76o JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY, 



NOTES AND ABSTRACTS. 



Agathis vitiensis (Bot. Mag. tab. 8512).— Family Conifer ae, 

 tribe Araiicarieae. Fiji Islands. Tree, resiniferous, 80-100 feet in 

 height. Leaves subopposite, 3J-5 inches long. Catkins ij inches 

 long. Cones globose, 3j inches long, 3J inches wide. Seeds solitary 

 with membranous, unequal-sided wing. — G. H. 



Alder Blight Aphis, The Life History of the. By Theo Per- 

 gande (U.S.A. Dep. Agr., Bur. Enlom., Tech. Ser. No. 24 ; April 

 1912 ; 12 figs.). — In perhaps no other group of insects is a thorough 

 knowledge of the life histories so necessary to correct conceptions of 

 the species as in the family Aphididae. It is a well-known fact that 

 many aphides have a secondary or alternate food plant. A notable 

 example of this is the hop aphis (Phorodon humuli Schrank), which 

 lays its eggs and passes the winter on the plum, and which is best 

 combated by spraying the cultivated and destroying the wild plums 

 in the vicinity at the seasons of the year when the aphis is present 

 on this food plant rather than by measures directed against the insect 

 during the summer when it occurs on the hop-vines. Investigations 

 by the writer of the present species, which has hitherto been confused 

 under various names, were begun in 1878, and have been continued 

 up to 191 1. They have resulted in straightening out the synonymy 

 of the species and furnished conclusive proof that Pemphigus 

 acerifolii of Riley described from the maple, and P. (Eriosoma) 

 tessellatus of Fitch, described from the alder, are merely forms or 

 series of one and the same species which should now be known as 

 Prociphilus tessellatus Fitch. — V. G. J. 



Alocasia Micholitziana (Bot. Mag. tab. 8522).— Family Aroideae; 

 tribe Colocasiae. Philippines. Herb. Stock i| foot high. Leaves 

 sagittate, dark green above, paler ribs, anterior lobes 4-10 inches 

 long ; peduncle 4-6 inches long, green but banded with brownish- 

 purple markings. Spathe erect, subglobose ; lamina 3^-4 inches 

 long, pale yellowish. Spadix, appendix pale yellowish. Ovary globose. 



G. H. 



Apple * Cornell* (U.S.A. Dep. Agr., Year Book 1911, p. 423; 

 col. plate). — A variety raised some 100 years ago and now recom- 

 mended for early market use. — E. A. Bd. 



Apple 'Eastman' (U.S.A. Dep. Agr., Year Book 1912, p. 262; 

 col. plate). — Raised from ' Fameuse ' in 1874, and much hardier than 

 this variety and extremely prolific. — E. A. Bd. 



