GENERAL CATALOGUE. 



95 



Spiraea Thunbergii. THtJNBERG's SpiB^A. D. Of dwarf habit and rounded, graceful form ; branches slender 

 and somewhat drooping; follag-e narrow and yellowish trreen ; flowers small, white, appearing early in 

 spring, being one of the first Spirseas to flower. Esteemed on account of its neat, graceful habit. Forces 

 well in winter. 35c. 



S. trilobata. Three-lobbd Ppir^a. D. A vigorous grower. Three-lobed leaves; white flowers. 3oc. 



S. ulmifolia. Elm-leaved SpiRjEA. D. Leaves somewhat resembling those of the elm, and large, round 



clusters of white flowers in June. (See cut.) 35c. 

 S. "Van Houttei. D. Without doubt the finest variety in the collection. At the flowering season iu early June the 



plant is covered with a mass of large, white flowers, presenting a beautiful appearar ".e. Hardy. (See cut.) 33c. 



Spir^a Van Houttei. (Reduced.) 



The Spir^as flower in the following order, from the middle of May to the middle of August : (1.) ArgiUa, 

 ■pi-unifolia fl. pi., Thiuibergli. (2.) Niconderti, tenissima. (3.) chamcBdrifolia. (i.) Van Houttei, cratcBglfolia, lanceolata, 

 lanceolata fl. pi., lanceolata robvsta. (o.) tdmifolia. (6.) opuUfolia aurea, crenata. (7.) Fontenaysii, salicifolia, sorbi- 

 folia. (8.) Billardi. (9.) arioefolia. 0.0.) caUosa, mllosa alba, callosa superba, species japonica. 



