Excerpt from Proceedings of the Cambridge Philosophical Society, Vol. 12: October 27, 1902 May 16, 1904
Ten species of the Australian genus Macrozamia are natives of New South Wales, and one of these, M. heteromera, described in 1884 by Moore, is of interest as possessing, both in its ordinary form and in its two varieties glauca and tenuifolia, a type of frond unusual among Cycads. The pinnae are very narrow, reminding us in this respect of Encephalartos Ghellinkii, and most of them are forked in various ways (Fig. 4). It occurred to Mr Seward, who has referred to and figured this peculiarity of vegetative structure in his Wealden Flora, that the anatomy might perhaps be expected to shew some features differing from that of the rest of the genus. He was able to obtain a specimen through the kindness of Mr Maiden, Director of the Sydney Botanic Gardens, who informs us that "as a rule the plant grows in a stiff black clay amongst large stones (basalt); occasionally in sand-ridges (sand overlying clay)." The specimen, which on its arrival in England had been placed in methylated spirit, was handed to me for examination.
The diameter of the stem was about 125 cms. in its thickest part. The upper half was covered with leaf-bases, but lower down these had disappeared, and the position of the old leaves was only marked by tangentially elongated ridges.
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