YZ Prunella L. Self-Heal. 
Herbs with creeping slender rootstocks and erect stems with entire 
leaves. Flowers in dense terminal cylindrical spikes, subtended 
orbicular bracts. Calyx strongly 2-lipped, the upper lip truncate, 5-toothed, 
the lower bifid. Corolla blue or purple, strongly 2-lipped, the upper arch- 
ing and galeate, the lower 3-lobed. Stamens 4. Nutlets smooth, mucilaginous 
when wetted. 4 
ay we awit ata. tun ‘ 
l. Pe vulgaris L. Perennial herbs with erect or ascending stems 
15-45 cm. tall, thinly pubescent i . 
leavep; leaf-blades 2-8 cm. long, narrowly ovate or oblong, obtuse or rounded 
at the apex, attenuate atthe base to slender petioles 1-4 cms tong >: emttres>— 
thinly pubescent; flowene—in-e-dense—oyLindriced—-purplici>spike 2-4 cm. long, 
the bracts subrotund, subequal to the calyces, abruptly acuminate, membranous, ; 
veiny, the margins ciliate; calyx 10-12 mn. long, hirsute beneath, the upper 
lip 5-7 ma. long, 3.5-5 mm. wide, with 2 narrow decurrent wings, the teeth : 
broad and truncate but mucronate, the middle one twice the width of the ! 
laterals, the lower lip 6 mm. long, cleft nearly to the base, the lobes lanceo- 4 
late, acute; corolla 12-16 mm. long, the tube sub- 
equal to the calyx, dilated above, the upper lip TE beows-y> 
5e5=6 mme long, the middle lobe of the paler lower lip twice the size of the 
laterals, the margins fringed; nutlets brown, 2 mm. long. 
ep oes ee 
froist) 
Frequent infsrassy places along roads, at the borders of woods and in 
meadows. 
