266 The Botanical, Gazette. [September, 



ited a series of colored illustrations representing the external 

 appearance of the plant affected by the different diseases. 



ALWOOD, Virginia, made some remarks on the artificial 

 pollination of wheat. He exhibited the varieties of wheat 

 artificially pollinated and the resultant crosses. The method 

 used in the experiments was described in detail. 



C RANDALL, Colorado, exhibited the fruit of the wild scr- 

 vice berry (Amelanchier alnifolia), and spoke of attempts be- 

 ing made to domesticate the fruit. 



On the 14th the section was called to order, by the chair- 

 man at 2:30 l\ M. 



■Officers were elected for the ensuing year: GLO. F. AT- 

 KINSON, Alabama, Chairman; L. H. PAMMEL, Iowa, Secre- 

 tary. 



pAMMEIo, Iowa, presented some notes on a destructive dis- 



the ckerrv. caused bv a Cladosnorium. The damage 



»/ 



amounted to 25 per cent. The disease is also common on 

 wild plums. 



An informal discussion followed upon the germination of 

 seeds of Vaccinium ; the distribution of plants as governed by 

 character of soil, heat, moisture, etc. 



Halsted, New Jersey, presented Notes upon Monilia frnc- 

 tigena and spore germination. — This cherry fungus was col- 

 lected upon excrescences of a wild plum, caused ty Tajhrina 

 Prtmi, in Mississippi, and cherries were inoculated with it. 

 These became badly diseased, while the checks remained 

 sound. Inoculation showed that the fungus would grow also 

 upon green and ripe tomatoes, and other vegetable substances, 

 though not so well as upon cherries. The action of fungicides 

 was tested upon spore germination, the cultures being 

 attempted in concave ground slides. A piece of metallic copper 

 foil, thoroughly scoured, as large as the end of a lead pencil, 

 was placed in the bottom of the cell in the water. The spores 

 failed to germinate in presence of this copper foil. Tests were 

 also made with ammoniacal carbonate of copper compound of 

 various strengths, beginning with the strongest, i. e., three 

 ounces of carbonate of copper to one quart of ammonia. 

 Spores wen killed by this, also bv the half, fifth and twentieth 

 strength. Again one part of the fungicide of vineyard 

 strength was added to ninety-nine parts water. Spores failed 



