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GC chromatograms of the alkaloids from Chilean Rhodophiala species. Numbers refer to Table 2. (I) Bulbs of R. montana; (J) Aerial parts of R. montana; (K) Bulbs of R. pratensis (red flowers, without leaves, growing on sand dunes); (L) Aerial parts of R. pratensis (red flowers, without leaves, growing on sand dunes). IS: internal standard; U: unknown.
