LABIATJE. 487 



style immersed. Fruit of 4 nutlets ; seeds mostly exalbumiiious. — Herbs or shrubs ; stem 

 mostly tetragonal ; leaves opposite, entipulaie ; flowers in cymose clusters (whorls), rarely 

 solitary : clusters axillary, racemose, or spi/cate. 



Volatile- oils ai'e general, and largely used as aromatica, e.g. those of Ocimum, Eyptis, 

 and Salvia : the latter is astringent too. 



1. OCIMUM, L. 



Calyx very uneciual, at length deflexed : upper tooth large, deourrent. Upper corolla-lip 

 4-fid, inferior entire, usually flat. Stamens didynamous, deflexed. — Whorls 6(-W)-jlowered, 

 racemose. 



1*. O. Basilicum, £. Annual; leaves eUiplical or elliptical-lanceolate, glabrescent ; 

 raceme interr'u|)ted ; calyx ciliate, about half as long as the corolla: superior tooth 

 roundish, shortly deourrent, 2 lateral ovate, pointed, 3 inferior subulate ; upper filaments 

 hearing a tooth at their base. — Besc. Fl. 4. t. 301. — Hab. Naturalized in Jamaica, S. 

 Vincent I, Guild. ; [introduced from trop. Asia ! and Africa !]. 



3. O. micranthum, W. Annual; leaves ovate, pointed, serrulate, contracted into 

 the petiole, glabrescent ; calyx enlarged around the nutlets : upper tooth ovate, blunt, I 

 concave, deourrent to the base of the tube, 4 inferior subulate ; filaments naked, included. 

 — 0. frutescens, Sieb. Mart. 154. — Calyx at length 4'" long. — Hab. Jamaica!, Sist., 

 Wils.; Antigua!, Wullschl., S. Lucia !, hb. Senth.; [Cuba! and Mexico to Brazil !]. 



a*. COLEUS, Lour. 



Calyx unequal : upper tooth larger. Corolla-tube deflexed : upper lip 4(-3)-crenate, 

 inferior entire, elongated, concave. Stamens of Ocimum, but monadelphous : tube narrow, 

 including the style. — Whorls d^many-fiowered, racemose. 



S*. C. amboiuicus, Lour. SuSruticose, subtomentose or pilose ; leaves deltoid, 

 crenate, petioled ; raceme elongated, interrupted : whorls many-10-flowered ; calyx tomen- 

 tose, naked at the throat : upper tooth ovate-oblong, blunt, not deourrent, 4 inferior shorter, 

 linear-setaceous ;■ 'corolla-tube infracted at the middle, twice as long as the calyx, as long as 

 the inferior lip. — Bot. Reg. if. 1530 : in our form the stamens are longer-exserted. — C. 

 aromaticus, Benth. — Fragrant ; branches somewhat fleshy ; raceme 6"-] 3" long. — Hab. 

 Naturalized in Antigua !, Wullschl. ; [introduced from the East Indies] . 



3. MARSYPIANTHES, Mart. 



Calyx eqnaJ, 5-fid. Inferior corolla-lobe deflexed, 4 superior subequal. Stamens 4, 

 deflexed. Nutlets cymbiform, appendiculate by an involute, dentate wing. — Herbs ; whorls 

 capitate, (rarely f em-flowered), axillary. 



4. ni. hyptoides, Mart. Annual; leaves ovate or ovate-lanceolate, serrate; heads 

 many-flowered, usually peduncled. — Ann. Mus. 7. t. 27./. 4; <. 31. /. 1. — Hyptis cha- 

 maedrys, W. H. pseudochamsedrys, Poit. — Heads 4"'-6"' diam. ; corolla included, blue or 

 purple. — Hab. S. Vincent t, Anders. ; Trinidad !, Sieb., Or., a weer^ ; [Portorico ! and 

 Mexico ! to Brazil!]. 



4. HYPTIS, Jacq. 



Calyx 5-aentate-5-fid. Corolla 2-lipped : inferior lobe deflexed. Stamens 4, deflexed. 

 Nutlets devoid of a concave margin. — The West Indian species herbaceous. 



* Flowers sessile in spicate whorls. 



■ 5. H. spicigera, Lam. Stout ; leaves petioled, ovate-lanceolate, acuminate, serrate, 

 floral linear ; spi/ces cylindrical, terminal ; calyx equal : teeth subulate, shorter than the 

 tahe.^Sl. if. 108. /. 1. Desc. Fl. 8. t. 581.— 7'-3' high; spikes l"-3" long; flowers 

 small, white. — Hab. Jamaica, along ditches near Spanish town (SI.) ; [West Indies to 

 Brazil ! ; trop. Africa ! and Asia]. 



