Cemara sumatra (Taxus sumatrana (Miquel) de Laub.) is an important source of taxane, a promising drug for cancer. Unfortunately producing planting stocks of cemara sumatra is problematic due to scarcity of the seeds and the seed is difficult to germinate. Cutting is potential alternative way to produce cemara sumatra planting stocks. The objective of this research was to study the effect of cutting media on root formation of cemara sumatra. Cutting materials were collected from natural mature

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... mara sumatra trees growing in Mt. Kerinci-Jambi. Media used were combination of cocodust : ricehusk (1:1 v/v), cocodust : ricehusk : soil (1:1:1 v/v), and cocodust : ricehusk (2:1 v/v). Root development was observed by microtechnique proccedure. Result showed that planting media gave significant effect on rooting ability. Among the three media, combination of cocodust and rice husk at the ratio 2:1 gave the best result in rooting ability (66.7%). From the microtechnique result, it showed that roots were first developed from the mesristematic cambium cells.