38 Addisonia 



plant. I am very fond of the plant for the fine color of the leaves 

 and for its easy propagation." 



It is easily propagated from leaf plantings. 



In its technical characters this genus comes close to Graptopetalum 

 but in its habit and leaves it resembles more the genus Echeveria, 

 differing from it chiefly in its corolla. It is named for Edward M. 

 Byrnes, for many years Superintendent and now Assistant in 

 Charge, Experiment Gardens and Grounds, United States Depart- 

 ment of Agriculture, Washington, D. C., whose landscape work 

 there has added so much to the beauty and usefulness of this park. 



Weinberg's stonecrop is at first without a stem but in time 

 becomes five to seven inches long with a rosette of leaves at the top. 

 These leaves are thick and broad with a flat or somewhat incurved 

 upper face, more or less apiculate; the inflorescence is a few- 

 branched cyme, coming from the axils of upper leaves. The corolla 

 is rotate, the five parts being united into a short tube ; the stamens 

 are ten, spreading; the carpels are five. 



J. N. Rose. 



Explanation of Plate. Fig. 1. — Flowering plant. Fig. 2. — Single 

 flower, cut open. 



