546 JOURNAL OF THE KOYAL HORTICULTURAL SOCIETY. 



peat deposit. Wave action caused by the wind and the shoreward push 

 of the ice prevents the bog flora from establishing itself in certain places 

 where the water is shallow. — G. F. S.-E. 



Larix OCCidentalis. By W. B. Hemsley (Bot. Mag. tab. 8253).— Nat. 



ord. Coniferae; tribe, Abietineae. Western N. America. A tree, 250 feet 

 in height, 6-8 feet thick ; leaves 2-2^ inches long ; male flowers in 

 subsessile, subglobose clusters ; ripe cones oblong, up to 1\ inch long, 

 brown, bracts (carpels ?) tailed. — G. H. 



Laurelia serrata. By 0. Stapf (Bot. Mag. tab. 8279).— Nat. ord. 



Monimiaceae ; tribe Laurelieae. Chile. Tree, polygamo-monoecious, 

 70 feet high ; leaves opposite, oblong-lanceolate, serrate, 2-5 inches 

 long ; inflorescence, axillary ; flower, perianth segments 8, 1^ line 

 long, | inch across, greenish -yellow. — G. H. 



Lavender Culture in France. By M. D. Bois (Jour. Soc. Nat. 

 Hort. Fr.j March 1909, p. 196). — A review of a pamphlet on lavender 

 growing and distilling, carefully compiled by Mr. Lamothe in order to 

 encourage the plantation of lavender in certain parts of Southern France 

 which seem particularly adapted to its culture. — M. L. H. 



Legislation and Insect Pests. By 0. W. Wood worth (Jour. 

 Econ. Entom. ii. (1909), 5, p. 359). — Many species of scale insects have 

 established themselves in California in spite of a stringent horticultural 

 quarantine and the exercise of great vigilance. on the part of the offisers. 

 The author suggests that such laws are probably of little use. — F. J. C. 



Lettuce. Development of New Varieties for Culture under 

 Glass. By B. T. Galloway (U.S.A. Dept. Agr. Year Book, 1907, pp. 139- 

 142 ; 1 plate). — An account of crossing at the Bureau of Plant Industry of 

 different types with a view to supplying the demands for a variety which 

 is resistant to sun burn and fungoid diseases, and which also meets with 

 approval in the market. — E. A. Bd. 



Leucojum vernum Vagneri. By S. Arnott (Garden, March 13, 

 1909, p. 125). — This snowflake, sometimes found under the name of L. 

 vernum carpaticum, is distinguished from the other spring snowflakes by 

 its small stature, earliness, and the frequency with which it has two flowers 

 on a stem. The writer considers it one of the finest of all the snowflakes. 



H. B. D. 



Lilacs for Succession of Bloom (Jour. Soc. Nat. Hort. Fr., 

 May 1909, p. 330).— In the "Vie a la Campagne," No. 60, March 15, 

 1909, M. Abel Chatenay gives a list of fourteen fine lilacs the possession 

 of which will insure a continuous succession of bloom during the longest 

 possible period. These are ' De Marly,' Alba grandiflora, ' Virginal,' 

 ' Marie Legraye,' Macrostachya, ' Lucie Baltet,' ' L. de Trianon,' 

 1 Souvenir de L. Spath,' ' Madame Lemoine,' ' Madame Casimir Perier,' 

 'ComtesseH. de Choiseul,' 'Michel Buchner,' 'Charles Joly,' Syringa 

 pubcscens, 1 De Breitschneider,' or Syringa Emodi rosea, and Syringa 

 Josikaea. — M. L. H. 



