LABIATJE. CVI. AMETHYSTEA. CVII. TRICHOSTEMA. CVIII. TECCRICM. 



S61 



China, Sir G. Staunton. Sims, hot. tnag. t. 2448. Hall, in 

 cornm. goett. 1751. t. 10. act. ups. 1745. p. 51. f. 1. Herb 

 erect, branched, glabrous, often bluish. Leaves petiolate, 3-5- 

 parted ; segments oblong-lanceolate, deeply toothed ; floral 

 leaves smaller : upper ones minute. Cymes peduncled, loose, 

 racemosely panicled. Bracteas minute. Calyxes erect, bluish, 

 quite glabrous, with lanceolate acute teeth. Corolla blue, 

 scarcely exceeding the calyx. 



-B/ue-flowered Amethystea. Fl. June, July. Clt. 1759. PI. 

 1 to 1| foot. 



Cult. This being a hardy annual, the seeds of it should be 

 sown in the open ground, where the plants are intended to re- 

 main. 



CVII. TRICHOSTE'MA (from 0pi4 rp X oc, thrix trichos, 

 a hair ; and OTJJ/JWV, stemon, a stamen ; in reference to the capil- 

 lary filaments.) Lin. gen. no. 733. Schreb. gen. no. 988. 

 IJuss. gen. no. 116. Benth. lab. p. 658. 

 LIK. S\ST. Didynamia, Gymnospermia. Calyx sometimes 

 1 campanulate, nearly equal, deeply 5-cleft, sometimes depressedly 

 ^S campanulate. very oblique, with the 3 upper teeth (from the 

 twisting of the pedicel inferior) elongated and connate ; and the 

 2 lower ones (superior) very short. Corolla with a slender, 

 ^^ usually exserted tube, v/hich is exannulate inside, and a some- 

 what equally 5-cleft limb ; segments oblong, declinate : lower 

 ones scarcely larger. Stamens 4, didynamous : lower ones the 

 longest, and much exserted ; filaments sometimes monadel- 

 phous ; anthers about 2-celled : cells divaricate or diverging. 

 Style bifid at apex ; lobes subulate ; stigmas minute. Herbs, 

 with quite entire leaves, and axillary or racemose inflorescence. 

 Very nearly allied in character to Teucrtum, but differs in 

 habit. Isdnthui ought probably to be placed near this genus. 



SECT. I. STREPTOPODIUM (from orptjrroc, streptos, twisted ; 

 and rove TTOCOC, pous podos, a foot; in allusion to the pedicels 

 being twisttd.) Benth. lab. p. 658. Calyx very oblique, re- 

 versed from the twisted pedicel. Pedicels solitary, opposite, 

 1 -flowered. 



1 T. LIXEA'RE (Nutt. gen. amer. 2. p. 39.) glabrous ; leaves 

 linear; flowers reversed. G- H. Native of North America, 

 from Philadelphia and New Jersey to Louisiana. T. dichoto- 

 mum, Roth, nov. pi. spec. p. 280. T. brachiatum, Lam. ill. 3. 

 t. 515. but not of Lin. Dill. elth. t. 285. f. 369.? Hardly 

 differing from T. dichotomum, unless in being constantly gla- 

 brous, taller in stature, larger corollas, &c. Flowers purple or 

 blue. 



Z-inear-leaveJ Trichostema. Fl. June, Aug. Clt. 1759. 

 PI. 1 foot. 



2 T. DICHO'TOMVM (Lin. spec. p. 834.) glabrous or pubes- 

 cent ; leaves petiolate, oblong; flowers reversed. Q. H. 

 Native of North America, from Canada to Carolina. T. pilo- 

 sum, Roth, nov. pi. spec. p. 280. Herb paniculately branched 

 at top. Lower leaves about an inch long : upper floral ones 

 bractea-formed, shorter than the pedicels. Flowers secund. 

 Corollas small, blue or purple. 



.Dt'cAotomotw-branched Trichostema. Fl. June, Au<r. Clt 

 1759. PI. 1 to 1 foot. 



SECT. II. ORTHOPODIUM (from opfloc, orlkos, straight; and 

 rove TTOCOC, pou* podos, a foot ; in reference to the straight pedi- 

 cels.) Benth. lab. p. 659. Calyx straight, equal. Cymes 

 many- flowered. 



3 F. OBLOXGUM (Benth. lab. p. 659.) pubescent or villous ; 



leaves oblong, narrowed at the base ; cymes axillary ; calyx 

 about 5-cleft ; tube of corolla inclosed. O- H. Native of 

 North-west America, in grassy places about Fort Vancouver, 

 Douglas. Leaves green, distant, about an inch long, obtuse. 

 Whorls remote. Corolla small, blue or purple. ? Genitals ex- 

 serted, free. 



O&fong-leaved Trichostema. PI. ^ to 1 foot. 



4 T. LAKCEOLA'TCM (Benth. lab. p. 659.) villous ; leaves lan- 

 ceolate ; cymes axillary ; calyx equally 5-cleft ; tube of corolla 

 exserted. 0. ? H. Native of North-west America, near Fort 

 Vancouver, in dry places at the river Muhnomah ; and of New 

 California. Herb branched, hard at the base, and probably pe- 

 rennial. Leaves sessile, an inch long, stem-clasping at the base. 

 Whorls secund, distant. Corollas pubescent. Genitals exserted. 

 Filaments connate at the base. 



Lartceolate-leaved Trichostema. PI. \ to f foot. 



5 T. LANA'TCM (Benth. lab. p. 659.) leaves linear, with revo- 

 lute edges ; flowers racemose, woolly ; calyx about equally 5- 

 cleft; tube of corolla much exserted. Q. ? H. Native of 

 California, Douglas. Perennial or shrubby. ? Branches clothed 

 with hoary tomemum. Leaves numerous, fasciculated, form of 

 those of rosemary, 1 -2 inches long, glabrous above, and tomen- 

 tose beneath. Upper floral leaves bractea-formed. Whorls 

 sub-secund, rather loose, 10-20-flowered. Corolla woolly. 

 Genitals exserted. Filaments free. 



Woolly Trichostema. PI. H foot. 



Cult. The seeds of these annual plants should be sown in 

 autumn, in pots filled with light earth ; and in winter the pots 

 should be placed under a frame, to shelter them from frosts, 

 but expose them at all times to the open air when the weather 

 is mild. In the spring transplant them on to a bed of light 

 earth, shading them from the sun until they have taken root. 



CVIII. TEU'CRIUM (so named from Teucer, son of Sca- 

 niander, and father-in-law of Dardanus, king of Troy.) Lin. 

 gen. no. 706. Schreb. gen. no. 960. Juss. gen. p. 112. 

 Benth. lab. p. 660. ChamaeMrys, Scorodonia, Scordium. and 

 Polium, Tourn. inst. t. 93. 97. and 98. and Moench. Leucos- 

 ceptrum, Smith. 



Lix. SYST. Didynamia, Gymnospermia. Calyx tubular or 

 campanulate, rarely inflated, 5-toothed ; teeth equal, or the 

 superior one is broadest. Corolla with a short tube, which is 

 exannulate inside ; the 4 upper segments of the limb nearly 

 equal, or the uppermost one is broader or longer, sometimes ob- 

 long and declinate, and sometimes very short, and erectish ; 

 lower segment very large, roundish or oblong, usually concave. 

 Stamens 4, exserted between the upper segments, didynamous : 

 the lower ones the longest ; cells of anthers confluent. Style 

 about equally bifid at apex ; stigmas minute. Achenia more or 

 less wrinkled. Herbs and shrubs, variable in habit and inflo- 

 rescence. 



SECT. I. LEUCOSCE'PTRUM (from \tvmf, leucos, white ; and 

 aKnxTpov, sceptron, a sceptre ; in allusion to the Jon? verticillate 

 spikes of white flowers.) Benth. lab. p. 663. Leucosceptrum, 

 Smith, exot. bot. p. 113. Whorls many-flowered, densely spi- 

 cate. Calyx turbinate, incurved, with nearly equal teeth. Co- 

 rolla incurved, reflexed ; the upper segments very short, broad, 

 truncate, erect. An Indian shrub, clothed with hoary to- 

 mentum. 



1 T. MACROSTA'CHYUM (Wall. mss. ex Benth. lab. p. 663.) 

 shrubby ; branches hoary ; leaves oblong, clothed with dense 

 white tomentum beneath ; whorls many-flowered, densely spi- 

 cate ; calyx almost equally toothed ; upper segments of corolla 



