spectroscopic analyses. The absolute configurations of compounds 1 and 2 were determined by modified Mosher's method.

Problemata Varia Anatomica: MS 1165 The University of Bologna

Eine Geschichte der Anatomie und Physiologie von Albrecht von Haller, by CARLo ZANETrI and URsuLA WIMMER-AESCHLIMANN (Berner Beitraige zur Geschichte der Medizin und der Naturwissenschaften, Band 1), Berne, Huber Verlag, 1968, pp. 157, S.Fr./DM.19. This paperback is the first of a new collection of historical reviews published under the general title of 'Berne reviews on the history of Medicine...

New Sulphated Flavonoids from Wissadula periplocifolia (L.) C. Presl (Malvaceae).

Wissadula periplocifolia (L.) C. Presl (Malvaceae) is commonly used in Brazil to treat bee stings and as an antiseptic. The antioxidant properties of its extracts have been previously demonstrated, thus justifying a phytochemical investigation for its bioactive phenolic constituents. This has yielded five new sulphated flavonoids: 8-O-sulphate isoscutellarein (yannin) (1a); 4'-O-methyl-7-O-sulp...

Pollen, tapetum and orbicule development in Modiolastrum malvifolium (Malvaceae).

BACKGROUND AND AIMS Although orbicular functions are still a matter of debate, they are considered by most authors to be exclusively formed by a secretory tapetum. However, the presence of orbicules on a peritapetal membrane associated with a plasmodial tapetum has been described for Abutilon pictum (Malvaceae) in a previous study. Thus, studies on other species of Malvaceae are necessary to co...