556 NOTES AND EXHIBITS. 



Mr. Jensen exhibited a series of photographs and petrological 

 specimens, illustrating the geology of the Warrumbnngle Moun- 

 tains. Lantern slides will be shown at a future Meeting, when 

 the geology of the Nandewar Mountains is treated of. 



Mr. Fletcher showed germinating seeds and young seedlings up 

 to 4 inches, of a common leafless parasite, Cassytha pubescens R. Br., 

 one of the Dodder-Laurels [N.O. Laurine.e]. The portion of the 

 embryo which emerges from the seed is at first cylindrical, 

 shortly becoming club-shaped; meanwhile the rudiments of the 

 roots, of which there are usually three, appear as a median and 

 two lateral projections — sometimes only two are developed. The 

 roots and root-hairs of seedlings no older than those exhibited 

 attain considerable development; in this respect, as also in 

 the presence of chlorophyll in the young stems, differing markedly 

 from young Dodder plants [N. O. CoNVOLVULACEiE] (as described 

 in text-books, e.g., Kerner and Oliver's " Nat. Hist, of Plants," 

 i. 173), to which at an earl}^ stage they offer some resemblance. 

 A leafless condition characterises both types. 



