75 
Pink 
ee Group Waldeck-Rousseau Group 
(cluster open) (cluster open) 
Chr ene eee Group Charles Sargent Group 
(cluster dense) (cluster dense) 
Emil Liebig Group 
(cluster small) 
Reddish 
Charles X Group Charles Joly Group 
(cluster medium) (dark) 
Reaumur Group 
(cluster large) 
Rochambeau Group 
(flowers extra large) 
Bluish 
Bleuatre Group Emil Gentil Group 
(dark 
Ronsard Group 
(light) 
Moss RAVINE 
During the winter of 1936-37 the construction of the shady 
moss ravine was completed. In the spring about twenty-five 
species of mosses, liverworts, and lichens were gradually planted 
and labeled. During the summer several of these died out. 
Among those that have become fairly well established are Mosses: 
Polytrichum, Pogonatum, Leucobryum, Dicranum, Anomodon, and 
Bartramia. Webera, Climacium, Mnium, Thuidium, and Sphag- 
num died. Liverworts: Conocephalum; all others died. Lichens: 
Baeonvyces and two species of Cladonia were in good condition 
in the fall. 
PLANTINGS 
Mr. C. F. Doney, assistant in woody plants, reports that about 
two hundred plants were moved from the nursery to the grounds. 
Of these, seventy were additional new species in the Systematic 
Section. Some new genera, as Aphananthe, Fortunearia, and 
Ehretia, were added to the grounds. In the north section of the 
Garden supplementary groups of Viburnum and Berberis were 
made. Collections of horticultural varieties of Philadelphus, 
Weigela, and I/ibiscus were started on the reservoir embankment. 
About sixty-five photographs of woody plants in flower were 
taken by Mr. Buhle; many of these will be used for colored slides. 
Progress was made, with the assistance of Mrs. Putz, in ob- 
taining a greater variety of herbaceous plants. The absence of 
