59 



lIVlHtANCKA AKHORESCENS VAU. STEUILIS T(»KK 

 AS AN OIIXAMEXTAT. PLANT. 



A.\l> CKAV 



of the iM.laiiiciil 

 tlic vci'V slKtwy 



I <irhons,< „x I... 



cii's wliicli jfi-dw 



David M. Mottikk. 



From time to Iiin(> dnriiiii the piisl twriity yc-ii-s. iiiciiihci 

 staff of Indiana I'lih cisity liavc iiointcd out to stlld(■nt^ 

 and consiiicuous siiccinions of the sterile form of lli/dnnnii 

 lo he found occasionally amon.i;- tlio fertile plants of tlie s] 

 ahimdautly on rocky hanks, in siiaded ravines and alonj;: streams in Monroe 

 County, Indiana. These sterile specimens are very eonspieiious because of 

 the large, showy, snow-white flower clusters, in which not a single fruit is 

 developed. Upon plants in their native habitiit in the woods, the clusters 

 of cymes often attain, in thrifty individuals, a diameter of from six to eight 

 inches. Owing to their promising character as ornamental plants, and be- 

 cause of hardiness, specimens of sterile individuals were transplanted to the 

 grounds of a local gardener near the university, where they have been under 

 cultivation for a number of years. The plant is easily propagated from 

 stem cuttings, and, in the second year, if primed to a single cane or two, 

 the clusters of flowers maj- attain a diameter of from fourteen to sixteen 

 inches. For this reason, and because of the fact that sterile forms of Hyd- 

 rdngca arhorcsccns are listed and offered for sale by florists under other 

 names than Hydrangea ariorenccns var. sterilis Torr and Graj', the writer 



var. sterilis. A clump transplantert when 



s lawn. It is lliree I'eet in diameter at the 



largo heads uf lldwers. (Courtesy of Mr. llujrh 



became interested in the probable origin of the sterile form as it occurs in 

 this vicinity, and to know whether the plant advertised under other names 



