Obdbb 89.— LABIATjE. 645 



Btatn. 4. — On Lookout Mt. Tenn. 1 to Middle Ga, Plant 1 to 2f high, simple. 

 Lva large (6 to 8' long), petioles about 2'. Rac. 5 to 10'. FK twice larger (7 

 to 9" long) tlian in Nos. 2 and 3. Stam. and sty. very long, spreading. Lower 

 lip strongly fringed. May, Jn. 

 5 C. ania^ta Ph. Viscid-pubescent; Ivs. lyroad-ovaie, acute, subserrate, at base 

 cordate or truncate, scabrous above, the floral similar, very small, sessile ; pan- 

 icle dense-flowered ; fls. opposite ; cai. teeth ovate, obtuse, with a short mucro, ilie 

 3 upper longer; stam. 4. — Middle Ga. (Feay), Ala., Fla. ? Plant 1 to 2f high. 

 Lva 5 to T by 3 to 5', very rugous, often short acuminate, petioles 1' to 16" 

 Pis. about as large as in No. 1. Jl. — Sept. 



12. HYSSO'PUS, L. Hyssop. (Hebrew ezch ; Arabic uzzof ; English 

 hyssop) Calyx tubular, 15-striate, equally 5-toothed, upper lip of the 

 corolla erect, flat, emarginatc, lower lip 3-parted, the middle segment 

 largest, tube about as long as the calyx ; stamens 5, exserted, diverging. 

 H. ofiicindlis L. Lvs. linear-lanceolate, acute, entire, sessile ; cal. tSeth erect ; 

 fls. in racemous, secund verticils; middle division of the corolla 2-lobed, entire. 

 — y Cultivated for its reputed medicinal properties. A handsome plant, grow- 

 ing in tufts 2f high, with delicate fohage and bright blue flowers. Jl. :j; S. Eur, 



13. PYCNAN'THEMUffl, Mx. Basil. (Gr. -nvKvdq, dense, avQo^; 

 alluding to the dense, capitate inflorescence.) Calyx tubular, 10 to 13- 

 striate, 5-toothed, teeth equal or subbilabiate, throat naked -within ; up- 

 per lip of corolla nearly entire, lower lip trifid, middle lobe longest, all 

 ovate, obtuse, stamens 4, distant, subequal, anthers with parallel cells. — 

 1i Erect, rigid herbs, all N. American. Verticils dense, many-flow- 

 ered. 



S Calyx subbilabiate, in flattish, often loose cymes. Leaves petiolate. (a) 

 § Calyx subequally cleft, in roundish, dense beads, (b) 



a Teeth of the calyx ovate, acute, awnless No. 1 



a Teeth of the calyx produced into bearded awns, shorter than corolla Nos. 2--4 



b Calyx teeth and bracts with naked awns equaling the corolla Nos. 5, G 



b Calyx shorter than the corolla. — Heads panicled. Leaves subpetiolate.. .Nos. 7 — 9 

 — Heads corymbed. Leaves sessile ...Nos. 10 — 13 

 — Head solitary, large No. 13 



1 P. albescens Torr. & Gr. Lvs. ovate or lance-ovate, subserrate, acute at each end, 

 subglabrous, whitened beneath, the upper whitened both sides, all petiolate ; fls. 

 separate, at length in little secund racemes; cal. teeth much shorter than its 

 tube. — Ala. to La. St. 2 to 3f high, much branched. Lvs. 18'' to 3' long, often 

 puberulent beneath. Cymes many, in fruit 1' to 18" broad. Fls. as in all the 

 species, smEill, reddish. 



2 P. Tilllia Beilth. Los. ovate or oblong, acute or acuminata, subserrate, and 

 with the stem villous-pubescent, the floral whitened, fls. separate, at length in liiils 

 secund simple racemes ; cal. teeth ending in subulate, bearded awns, about "equal- 

 ing the tube. — Mts. of B. Tenn., K Car. to Ga> Lvs. as in No. 1, varying from 

 ovate to lanceolate. Lower lip of calyx somewhat shorter. 



3 P. incinum Mx. 'Wn.D Basil. Lvs. oblong-ovate, acute, subserrate, romuled 

 at the base, petiolate, hoary-tomentous beneath, the floral whitened both sides ; 

 cymes dilated, not in racemes ; cal. teeth subequal, subulate, aristate, bearded at 

 apex. — Rocky woods and barrens. Can., K Mid., "W. States. St. 2 to 4f high, 

 covered with soft, whitish down like the rest of the plant. Cymes all canescent, 

 1' or less broad. Cor. pale red, dotted with purple. Aug. (P. Loomisii, Nutt.) 



4 P. clinopodioides Torr. & Gr. Lva. oblong-lanceolate, acute at each 

 end, subserrate, smoothed above, pubescent beneath ; sts. and branches villous- 

 pubescent ; cymes contracted and almost capitate, terminal and sessile at the upper 

 nodes ; bracts oiliate ; cal teeth subulate, often tufted with hairs at apex.— Dry 

 soils, N. T., N. J., to Ind. Plant corymbously branched, 2 to 3f high, scarcely 

 canescent^ never whitened, Lva 2 to 3' long. Cymes less than 6" broad. Aug., 

 Sept. 



5 P. aristatum Mx. Lvs, ovate-oblong, acute, sviserraie, rounded at base, on short 

 petioles, and with the stem glabrous or minutely caneseent-downy ; bracts rigid, 



35 



