226 ELEMENTS OF BOTANY. 



cles axillary, 2-bracted, 2-flowered ; flowers white or piuk, fading to 

 yellow, bilabiate, the lips nearly as long as the pubescent tube ; sta- 

 mens and style exserted; fruit black. May- August. Introduced 

 from Japan ; common in cultivation. 



V. DIERVILLA. 



Shrubs : leaves serrate, short-petioled ; flowers in axillary 

 cymes ; calyx tube oblong, 5-toothed, teeth linear ; corolla 

 funnel-form, gibbous at the base, nearly equally 5-lobed ; sta- 

 mens 5; ovary 2-celled, many-ovuled, style slender, stigma 

 capitate ; fruit a 2-celled, 2-valved, many -seeded capsule. 



D. Japonica Thunb. AVeigela. A stout, branching shrub 3-6 

 ft. high ; leaves broadly oval, acute at the apex, rounded at the base, 

 coarsely serrate, rough above, pubescent beneath, short-petioled ; 

 flowers spreading, funnel-form, rose-color, 1-H i"- long; calyx lobes 

 deciduous ; corolla pubescent without, the lobes spreading ; capsule 

 oblong or fusiform ; seeds reticulate-winged. April-May. Intro- 

 duced from Japan; common in cultivation. 



120. VALERIANACE^. VALERIAN FAMILY. 



Annual or perennial herbs ; leaves opposite, exstipulate ; 

 flowers perfect or polygamo-dioecious, in panicled or corym- 

 bose cymes ; calyx tube adherent to the ovary, the limb 

 toothed, lobed, pappus-like or w^anting; corolla tubular to 

 fuiinel-form, 5-lobed, gibbous at the base ; stamens mostly 3, 

 inserted in the tube of the corolla ; ovary 3-celled, 2 of the 

 cells abortive, the other containing a single ovule ; style fili- 

 form, stigma entire or lobed ; fruit a nerved achene. 



VALERIANELLA. 



Annual herbs ; stem forking regularly ; leaves opposite, 

 entire or dentate ; flowers in crowded, terminal, bracted 

 cymes ; calyx limb toothed or wanting ; corolla white or pur- 

 plish, funnel-form, 5-lobed; stamens 3; style 3-lobed ; fruit 

 3-celled, 1-seeded. 



1. V. Locusta (L.) Bettke. Lamb Lettuce. Stem erect, 

 smooth, or pubescent at the nodes, many times forked, 9-12 in. 



