EXTRACTS EROM PROCEEDINGS. 



Ivii 



Mat 5, 1868. 

 Wilson Saunders in the Chair. 



The Minutes of the last Meeting were read and approved. 



Dr. Masters made some observations on a peculiarity of struc- 

 ture which he had observed in the petals of the female Aucuba. 

 They are much more strongly studded than those of the male with 

 minute warts, which terminate in a little hair, and are sprinkled 

 with plates of cuticular tissue. The pollen-grains, which retain 

 their fecundity a long time, become entangled amongst them, and 

 impregnation by insects is in consequence promoted. 



A letter from Gr. Maw, Esq., offering to promote the views of- 

 the Committee was read, and the Secretary directed to communi- 

 cate with him. 



Two pieces of Fir were sent by G. D. Pollock, Esq., supposed to 

 have been killed by an insect burrowing in the inner portion of 

 the bark. 



Further information was desired as to the condition of the trees 

 before attacked by insects. 



A letter from Mr. Earley, of Digswell, on the spot in Orchids 

 was read. 



A letter on the same subject from Mr. James Hossack was 

 read. 



The Committee then proceeded to the order of the day, viz. the 

 discussion on the spot in Orchids. 



Mr. Berkeley adverted to the articles by himself and Mr. 

 Anderson in the ' Gardeners' Chronicle ' for February 18, 1865, 

 and showed some of the specimens in a dried state on which those 

 articles were founded, distinguishing three forms of spot, the chlo- 

 rotic, the black spot, and the putrid spot, besides spots arising 

 from fumigation. 



Mr. Marshall brought a great quantity of illustrative specimens, 

 in one of which the three forms mentioned above were present at 

 the same time. He brought, also, one, simulating the black spot, 

 produced by Thrips. He stated that many valuable plants be- 

 came unhealthy from sudden checks at floral shows. 



Double-glazing was stated to be the surest remedy as far as they 

 were affected by drip. 



Mr. Blenkins made some observations on the microscopic con- 

 dition of the leaves, especially of the stomates, whose guard-cells 



VOL. II. / 



