ABSTRACTS. 



327 



studied the effects of glycerine and alcohol, which are curiously different, 

 though both are dehydrating media. — -M. H. 



Liatris pycnostachya. ByCarlRade (Die Gart. p. 169 ; 11/1/1902). 

 The illustration shows a large group on the Margaretheninsel at Buda- 

 pest (Hungary), well and rightly recommended as one of the best 

 perennials for a fairly moist spot. The colour of the flower is violet, 

 disposed in spikes flowering downwards, and not upwards, as in most 

 spicate flowers. — G. B. 



Lilacs, New Hybrid. By Louis Henry (Bev. Hort. pp. 40, 41 ; 

 January 16, 1902). — Coloured plate of S. Bretschneideri and S. Josikcea y 

 with description. Two distinct forms derived from same parents by 

 inverse crossing. — G. T. D. 



Lilium glganteum. By. E. Jenkins (Garden, No. 1585, p. 220 ; 

 5/4/1902). — Possibly of no Lily grown to-day are particulars of practical 

 cultivation more widely welcomed than of this fine species, and the con- 

 ditions upon which much of its successful flowering depends are here 

 detailed. Aspect is taken as being the most important of the primary 

 considerations. A position reached by the morning sun as late as possible 

 is best. — E. T. C. 



Lily, Fertilisation of. By M. Jules Burvenich (Bev. Hort. Beige, 

 xxvii. No. 12, p. 266). — The writer observes that many Lilies fail to set 

 seed though artificially pollinated, as, e.g., Lilium croceum ; but when it was 

 pollinated by pollen brought from some distance success followed. 



G. H. 



Limnoeharis emarginata, Embryo-logical Study of. By 



J. G. Hall (Bot. Gaz. xxxiii., No. 3, p. 214 ; pi. 9). — The author traces 

 the development of the ovule from its first beginning as an excrescence 

 from the wall of the carpel, as in Butomus, with complete development. 

 Each stage is figured. — G. H. 



Liparis tricallosa. By Sir J. D. Hooker (Bot. Mag. tab. 7804). 

 Nat. ord. Orchidece, tribe Epidendrece.—N&tixQ of the Malay Penin- 

 sula and Sulu Archipelago. It was discovered by Mr. Burbidge. The 

 sepals are lemon-yellow, the petals and striations of the lip are lake-red- 

 It first flowered with Mr. Bull in 1879. — G. H. 



Lycaste brevispatha. By R. A. R. (Orch. Bev. p. 113; April 

 1902 ; fig.). — Historical and other interesting particulars are enumerated. 



H. J. C. 



Ly thrum rivulare. By E. Koehne (Joum. Bot. 470, pp. 68, 69 ; 

 2 1902). — A suggestion that this species is a form of Nescea sagittifolia, 

 with a synopsis of the eight known species, all South African, of the 

 section Salicariastrum of the genus Nescea. — G. S. B. 



Macaroni Wheats. By M. A. Carleton (U.S.A. Dep. Agr. (Bur. 

 PI. Ind.), Bull. 3 ; December 23, 1901 ; 12 plates ; 1 map).— A full and 

 instructive account of the efforts which the Department has been making 



