178 



BOTANICAL NOTES. 



tion — whichever happens to come first, indeed, does so — and in 

 exceptional cases both have been seen to copulate simultaneously 

 with the egg-nucleus. In fixed preparations the male nucleus may 

 be seen, withm the egg-cell, at various distances fi-om the egg-nucleus, 

 going to perform its functions. Its movement may be due to the 

 influence of the egg-plasma which receives the male-nucleus brought 

 by the pollen-tube plasma, and carries it to the nucleus of the egg. 

 To the plasma of the pollen-tube, therefore, is allotted the same role 

 as to the locomotive organs of spermatozoids ; while the substance 

 of the vegetative cell-nucleus, and that of the generative cell- 

 nucleus not employed in fertilisation, may serve for the nourish- 

 ment of the germ-nucleus in the fertilised egg. The two nuclei 

 having been thus brought together blend into one, as do sub- 

 sequently their nucleoli, and the act of fertilisation is accom- 

 plished. Meanwhile the egg has clothed itself with a thin cellulose 

 wall, and is thus ready to enter upon those changes which ultimately 

 result in the formation of an embryo. 



(To be continued.) 



BOTANICAL NOTES. 



Plants of the Bradford District.— At a recent meeting of the Brad- 

 ford Naturalists' Society, Messrs. H. T. Soppitt and W. West reported on the 

 work done by the botanical section during the year. The following are amongst 

 this year's additions : — 33 species of Phanerogams, including Polygonatum officinale 

 from Grassington, Genista anglica from Wilsden and Eldwick, MyriopJiylhim 

 verticillahim from Keighley, Medicago denticidata and M . viacidata from Heaton, 

 and 16 species of Riibtis^ including y?, affinis, R. bloxamii. R . sprengelii, R. concinnus, 

 R. mitcronulatiLS, and R. macrophylhis ; of Vascular Cryptogams, Lastrea spimc- 

 losa from Shipley Glen, &c., and Chara fragilis from near Keighley; of Fungi 72, 

 including Urocystis fischeri (a species hitherto unrecorded as British) from 

 Saltaire ; Lepiota procerics^ Lentimis lepidetcs, Boletus arnara, B. piperatus, 

 B. felleiis, Riissida nitida, Pticcinia cirsii, Puccinia anthoxanthi^ Peronospora alta ; 

 of Ijichens, Lecidea C7(pzdaj-is from Malham, &c. , Z. ccerideo-nigricans from Malham, 

 Z. paraseina from Ilkley, Solorina linibata from Whernside, Peltigera aphthosa 

 from Ingleton, and Utuhilicaria polyphyda from Baildon, Wilsden, (S:c. ; of 

 Hepaticae, Scapaiua barilingii from Bolton Woods, and new localities for the 

 following species, Lejetinia echinata from Gordale, Scapania atrta from Baildon, 

 Bazzania trilobata from Baildon ; of Freshwater Algae 30 species, including 

 Cylindrocystis diplospora, Staiirastrnm orthosticJuLm, Hyalotheca dissiliens, and 

 Micrastei-ias crenata from near Cullingworth. In addition to the above a large 

 number of rare plants already known for the district have been found in new 

 localities. Amongst the Mosses are Fissideiis crassipes from Malham, and Seligeria 

 piisiUa from Gordale. 



Corallorhiza innata in Northumberland.— I * see from the 



communication of Rev. H. E. Fox (p. 139), that I have inadvertently misled him 

 as to a second Northumbrian station for CoraUorhiza. The locality which I 

 mentioned to him is not in Alnwater, Northumberland, but on Alewater, 

 Berwickshire, where this rare orchid was found by Mr. M. Shaw, curator of the 

 Berwick Museum, growing in considerable quantity. — T. W. Maclagan, 

 Berwick-on-Tweed. January 6th, 1885. 



Naturalist, 



