OBDEB 89. LABIATES. 545 



Btam. 4. On Lookout Mt. Term. I to Middle Ga. Plant 1 to 2f high, simple. 

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

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

 lip strongly fringed. May, Jn. 



5 C. anisata Ph. Viscid-pubescent; Ivs. broad-ovate, acute, subserrate, at base 

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

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

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

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

 Fls. about as largo as in No. 1. JL Sept. 



12. HYSSO V PUS, L. HYSSOP. (Hebrew czcb ; Arabic uzzof ; English 

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

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

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

 H. officinalis L. Lvs. linear-lanceolate, acute, entire, sessile ; cal. teeth erect ; 

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

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

 ing in tufts 21' high, with delicate foliage and bright bluo flowers. Jl. \ S. Eur. 

 13. PYCNAN'THEMUM, MX. BASIL. (Gr. TTV/CVO?, dense, avdof, 

 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, subcqual, anthers with parallel cells. 

 71 Erect, rigid herbs, all N. American. Verticils dense, many-ilow- 

 crcd. 



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

 *j Calyx subequnlly cleft, in roundish, dense heads, (b) 



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



a Teeth of the calyx iiroduced into bearded awns, shorter than corolla ^os. 24 



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



b Calyx shorter than the corolla. Heads panicleJ. Leaves subputiulate.. .Nos. 7 9 

 Heads coryinbed. Leaves sessile ...Nos. 10 12 

 Head solitary, lar^'c N o. IS 



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

 subglabrous, whitened boneath, the upper whitened both sides, all petiolatc; 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 tho 

 species, small, reddish. 



2 P. Tiillia Benth. Lrs. ovate or oblong, acute or acuminate, subserrate, and 

 with the stem villous-pubescent, the floral whitened, fls. separate, ai length in littl- 

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

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

 ovate to lanceolate. Lower lip of calyx somewhat shorter. 



3 P. incanum MX. WILD BASIL. Lvs. oblong-ovate, acute, subserrato, rounded 

 at the base, petiolate, hoary-tomentous beneath, tho 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 4f high, 

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

 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, terminal and sessile at the upper 

 nodes ; bracts ciliate ; caL teetli subulate, often tufted with hairs at apex. Dry 

 soils, N. Y., N. J., to Ind. Plant corymbously branched, 2 to 3f hi.<;i>, scarcely 

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

 Sept 



5 P. aristatum MX. Lrs. ovate-oblong, acute, subserrate, rounded at base, on short 

 petioles, and with tho stem glabrous or minutely canescent-downy ; bracts rigid, 



35 



