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completion of his monograph c on the Coryneliaceae, a group of 
parasitic fungi which occur mainly in the tropics. 
Volume 24, part 1, of North American Flora, was issued April 25, 
1919. It comprises a part of the tribe Psoraleae of the family 
Fabaceae, by Dr. P. A. Rydberg, curator at the Garden; the 
genus Lysenhardtia by Dr. Francis W. Pennell, associate curator. 
Dr. W. A. Murrill, supervisor of public instruction, addressed 
the North Country Garden Club, at Westbury, Long Island, 
on May 28 on “Trees,” and followed his lecture by an inspec- 
tion of the trees on the grounds of his hostess, Mrs. Beekman 
Winthrop. 
Meteorology for April-—The total precipitation for the month 
was 2.80 inches. The maximum temperatures for each week 
were 65° on the 4th, 70° on the 8th, 68° on the 19th, and 71° on 
the 27th. The minimum temperatures were 38° on the 14th, 
36° on the 19th, 28° on the 25th, and 37° on the 30th. 
Mr. Marshall O. Howe, of Brattleboro, Vermont, died May 13, 
aged 86 years. Mr. Howe had long been interested in the local 
flora of his region, and was the father of two well-known botan- 
ists, Dr. Clifton D. Howe, of the University of Toronto, and Dr. 
Marshall A. Howe, curator of algae at the Garden. 
Dr. Francis W. Pennell, associate curator at the Garden, 
addressed the Botanical Society of Pennsylvania at the Uni- 
versity of Pennsylvania, Philadelphia, April 28, describing his 
botanical exploration of the eastern Andes of Colombia. On 
May 3 Dr. Pennell spoke on “ The wild flowers of spring” to the 
boys of the Loomis Institute, Windsor, Conn. 
An ornithological event of unusual interest in the Garden was 
the nesting of a Black Duck. A representative of the American 
Museum of Natural History verified the identification and 
