230 DESCRIPTIONS OF THE SHRUBS 



blossoms after expanding. Some which open pure white change to pale 

 pink and end as bright carmine. Weigela fl6rida has several forms with 

 variegated white and yellow foliage. As with the roses and their num- 

 berless hybrids, so here it is impossible to show, without the finest colored 

 illustrations, the named forms in cultivation. [Twig cuttings.] 



KEY TO THE SPECIES OF WEIGELA 



* Anthers of the stamens separate, not united around the pistil. (A.) 

 A. Flowers not definitely yellow and an inch or more long. (B.) 



B. Calyx united at the base and sometimes to the middle ; stigma 

 decidedly 2-lobed. ; seeds without thin wing-like projections. 

 Common Weigela (385) — Weigela fl6rida. 

 B. Calyx of 5 separate linear pieces ; stigma broad and head-like ; 

 seeds with wings. (C.) 

 C. Shrub 5-10 feet high and nearly smooth throughout ; flowers 

 and leaves large ; flowers not abundant. Large-flowered 

 Weigela (380) — Weigela grandiflora. 

 C. Shrub 4-8 feet and pubescent, lower sides of leaves espe- 

 cially so ; flowers pubescent outside. (D.) 

 D. Corolla abruptly narrowed below the middle ; flower- 

 clusters short-stalked. Japan AYeigela (387) — Weigela 

 jap6nica. 

 D. Corolla gradually narrowed to the base ; flower-clusters 

 about sessile ; plant more vigorous ; flowers smaller and 

 more abundant. Many-flowered Weigela (388) 

 Weigela floribunda. 

 A. Flowers yellow, small, i-| inch, plainly 2-lipped, Diervilla 

 proper. (E.) 

 E. Leaves distinctly stalked : branchlets round. Diervilla. 

 Bush ' Honeysuckle ' (389) — Diervilla Lonfcera (D. trifida). 

 E. Leaves nearly sessile ; branchlets square. High-bush ' Honey- 

 suckle ' — Diervilla sessilif61ia. 



* Anthers of the stamens united around the pistil; flowers broad-fun- 



nel-form, yellowish white spotted with orange and purple; calyx 

 notched and irregular. Low shrub to 3 feet. Middendorf's Wei- 

 gela (390) — Weigela Middendorfiana. 



On the following page are illustrations of two of the hybrid forms (391). 

 Eva Rathke Weigela — Weigela (Diervilla) Eva Rathke — deep car- 

 mine red, blooming late, June and July. Desboisi's Weigela — Weigela 

 Desboisi — deep rose, blooming May. 



