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Supplementary Material Added To Volume 4

No. 38. Part X. See also vol. ii, p. 202.

Macadamia ternifolia, F.v.M. THE QUEENSLAND NUT. (Family PROTEACEÆ.)

Leaves. — See vol. i, p. 217. A well-known Australian plant, M. ternifolia, F. Muell., the " Queensland Nut, " must, according to my analysis at Kew, he considered among the most strongly cyanogenetic [ i.e., producing hydrocyanic (prussic) acid owing to fermentative changes. — J.H.M. ] plants; in the fresh leaf the hydrocyanic acid content was more than 0.1 per cent. Our chemical knowledge of this order (Proteaceæ) is still very slight. (Phytochemical investigations at Kew by the late Dr M. Greshoff, Kew Bulletin, No. 10, 1909, p. 413.

PHOTOGRAPHIC ILLUSTRATION.

"Queensland Nut" in the Botanic Gardens, Sydney. — (Government Printer, photo.)



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