1164 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



kept at He-stock, has recently been acquired by the French Government, 

 who have placed it in the Museum at the Jardin des Plantes, where it 

 may be consulted. — G. S. S. 



Lavatera aeerifolia. By Sir J. D. Hooker (Bot. Mag. tab. 7865). 

 Nat. ord. Malvacea, tribe Malvece. Native of the Canary Islands. It is 

 a shrub 4-8 ft. high, with axillary flowers 3 ins. in diameter, the corolla 

 being pale violet or rose-coloured with crimson base. — G. II. 



Lawn Grasses, Sowing. By J. Bracken {Gard. Mag. 2582, p. 285 ; 

 10 5 1902). — A clear and practical article upon this subject. The kinds 

 of Grass for particular soils are named, and also the Grasses that succeed 

 best in dry and damp situations and in shade. The quantity of seed 

 to sow for each hundred yards is stated in varying proportions for par- 

 ticular soils, as well as the details of sowing and after treatment. 



The writer finds that black thread stretched across the newly sown 

 plots at different heights is a good way of protecting the seeds from birds. 

 He recommends various mixtures for different soils, and in all cases 

 includes Clover, which serves well for ordinary lawns ; but for tennis and 

 other lawn games there should never be Clover sown with the Grass, as 

 it becomes slippery in moist weather and from dew on evenings of hot 

 and dry days, thus making the lawns dangerous to the players. 



IF. G. 



Lettuce-forcing* in Utah. (U.S.A. Exp. Stn. Agr. Coll. Utah 

 Bull. 76, 1902 ; 2 plates).— The details of some experiments in forcing 

 Lettuce at the Experiment Station of the Agricultural College of Utah. 

 The attempts were necessarily on a very small scale through lack of 

 space, and were continued for two years, two crops being reared each year. 

 The varieties chosen were Grand Rapid and Denver Market, and the 

 results showed that 1 part manure, 1 part sand, and 1 part leaf-mould 

 is the soil to be recommended, and that Grand Rapid is the most valuable 

 variety for the purpose. — M. L. II. 



Lichens, New {Beth. Bot. Cent. bd. xiii. ht. 2, pp. 149 163).— 



Dr. A. Zahlbruckner describes a series of new Lichens from Los Angeles, 

 California, collected by Dr. H. E. Hasse.— G. F. S.-E. 



Lilies Of the World. By Peter Barr (Journ. Ilort. Oct. 16, 1902, 

 pp. 864 and 877). — This experienced traveller describes the cultivation of 

 these in different climates visited by him. — C. W. D. 



Lippia nodiflora (U.S.A. Exp. Stn. Arizona, Bull. 15; 1902).— 

 This plant has been distributed by the station as a sand-binder, and is 

 said to be an excellent drought-resister. — F. J. C. 



Liverworts in Baden (Beth. Bot. Cent. bd. xiii. ht. 1, pp. 91-104). — 

 HerrKarl Muller (Freiburg im Breisgau) publishes a list of 78 Liverworts, 

 with localities and critical remarks. Two new species of Cincinuidus 

 ;irc dt-cribed, as also several new or imperfectly understood varieties. 



G. F. S.-E. 



