420 XCIIIl. LABIAT A, ‘TuyMts. 
3. P. prnésum. Nutt. Hairy Pycnanthemwm. ; 
St. and lvs. beneath pilose; s¢. subsimple; ws. lanceolate, nearly entire, 
sessile; fis. in large, terminal, sessile heads; bracts lanceolate, and, with the 
calyx, canescently villous and awnless; cor. pubescent; sta. exserted.—2. Low 
grounds, Ill. Mead, to Tenn. Nuttall. I am unacquainted with this species, 
but it is probably distinct, closely allied to the last. ‘Stem a little branched at 
the summit. Bracts shorter than the calyx, acute butnot awned. Calyx teeth 
minute. Corolla white, without spots.” 
4. P. muticum. (Brachystemum muticum. Michx.) Awnless Pycnanthe- 
mum.—iSt. pubescent, paniculate-branching above; lvs. ovate-lanceolate, 
subdentate, sessile, nearly smooth; ids. terminal; bracts ovate-lanceolate, acu- 
minate, awnless; sta. included.—2 Found in woods and dry hills, Penn. toGa. 
and W. States. Stem 2f high, square, with larger, opposite leaves and white 
flowers. Leaves large, the width a third of the length, entire or denticulate. 
Heads mostly terminal, and with the bracts and upper leaves, whitish pubes- 
cent. Corolla tinged with purple, with spots of a deeper hue, Aug. 
5. P. paNceoLatum. Pursh. (P. verticillatum. Pers. Brachystemum 
Virginicum. Mz.?)—<St. straight, corymbosely branched, pubescent on 
the angles ; /vs. subsessile, ovate-lanceolate and linear-lanceolate, feather-vein- 
ed, entire; verticils sessile, fasciculate-corymbed ; bracts linear-lanceolate, acu- 
minate ; sta. exserted—2| This species much resembles the next, but is distinct 
in several important characters. Grows in dry woods and hills, abundant 
W.and Mid. States. Stem 2 or more feet high, square, with obtuse angles, 
somewhat scabrous. Branches corymbed, downy above. Leaves varying in 
width from one-sixth to one-half of their length. Flowers collected in dense, 
canescentheads. Corolla purplish-white with darker spots. Aug. , 
6. P. uryirouium. Pursh. Flaz-leaved Pycnanthemum. 
St. straight, smooth; branches trichotomous, fastigiate; dvs. linear, very 
entire, 3-veined, smooth; Ads. terminal, dense, in a fasciculate corymb.—2| An 
erect plant with fastigiate branches, 13f high, growing in exsiccated swamps, 
Penn., N. Y. to the Miss. and S. States. Stem often purplish, slightly 4-an- 
gled, corymbose at the summit. Leaves very narrow, entire, smooth and punc- 
tate, with fascicles of smaller ones in the axils. Flowers small, white, in nu- 
merous, small, roundish heads, mostly terminal, and with imbricated bracts. 
Aug.—I have generally found this species nearly destitute of the mint-like fla- 
vor of the foregoing. The statement in a former edition was made on the 
authority of others. 
12. ORIGANUM. 
Gr. opos, amountain, and yavos, joy. - 
Flowers collected into dense clusters, imbricated with bracts ; up- 
per lip of the corolla erect, flat, emarginate, lower lip with 3 nearly 
equal segments. . 
1. O. vuLGire. Wild Marjoram. 
Lws. ovate, entire, hirsute, petiolate; spies roundish, panicled, fascicu- 
late, smooth, erect; bracts ovate, longer than the calyx, colored.—2 grows in 
fields and thickets. Stem 12—18’ high, purple, leafy, branching above. Leaves 
a very little serrate, opposite, hairy, sprinkled with resinous dots, paler beneath. 
Petioles hairy one-fourth as long as the leaves. Bracts tinged with purple. 
Flowers purplish-white. The plant has a highly aromatic taste. Jl. Aug. ¢ 
2. O. Masorana. Ph. (Majorana hortensis. Maench.) Sweet Marjoram.— 
Lvs. oval or obovate, obtuse, entire, petiolate, hoary-pubescent; spikes roundish, 
compact, pedunculate, clustered at the end of the branches; bracts roundish.— 
2, Native of Portugal, cultivated in gardens. It has a pleasant aromatic fla- 
vor, and is employed in various ways as a seasoning. Plant soft-downy, a foot 
high. Flowers pink-colored. Jl. Aug. + 
13. THY MTS. 
: Gr. Svpos, courage ; on account of its invigorating smell. — pen x 
Flowers capitate or verticillate; calyx subcampanulate, bilabiate, 
