PLANT DISEASES OF CONNECTICUT. 345 



the twigs, and in these the fragile, white peridia, or fruiting 

 cups, develop, and upon opening disclose a mass of bright orange- 

 colored spores that by their color and microscopic characters are 

 easily distinguished from the other two species previously 

 reported. One of the specimens sent in the late fall showed 

 the young twig swollen and still alive, while the fruiting 

 pustules had not yet developed. This indicated that the twig 

 might live over the winter and develop this stage the follow- 

 ing spring. Ordinarily these swellings develop their fruiting 

 bodies, and then are gradually killed by the fungus, so that the 

 next season no further development occurs on them or on the 

 uninjured portion of the twig below, thus showing that the 

 fungus is not perennial on the host. The III, or Gymnosporan- 

 gium, stage of the fungus occurs on both the red cedar and 

 the common juniper in spring, and is spread from these to its 

 alternate rosaceous hosts, among which, besides those already 

 mentioned, is the Juneberry. 



BANANA, Musa sapientum. 



ANTHRACNOSE, Gloeosporiitm musarum Cke. & Mass. This 

 fungus is not uncommonly found on bananas in our markets. 

 It causes a blackening and dry decay of the skin. Eventually 

 the fruiting stage shows as small, pinkish, more or less numerous 

 exudations. If kept in a moist chamber, these become much 

 more prominent. Cultures are easily obtained, and these pro- 

 duce only the conidial stage. As these cultures differ somewhat 

 in appearance from those of the bitter rot of apple, and never 

 with us have developed any asco-stage, we believe Shear is cor- 

 rect in considering it a distinct species. It is doubtful if Myxo- 

 sporium Musae B. & C. (Grev. 3: 13), later issued by Ellis and 

 Everhart (N. A. F. n. 2672) as Glceosporium Musae, is different, 

 if we judge by the Ellis specimen, though the original descrip- 

 tion gives the spores as somewhat smaller than in the species 

 under consideration here. 



CABBAGE, Brassica oleracea. 



BLACK BACTERIAL ROT, Pseudomonas campestris (Pamm.) 

 Smith. PI. XX a-b. This disease occurs on a number of related 

 cruciferous plants, but we have reported it from this state before 

 only on cauliflower. While we did not see it on cabbage until 



