118 NOTES AND EXHIBITS. 



further, the formation of the lateral spikes at the base of the 

 primary having, in some cases, been effected, Specimens ex- 

 hibited by Mr. Ewen Mackinnon at the Meeting of this Society, 

 in November, 1913, sliow several distinct basal spikes in addition 

 to the primary one, which has become narrowed and elongated. 

 A further series (Coll. W. M. Carne; Beecroft; November, 1914) 

 exhibits the final stage, viz., multiplication of spikes. The primary 

 spike is reduced in length, and is thickly studded with whorls of 

 abbreviated spikes, in extreme cases almost to the apex. — Rosa 

 Hort. var., showing frondiferous diaphysis. In an example com- 

 municated by Mr. T. Steel (Pennant Hills; January, 1915) the 

 axis of the shoot is prolonged through the flower, the calyx-lobes 

 have assumed the form and functions of ordinary pinnate leaves, 

 and the reproductive organs remain undeveloped. In a second 

 example (Coll. L. Mac Donald; Mosman; December, 1914) only 

 two of the calyx-lobes have shown frondescence, the other lobes 

 remaining normal. — Pelargo7iuim {Geraniurti) Hort. var. (Miss 

 Carne; Beecroft; March, 1915), showing lateral, foliar prolifica- 

 tion of the inflorescence. A tuft of leaves is noted intermixed 

 with sessile flower-buds at the base of the inflorescence, the whole 

 surrounded by a normal involucre. The unilateral inflorescence, 

 consisting of but two flowers, indicates arrested growth. — 

 Iso'pogon aneinonifolius R.Br., (A. A. Hamilton; Newnes Junc- 

 tion ; September, 1914); showing the xerophytic characters 

 of reduced, sclerophyllous leaves, and generally stunted growth. 

 Two examples were exhibited. The environment of these two 

 examples was widely dissimilar, one growing on an elevated, 

 barren ridge; and the other in a swamp. According to Schimper 

 ("Plant-Geography," pp. 2-8), the presence of humous acids in 

 the peaty soil of a bog creates a physiologically dry condition for 

 the swamp- vegetation. As a consequence, the plant living in 

 the swamp has been compelled to resort to the same devices for 

 avoiding excessive transpiration as its congener on the dry ridge, 

 hence the morphological similarity of the two examples. — Ca^/i^Hs 

 Muelleri Benth. cfe Hook, f., showing dimorphic foliage. The 

 juvenile leaves are still in situ, though the plant has reached the 

 fruiting stage. This species is described in the Fl. Austr. (vi., 



