Obdek 89.— labiate. 545 



Btam. 4. — On ILookout Mt. Teun. 1 to Middle Ga. Plant 1 to 2f high, Bimple. 

 Lvs. large (6 to 8' long), petioles about 2'. Rao. 5 to 10'. Pis. twice larger (7 

 to 9" long) than in N03. 2 and 3. Stam. and sty. very long, spreading. Lower 

 lip strongly fringed. May, Jn. 

 5 C. anisata Ph. Viscid-pubescent; lvs. broad-ovate, acute, subserraie, at base 

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

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

 3 upper longer; stam. 4. — Middle Ga. (Peay), Ala., Pla. ? Plant 1 to 2f higli. 

 Lvs. 5 to 7' by 3 to 5', very rugous, often short acuminate, petioles 1' to 15". 

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



12. HYSSO^PUS, L. Hyssop. (Hebrew czc6; Arabic M2«q/"; English 

 hyssop.) Calyx tubular, 16-striate, equally 5-tootlied, upper lip of the 

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

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

 H. oi&cinalis L. Lvs. linear-lanceolate, acute, entire, sessile ; cal. teeth erect ; 

 fls. in raeemous, secund verticils ; middle division of the corolla 2-lobed, entbe. 

 — 2f Cultivated for its reputed medicinal properties. A handsome plant, grow- 

 ing in tufts 2f high, with delicate foliage and bright blue flowers. Jl. if S. Bur. 



13. PYCKAN'THEMUffl, Mx. Basil. (Gr. TrvKvdf, dense, avdog; 

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

 striatc, 5-toothed, teeth equal or subbilabiato, 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. — 

 7i Erect, rigid herbs, all N. American. Verticils dense, many-flow- 

 ered. 



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

 § Caly.K fiubequally cleft, in voundish, dense heads, (b) 



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



a Teeth of tlie calyx produced into bearded awns, shorter than corolla Nos, 2— 4 



b Calyx teeth and bracts with naked awns equaling the corolla Nos. 5, 6 



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

 — Heads corymbed. Leaves sessile ...Nos. 10 — 12 

 — 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. — A'la. 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. Pis. as in all the 

 species, small, reddish. 



2 P. Tullia Benth. Lvs. ovate or oblong, acute or acuminate, subserrate, and 

 with the stem viltous-puhescent, the floral whitened, fls. sepa/raie, at length in little 

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

 ing the tube. — Mts. of E. Tenn., X. Car. to Ga. Lvs. as in No. 1, varying from 

 ovate to lanceolate. Lower lip of calyx somewhat shorter. 



3 P. incanura Mx. Wild Basil. Lvs. oblong-ovate, acute, subserrate, rounded 

 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., N. Mid., W. States. St. 2 to tf 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. Lvs. oblong-lanceolate, acute at each 

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

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

 nodes ; bracts ciliate ; cal. teeth subulate, often tufl^ed with hairs at apex. — Dry 

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

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

 Sept. 



5 P. aristatum Mx. Los. ovate-oblong, acute, subserrate, rounded at base, on short 

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



35 



