1900] MICROSCOPICAL JOURNAL. 27 



distributed a paper on the Rusts of Indiana (Proc. Ind. 

 Sci. 1898 : 174). The list is made in accordance with the 

 latest nomenclature, sothatagoodmany names are changed. 

 Some of the common genera like Phragmidium appear un- 

 der the name of Aregma. In accordance with Kuntze's 

 revision, Uromyces becomes Caeomurus, while Puccinia 

 becomes Diacaeoma. Gymnosporangium becomes Puccinia. 

 The old Puccinia graminis and Aecidium berberidi be- 

 comes Dicaeoma poculiforme (Jacq) Kuntze, Puccinia rubi- 

 go-vera becomes Dicaeoma asperifolii (Pers) Kuntze. It is 

 unfortunate that names which have been in use in some 

 cases for nearly one hundred years should now be dis- 

 placed. It is doubtful, however, if economic botanists will 

 adopt these names since the old names are so well fixed, in 

 connection with various diseases described. 



Notes on Travel.— David G. Fairchild (Bot. Gazette 29: 

 122) of the U. S. Department of Agriculture is presenting 

 some interesting biological observations on the general 

 character of the vegetation of South American countries 

 visited by the Barbour Lathrop Expedition. In a late num- 

 ber he discusses briefly the biological conditions of Venez- 

 uela. He says — "Venezuela landscapes show a larger pro- 

 portion of Xerophytes than I had expected to see and a ten 

 minutes tram ride to the small bathing place of Moquendo 

 gave me a good opportunity of seeing the characteristic 

 cactus vegetation of the coast." 



Comparative Embryology of Rubiaceae. — Francis E. 

 Lloyd is undertaking a study of the Embryology of tha 

 Rubiaceae a highly specialized and polymorphous family. 

 This large order has been studied but little from an era- 

 bryological standpoint. His studies will be awaited with 

 interest. The first paper takes up Vaillantia hispida. 

 "There can be little doubt that the rapid development of 

 seeds is an important adaptive feature, and the study of 

 structures which are correlated with this ability will be a 

 fertile field for further study. Such haustorial structures 

 as these found in Orchidaceae may be correlated with the 



