NOTES AND ABSTEACTS. 



779 



seven tigs.). — This is a full and circumstantial account of the fungus 

 disease of cotton, called Anthracnose, which is well known in the United 

 States, and is attributed to Colletotrichum gossypii (South), which is 

 succeeded in some instances by a species of Fusarium. This paper adds 

 little to what was already known, and there is no reason to suppose that 

 the fungus differs in any way from the ordinary pest, which has occupied 

 attention in the United States. — M. C. C. 



Crab Apples, Varieties of (U.S.A. Exp. Stn. Virginia, Bull. 

 132 ; 1/1902). — The cultivation of Crab Apples is advocated on account ot 

 their culinary value, their value in making jelly, cider, &c, and their beauty 

 in flower and fruit. The following varieties are recommended for planting 

 in Virginia : — 1 Blushing Maid,' 1 Hyslop,' ' Lake Yellow,' ' Montreal,' 

 1 Queen,' ' Eed Siberian,' ' Transcendent,' and possibly ' Whitney,' but the 

 last is susceptible to fungal attacks of various sorts. ' Elgin,' ' English,' 

 'Maiden Blush,' 'Quaker Beauty,' and * Soulard ' have not proved so 

 useful. Other varieties are under trial. The orchard was planted in 

 1888. — F. J. C. 



Crossosoma californicum. By W. B. H. (Bot. Mag. t. 7949).— 

 Native of California. Nat. ord. Dilleniacece. This is a dwarf shrub with 

 oblong lanceolate, coriaceous leaves. Flowers white, about 2 inches diam., 

 with many yellow anthered stamens. — G. H. 



Crotalaria capensis. By W. B. H. (Bot. Mag. t. 7950).— Native 

 of South Africa. Nat. ord. Leguminosce ; tribe Gcnistece. First intro- 

 duced in 1774 to Kew. It is a branching evergreen shrub, 5 to 10 feet 

 high, with trifoliate leaves and racemes of fragrant yellow flowers, striped 

 with red-brown, 1^ inch diam. — G. H. 



Cryptomeria japonica : The Gametophytes, Fertilisation, 

 and Embryo Of. By Anstruther A. Lawson (Ann. Bot. xviii. July 

 1904, pp. 417-441 ; 4 plates). — A full account of the fertilisation of this 

 plant ; from the main results the following points may be noted : — 



The reduction division which leads to the formation of the tetrads 

 takes place during the latter half of October, although pollination does 

 not take place until March of the following spring. Both male cells in 

 the pollen tube are functional. The cell-walls in the prothallium are 

 formed as the result of a peculiar method of free cell-formation. 



As near as could be estimated there are nine or ten chromosomes in 

 the nucleus of the gametophyte, and eighteen or twenty in the 

 sporophyte. — A. D. C. 



Cryptostegla madag-aseariensis. By W. B. H. (Bot. Mag. 

 t. 7984). — Native of Madagascar. Nat. ord. Asclepiadacece ; tribe Peri- 

 plocece. A climbing glabrous shrub. Leaves coriaceous, lanceolate to 

 orbicular ; flowers in terminal cymes, 2^ to 3 inches across, rose-coloured. 



G. H. 



Cunonia capensis. Anon. (Gard. Mag. 2670, p. 857 ; 31/12/04).— 

 An illustration of this rare Cape shrub, so seldom seen in flower in this 



