236 DESCRIPTIONS OF THE SHRUBS 



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

 pink and end as bright carmine. Weigela flbrida 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 OP 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 flbrida. 

 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 ; fiowers 

 and leaves large ; flowers not abundant. Large-flowered 

 Weigela (386) — Weigela grandiflbra. 

 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 Weigela (387) — Weigela 

 japdnica. 

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

 about sessile ; plant more vigorous ; flowers smaller and 

 more abundant. Many-flowered Weigela (388) 

 Weigela floribiinda. 

 A. riowers yellow, small, J-| inch, plainly 2-lipped, Diervilla 

 proper. (B.) 

 E. Leaves distinctly stalked : branchlets round. Diekvilla. 

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

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

 suckle '■ — ■ Diervilla sessilifdlia. 

 "Anthers of the stamens united around the pistil; fiowers 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 MiddendorfiS,na. 



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. 



