318 LABIATE. (mint FAMILY.) 



4. C. dentata, n. sp Densely tomcntose ; stem difl'iiscly hranelied ; leaves 

 small, o!)ovatc or wcilge-sliapcil, rounded and 2 - 4-tootlied at tlie apex, nearly 

 sessile; Howers solitary or 3 together; ealyx sinoolli, the upper li|) emarginato 

 or obseurely 3-toolhed, nnieh shorter than tlie lower ; upper stamens ablireviated. 

 sterile. — Sand ridges near Aspalaga, Florida. Sept. and Oct. — JSteni 2° Liyh. 

 Leaves very numerous, i' long. 



5. C. canescens, Torr. & Gray. Iloary-tomcntose ; stem diffusely 

 branched ; leaves linear, entire, obtuse, with tlie margins rcvolule ; cymes very 

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

 3-toothed ; corolla iiairy, white or purple, dotted in the thioat; ambers hair)'. 



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

 Stem 10-2° high. Leaves y - %' long. Corolla J ' long. 



11. DICERANDRA, Bcnth. 



Calyx tubular, 13-nervcd, 2-lipped ; the upper lip entire or minutely 3-toothed, 

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

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

 exscrted : anther-cells distinct, diverging, awned at tiic 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 ))eduncled, 3-9-flowered ; 

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

 barrens, 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 u])perinost linear; cymes sessile' .5 - 10-flowered. — East Florida, 

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

 shorter, than in Ko. 1. 



12. MELISSA, L. Bai.m. 



Calyx tul.nlar-bell-shaped, 13-nervcd, 2-lippcd ; the upper lip flattish, 3-toothed, 

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

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

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

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

 . flowers. 



1. M. officinalis, L. Stem erect, branching ; leaves ovate, crennte, tnm- 

 cntc or cordate at the base; cj-mes 3 - 6-flowcred, with ovate bracts. — North 

 Carolina, and northward. Introduced. 



13. SALVIA, L. Sack. 



Cnlyx tubular or bcll-sbapcd, 2-lipped ; the upper lip entire or 3-loothpd, tho 

 lower 2-cleft, beardless in the throat. Corolla 2-li])ped ; the U|)per lij) entire or 



