172 E. A. BASTOW. 



Then follows a reference to Hooker's " Handbook of the New- 

 Zealand Flora," at page 652, where much further information con- 

 cerning the plant can be obtained. 



Myriodesma quercifolia can be examined exactly in the same 

 manner, or easier still by placing the point of a lancet or sharp 

 knife against one of the prominences, thus lifting the cuticle as 

 shown at Fig. 17. It can then be seen as an opaque object, of 

 course with the aid of a good bull's eye condenser. The gelatinous 

 pellicle, Leathesia, must be cut with the scissors as before directed, 

 and immediately the surface of the water on the slip will be tilled 

 with spores and filaments as shown at Fig. 48. It will be noticed 

 by the key that this plant belongs to the tribe Chordariese, whilst 

 the two previously examined belong to the Fucese. 



It is a great help to have the series of genera before one, for a 

 tremendous amount of time is consumed in turning over leaf after 

 leaf of many volumes in the sometimes vain hope of finding the 

 plant illustrated, especially is this the case in regard to Harvey's 

 Phycologia Australis, a truly magnificent work, but not paged. 



It is necessary to inform the reader that the classification is 

 according to Dr. Sonders catalogue, contained as a supplement 

 in Vol. xi. of Baron von Mueller's FragmentcE Phytographice 

 Australia. The numbers of the genera are the same in the key 

 as they are in the catalogue, so that reference can be readily made. 

 Some of the genera have been divided in recent years, but under 

 the old names most of them will be found in the catalogue. The 

 illustrations are made in every case from specimens in the National 

 Herbarium, Melbourne; some were mere fragments, yet they were 

 sufficient for dissection and section cutting required for the figures; 

 and, I must here express my thanks to the authorities at the 

 Herbarium for specimens not otherwise obtainable. 



The following books have been used in the compilation of the 

 key : — Harvey's — Nereis Australis, Parts 1, 2, with plates 1 - 50; 

 Phycologia Britannica; Phycologia Australis; Nereis Borealis 

 Americanus ; Hooker's — Antarctic, New Zealand and Tasmanian 



