E: 



221 



^ rendu, xxvii., pp, 17.) A supplementary volume to "the Flora 



Orientalis of Boissier is soon to appear, for which Dr. H. Christ 

 has monographed the Roses. M. Crepin reviews his work, giv- 

 mg his views on the classification and newly described species, 

 and concludes with a table of the distribution of species. 



Dr. C. F. Millspaugh wishes to state to 

 those who have so kindly aided him in his work upon the genus 

 Euphorbia, that his field work in his locality this season has 

 compelled him to drop his special study until autumn, when all 

 who have identifications, &c-, in his hands will be carefully 

 remembered. The doctor will still be very thankful for speci- 

 niens (either named or for identification), and also for notes on 

 the genus, sent to his herbarium at Waverly, N. Y. 



Postlmnwiis publication of Prof. Tiickernian s Manuscripts. 

 Mr. Willey authorizes us to announce that it is in contempla- 

 tion to publish the present season, the lichen manuscript of the 

 late Prof Tuckerman, comprising the Lecideacei, and the Graphi- 

 dacei in part. As the edition will not be large, it would be well 

 for those desiring the work to send their names to Henry Willey, 



New Bedford, Mass. 

 Hybridization in 



J 



intendent of the Royal Botanic Gardens of Trinidad, expresses the 

 opinion that hybridization in the genus Citrus is very common. 

 He says emphatically that they " do not generally come true 

 from seed, unless the trees producing the seed are isolated 

 from other species of the genus, on account of hybridization 

 occurring among them." 



Society of American Florists. — The fourth annual meeting of 

 the Society of American Florists will be held in Cooper Union, 

 New York, beginning August 2ist. An e.xhibition oi flowers, 

 plants and florists' supplies and apparatus will be held at Nilsson 

 Hall, under the auspices of the society, at the same time, and our 

 botanists will no doubt find that considerable matter of interest to 

 them will be discussed and exhibited. All who desire to become 

 members for the time being with the privilege of attending the 

 meetings and exhibitions, and enjoying the social courtesies 



