212 ELEMENTS OF BOTANY. 



oblong, serrate, sessile or clasping' at the base ; peduncles slender, 

 longer than tlie flowers ; corolla violet, about 1 in. long, lower lip 

 puberulent within. June-September. Along streams and in wet 

 places. 



2. M. ALATus Soland. Sharp-winged Monkey Flower. Stern 

 square, wing-angled, erect, smooth, 1-2 ft. high ; leaves ovate to 

 oblong, acuminate, serrate, short-petioled ; peduncles shorter than 

 the flowers ; calyx teeth short ; corolla violet, about 1 in. long. 

 June-August. In swamps and wet places. 



VIII. LEPTANDRA. 



Perennial herbs ; stems tall, stout ; leaves opposite or ver- 

 ticillate ; flowers in dense terminal or axillary peduncled 

 spikes ; calyx small, 4-parted ; corolla tubular, 4-lobed, the 

 lobes nearly equal ; stamens 2, long-exserted ; style long and 

 slender, stigma capitate ; capsule ovoid, 4-valved, seeds 

 reticulated. 



L. Virginica (L.) i^Litt. Culver's Root. Stem erect, smooth 

 or slightly pubescent, simple or with few branches above, 2-5 ft. 

 high ; leaves 3-7 in a whorl, lanceolate to oblong, acuminate at the 

 apex, sharply serrate, smooth or sometimes pubescent beneath, short- 

 petioled; spikes solitary or several; fiow^ers bi-acted, small, white or 

 purplish ; stamens nearly twice the length of the corolla ; capsule 

 twice the length of the calyx. June-August. In meadows and 

 open woods. 



IX. DASYSTOMA. 



Coarse annual or perennial herbs ; leaves opposite ; flowers 

 yellow^, in terminal leafy racemes or panicles : calyx bell- 

 shaped, o-lobed, the lobes often toothed ; corolla tubular-bell- 

 shaped, woolly within, the limb spreading, 5-lobed, slightly 

 irregular ; stamens 4, included, didynamous, woolly, anthers 

 awned at the base ; style filiform, thickened at the apex ; 

 fruit an ovate, 2-valved capsule. 



1. D. flava (L.) Wood, Downy False Foxglove. Peren- 

 nial ; stem erect, dowaiy, mostly simple, 2-4 ft. high ; leaves lanceo- 

 late to oblong, the lower pinnately lobed or pinnatifid, short-petioled, 

 the upper nearly entire and sessile ; pedicels stout ; calyx lo))es entire ; 

 corolla 1^ in. long, smooth : capsule pubescent, twice the length of 

 the calyx. June-September. In dry woods. 



