135 
PERILLA 
¢Perilla frutescens (L.) Britton, beefsteak plant, p. 1308 
var. crispa (Benth.) W. Deane 
‘ n 
PHYSOSTEGIA, false dragonhead 
Physostegia angustifolia Fern., false dragonhead, p. 1281 
P. intermedia (Nutt.) Engelm. & A. Gray, false dragonhead, 
. 1282 
P. virginiana (L.) Benth., false dragonhead, obedient 
plant, Virginia lionsheart, p. 1281 
ssp. praemorsa (Shinn.) Cantino [S: P. virginiana f. candida 
Benke] (Cantino, 1982) 
ssp. virginiana [S: P. formosior oe Pr. anita var. 
speciosa (Sweet) A. Gray, var. virginiana; M: P. 
speciosa (Sweet) Sweet] ‘(Cabs 1982) 
PRUNELLA, self-heal, heal-all 
Prunella vulgaris L., self-heal, heal-all, p. 1279 
var. lanceolata (W. P. C. Barton) Fern. [M: P. vulgaris var. 
elongata Benth.] (Fernald, 1913) 
f. candida Fern. 
f. iodocalyx Fern. 
f. lanceolata 
¢var. vulgaris 
f. vulgaris 
PYCNANTHEMUM, mountain mint 
Pycnanthemum albescens Torrey & A. Gray, white mountain mint, 
. 1300 
P. muticum (Michaux) Pers., p. 1299 
P. pilosum Nutt., hairy mountain mint, p. 1299 
P. tenuifolium Schrader, slender mountain mint, p. 1299 
S: Steyermark G: Great Plains Flora M: Mohlenbrock 
