ABSTRACTS. 



561 



The bulbs exported were valued at £493 in 1879, in 1889 £2,502, and in 

 1899 at £25,956. The great rise during the last four years is owing to the 

 enormous demand for L. loncjiflorum, and in a IcSvS degree for L. auratum 

 and L. speciomm. — G. S. S. 



Lobelias (Tree) of Tropical Africa. By W. ]]. Hemsley 



(Gard. Chron. No. 756, p. 417, fig. 156; 29/6/ 1901).— A short account 

 of these remarkable plants is given. Their principal habitat is Abyssinia,, 

 where they grow at an elevation varying from 8,000 to 13,000 feet. 

 They are also found at Kilimanjaro, and in Nyassaland there are several 

 of these arboreal species, which differ most essentially in general appear- 

 ance from those generally known in this country. They much resemble 

 a small Palm, and appear to grow to a height of about 9 or 10 feet 

 (not including the flower-spike, which is several feet in length). These 

 trees are quite a feature in the landscape, which from the figure appears 

 to be devoid of other vegetation except quite low-growing plants. Another- 

 group of species of similar habit is said to inhabit the mountains of 

 troi^ical America.— G. S. S. 



Lophotocarpus. By Jared G. Smith {Bep. Miss. Bot. Gard. vol. xi. 

 p. 145 ; 1900; plates 53-7). — Eevision of the species of the United States 

 in this genus allied to Sagittaria, including L. fluitans, ccdycinus, 

 depauperatus, and spongiosus, and two new species, here described — * 

 L. calif or iiicus, collected in 1891, at Coyote Creek, Los Angeles, California, 

 by S. B. and W. F. Parish; and L. spatulatus, collected by Alvah A. 

 Eaton, on sandy tidal beaches of the Merrimac— G. S. B. 



Loquat, The (Eriohotrya japonica) {Jour. Soc. Nat. Hort. Fr.. 

 p. 609). — Notes, with descriptions, of twelve varieties grown in Algiers. . 

 The selection of the twelve best sorts was made at an exhibition held in 

 May last at Mustapha, being chosen for their size, flavour, and suitability 

 for transport. Tiie grafts of these have since been distributed amongst 

 the leading growers, the practice of grafting having superseded the 

 custom of relying on seedling plants. The importations of the fruit in 

 Paris seem to have been much appreciated. — G. P. 



Louse, Apple Plant. John B. Smith {New Jersey Agr. Exp. St. 

 Bull. 143, March 1900, pp. 1-23, figs. 1- 33 and two plates). 



This pest is the Aphis fuali, Koch, so injurious to the Apple in this 

 country. It has no alternate food-plant, but pas ses the winter in the egg 

 state, and shoots of the Apple are often covered with them. 



The remedies given are : — 



1. Kerosene (Paraffin) emulsion, one part ; water, twelve parts. 



2. Fish-oil soap, one pound in six gallons of water. 



3. Tobacco in decoction equal to an extract from one pound of 



tobacco in two gallons of water. 



" Any of these will answer, and all of them will fail to eradicate, 

 partly because of the difficulty of hitting all the examples when the tree 

 is in full foliage." Trees known to be infested with this pest should be 

 closely pruned, and the prunings burnt. — B. N. 



