NOTES AND EXHIBITS. 627 



Mr. A. A. Hamilton exliibited specimens from the National 

 Herbarium, with notes thereon. — Plaiiiago lanceolata Linn., 

 (Hornsby; W. F. Blakely; October, 1914) showing axillary floral 

 fission. The llower-spike is bifurcated at the apex, each of the 

 segments attaining a length of f inch. The generally healthy 

 and perfect condition of the flowers, on both the normal and 

 bifurcated portions of the spike, point to over-luxuriant, rather 

 than arrested growth. In an article on " Fasciation, its Mean- 

 ing and Origin" (The New Phytologist, iv., p. 55, 1905), W. C. 

 Worsdell (pp.72, 73) refers to this kind of dichotomy as the 

 simplest form of fasciation, and regards it as a reversion to an 

 ancient branching type, A second example of this species from 

 the Hawkesbury College (C. T. Musson), shows lateral prolification 

 of the inflorescence; the flower-spike exhibits arrested growth, 

 and a series of miniature spikelets, reduced to a few, or, in some 

 instances, a single flower, arise on contorted stems from the axils 

 of abortive flowers, these again repeating the process. — Primida 

 (Polyanthus) Hort., Pennant Hills (T. Steel; August, 1915), 

 showing phyllody of bracts and calyces, and petaloid irregu- 

 larities. The involucral umbellate bracts are foliaceous, and the 

 floral calyces have developed phyllody ; the corolla-lobes are 

 irregular in size and number (4 to 8; normally 5); the corolla- 

 tube is ruptured, and one of the anthers (which are attached to 

 the tube by a dilated membrane) has been carried up on the 

 ruptured edge, and appears as though seated on a diminutive 

 corolla-lobe. — Phytolacca sp., Mt. Wilson (Dr. J. B. Cleland; 

 June, 1915), showing foliar prolification. The almost normal 

 condition of the lower stem-leaves, taken in conjunction with 

 the attenuated foliar prolification of the upper branchlets, points 

 to suddenly accelerated growth followed by malnutrition. — A 

 series of specimens from a plant-association collected within a 

 radius of a few hundred yards, on the Woronora River at Heath- 

 cote, representative of the flora of the lower slopes of the 

 Blue Mountains: — Bosskea rhombifolia Sieb., C 07iospermuin 

 tenuifolium R.Br., GreviUea asplenifolia R.Br., Pomaderris 

 ledifolia A. Cunn., Pseudanthus pimeleoides Sieb., Lycopo- 

 dium densum Labill., Phebalium sqiiamulosum Vent., P. dios- 



