318 LABIAT.E. (mint family.) 



4. C. dentata, n. sp Densely tomentosc ; stem diffusely branched ; leaves 

 small, obovatc or wedge-shaped, rounded and 2 - 4-toothed at the apex, nearly 

 sessile ; flowers solitary or 3 together ; calyx smooth, the upper lip emarginate 

 or obscurely 3-tOOthed, much shorter than the lower ; upper stamens abbreviated, 

 sterile. — Sand ridges near Aspalaga, Florida. Sept. and Oct. — Stem 2° high. 

 Leaves very numerous, £' long. 



5. C. canescens, Torr. & Gray. Hoary-tomentose ; stem diffusely 

 branched ; leaves linear, entire, obtuse, with the margins revolute ; cymes very 

 numerous, 1 - 3-flowered ; calyx smooth or hairy, the upper lip obtusely 

 3-toothed ; corolla hairy, white or purple, dotted in the throat ; anthers hairy. 



— Dry sands along the west coast of Florida, flowering throughout the year. — 

 Stem 1° -2° high. Leaves £'- $' long. Corolla £' long. 



11. DICERANDRA, Benth. 



Calyx tubular, 13-nerved, 2-lipped ; the upper lip entire or minutely 3-toothcd, 

 the lower scarcely longer, 2-cleft, the throat bearded. Corolla 2-lipped ; the 

 upper lip erect, the lower spreading, 3-cleft. Stamens 4, didynamous, spreading, 

 exserted : anther-cells distinct, diverging, awned at the apex Nutlets smooth. 



— Smooth annuals, with narrow leaves. Cymes loose, spreading, several-flow- 

 ered, forming a leafy terminal raceme. Flowers purple. 



1. D. linearifolia, Benth. Stem mostly branching, erect ; leaves linear 

 or lanceolate, serrate or entire, obtuse, sessile ; cymes peduncled, 3- 9-flowered ; 

 calyx purple, declined in fruit. (Ceranthera linearifolia, Ell.) — Dry sandy pine 

 ban-ens, Florida, Georgia, and westward. Oct and Nov. — Stem 1° high. 

 Leaves 1' long. Flowers very numerous, purple, dotted. Style hairy. 



2. D. densiflora, Benth. Stem loosely branched ; leaves oblong-lanceo- 

 late, or the uppermost linear; cymes sessile, 5- 10-flowered. — Fast Florida, 

 Dentham. — Cymes more compact, calyx smaller, and the awns of the anthers 

 shorter, than in No. 1. 



12. MELISSA, L. Balm. 



Calyx tubular-bell-shapcd, 13-nerved, 2-lippcd ; the upper lip flattish, 3-toothed, 

 the lower 2-cleft, beardless in the throat. Corolla-tube rccurved-aseending, 

 2-lipped ; upper lip erect, the lower 3-cleft, spreading. Stamens 4, curved 

 and comment under the upper lip : anther-cells at length diverging. Nutlets 

 smooth. —Herbs, with few-flowered 1-sidcd axillary cymes, and white or yellow 

 flowers. 



1. M. officinalis, L. Stem erect, branching ; leaves ovate, crenate, trun- 

 cat,- or cordate at the base; cymes 3 - 6-flowcrcd, with ovate bracts.— North 

 Carolina, and northward. Introduced. 



13. SALVIA, L. Sage. 



Calyx tubular or bell-flhaped, L' lipped ; the upper lip entire or 3-toothcd, the 

 lower 2-deft, beardless in the throat. Corolla 2-lipped ; the upper lip entire or 



