Showing papers on "Cestrum published in 1978"
TL;DR: Time-course tracer studies were performed on the metabolism of trans -cinnamic acid-[3- 14 C] and trans - p -coumaric acid in the body to establish a stationary phase for tracer discovery and establish an experimental procedure for direct determination of tracer concentrations.
22 citations
TL;DR: The binomial Cestrum poeppigii (Solanaceae) has been cited in a number of recent publications on the phytochemistry of the genus and there is a variation in the number of stamens from 4 to 6, the last number correlated with a 6-merous corolla.
Abstract: The binomial Cestrum poeppigii (Solanaceae) has been cited in a number of recent publications on the phytochemistry of the genus (Nagels & Parmentier 1973, 1974, 1976). This binomial has been applied to material grown in the Botanical Gardens of the University of Ghent and subsequently cultivated at the Municipal Gardens of Antwerp. The choice of the specific epithet is unfortunate as it has been applied to two different species. The binomial was first used by O. Sendtner (1846) for a species from Brazil collected by E. F. Pbppig (Poppig 2979) and a few years later applied to a different species by D. F. L. von Schlechtendal (1854) with E. F. Pbppig 69 from Chile as the type material. In his monograph of the genus Cestrum, Francey (193 5-6) relegates C. poeppigii Sendtn. to C. latifolium Lam. var. tenuiflorum (H.B.K.) O. E. Schulz and C. poeppigii Schlechtd. to C. parqui L'Her. A comparison of the cultivated material, whose origin can no longer be traced, with each of these species in turn, proved that it could not be determined as either of the taxa. It turns out that the material in question can be referred to C. euanthes Schlechtd. taken in the wide sense i.e. including C. sellowianum Sendtn. and C. intermedium Sendtn. as done by Scolnik in 1954. Francey, who recognized these three taxa as distinct species, mentioned the unequal stamens only in C. euanthes. In the abundantly flowering material made available to us by F. Parmentier we observed a variation in the number of stamens from 4 to 6, the last number correlated with a 6-merous corolla. Two of the normally five stamens are always shorter than the others. The species as here delimited is native of the southern states of Brazil, Paraguay, Uruguay and adjacent Argentina. The present authors feel obliged to point out the above nomenclatural change in the light of further biochemical work currently being carried out on this taxon.
2 citations