Two new diterpenes with a rosane skeleton from velloziaceae.

Two new diterpenes with a rosane skeleton from velloziaceae. Six diterpenes from Vellozia compacta Diterpenes with pimarane and cleistanthane skeletons from Vellozia piresiana Compactone, a new diterpenoid from Vellozia compacta Three ent-kaurene diterpenes from Vellozia caput-ardeae Vellozone, a tetracyclic triterpene from Vellozia stipitata New diterpenoids from stems and roots of Caesalpinia crista Two kaurenes from Vellozia caput-ardeae Ten New Labdane-Type Diterpenes from the Fruit of Vitex rotundifolia. Diterpenes from the Fruits of <i>Vitex rotundifolia</i>