The Geography of Phytochemical Races

6.9 Macaronesia 283
Fig. 6.16 Compounds 566–573, phenolic compounds from Todaroa aurea
Tenerife and La Palma, revealed the existence of luteolin and an array of simple
phenolic derivatives as well as three known phytosterols, ß-amyrin, sitosterol, and
stigmasterol. The phenols identifi ed comprised a set of phenylpropanoids: myristicin
[566] (see Fig. 6.16 for structures 566–573), methyleugenol [567], todadiol [568],
todatriol [569], crocatone [570], elemicin [571], apiole [572], and the coumarin
scopoletin [573]. The occurrence of these compounds is recorded in Table 6.5. The
differences between the two profi les were taken by González and his co-workers
Table 6.5 Distribution of simple phenols and phytosterols in Todaroa aurea (from González
et al., 1988)
Compound Island
Tenerife La Palma
Myristicin + +
Methyleugenol + −
Todadiol + +
Todatriol + −
β-Amyrin + +
Sitosterol + +
Stigmasterol + +
Luteolin + +
Crocatone + −
Scopoletin + +
Elemicin − +
Apiole − +