gl 
eee 5 Tillia Pycnanthemoides. 
Folia subdistantia, opposita, petiolata ; petiolis wnatgiaiieaarl ci- 
liatis ; lamina ovata, acuminata, basi ayenwate, remote dentata, supra 
canescens, infra glaucescens. 
orescentia fasciculus spicarum secundarum axillaris, termin- 
alisque 5 spice (externa facie) primo uniflore, postea producte, et 
serie continuata, flores novos alternos confertos unibracteatos, produ- 
centes ad extremum pedunculorum ; bracteis subulatis, longitudine 
calycis absque appendiculis dentium. 
yx monosepalus, tubulosus, subventricosus, striatus, bilabiatus; 
agto superiore tridentato, inferiore bidentato, paulo breviore ; denti- 
bus erectis, subulatis (vel sublanceolatis,) subequalibus, appendica- 
latis ; appendiculis penicilliformibus. 
Corolla monopetala ringens; tubo longitudine et forma calycis} 
labio superiore ovato-oblongiusculo, integerrimo, inferiore tripartito 5 
lacinia intermedia longiore, pauloque latiore, margine subundulata. 
tamina quatuor, exserta, labio superiore paulo lana duo 
breviora ; filamentis filiformibus, antheris subglobosis. 
aria (externa facie) quatuor, in fundo calycis. 
Caryopsides? (non vise.) 
CHARACTER GENERICUS ESSENTIALIS. 
Perianthium bilabiatum ; labio superiore tridentato, inferiore bi- 
dentato ; dentibus njocaditdaits corolla bilabiata; labio superiore 
integerrimo, inferiore tripartito ; lacinia media majore. 
This plant was found the 22d of October, 1830, when I was de- 
scending the Paint Mountain in Eastern Tennessee. It apparently 
commences flowering in August. When discovered, there were 
from two to four flowers upon each spike, which were of a delicate 
pale-rose color spotted with purple. 
It is almost superfluous to state, after the full -deseription which 
has been given of our | lant, that it belongs to the natural order La- 
ae which is che rized by didynamous stamens, four caryop- 
naked seeds, a single style, and an irregular 
Pram vie foregoing description, it will be equally evident that this 
plant belongs to the Linnean class, Didynamia, and the order, 
Gymnospermia, and to that section of the genera which is characteri- 
zed by a calyx bilabiatus. The characters of the several genera © 
this section (according to Sprengel’s edition of the species Planta- 
rum, which is perhaps the latest,) are as follow. 
a, 
