816 



LABIATE. LXXIII. PHYSOSTEGIA. LXXIV. MACBRIDEA. LXXV. SYNANDEA. LXXVI. LAMIUM. 



p. 116. Herb usually glabrous, rarely pubescent in the upper 

 part. Stems erect. Leaves sessile, usually lanceolate, sometimes 

 oblong-ovate or obovate, usually acute, irregularly and acutely 

 serrated, narrowed at base, green on both surfaces ; upper floral 

 leaves bractea-formed, shorter than the calyxes. Racemes ter- 

 minal, simple, or paniculately branched. Flowers nearly sessile, 

 approximate, or distant. Corolla flesh coloured or purple, 

 showy, 10-11 lines long, and sometimes more than an inch. 



Virginian Physostegia. Fl. July, Sept. Clt. 1683. PI. 1^ 

 to 3 feet. 



2 P. IMBRICA'TA (Hook. bot. mag. 3386.) tall ; leaves ellip- 

 tic-lanceolate, coarsely serrated; spikes panicled, tetragonal; 

 flowers erect, densely imbricate ; upper lip of corolla concave : 

 tube scarcely inflated. %. H. Native of Texas. Corollas 

 reddish purple above, pale and almost white below. 



Imbricate-fiowered Physostegia. Fl. July, Sept. Clt. 1834. 

 PI. 2 to 3 feet. 



3 P. TRUNCA'TA (Benth. lab. p. 505.) calyx truncate, obscurely 

 3-5-lobed ; lobes very broad, denticulated. %. H. Native of 

 Mexico, in the province of Texas. Stems erect, nearly sim- 

 ple, pubescent. Leaves and inflorescence similar to those of P. 

 Virginiana. Floral leaves broad-ovate at the base, equalling 

 the calyxes. Corollas red. 



TYwwcate-calyxed Physostegia. Fl. July, Sept. PI. 1| foot. 



Cult. Elegant plants of easy culture, well fitted for decorat- 

 ing flower borders. Any common garden soil suits them, and 

 they are readily propagated by dividing at the root. 



LXXIV. MACBRFDEA (named in memory of James Mac- 

 bride, M.D. of South Carolina.) Elliott, bot. car. *!. p. 86. 

 Benth. lab. p. 505. 



LIN. SYST. Didynamia, Gymnospermia. Calyx campanulate, 

 membranaceous, irregularly veined, 3-lobed ; superior lobe ob- 

 long, lower ones roundish. Corolla with a long exserted tube, 

 which is exannulate inside, an inflated throat, and a bilabiate 

 limb ; upper lip erect, entire, rather concave ; lower lip shorter 

 and spreading, with roundish lobes, middle lobe the broadest. 

 Stamens 4, didynamous, ascending under the upper lip, lower 

 ones the longest ; anthers approximate by pairs, 2-celled : cells 

 divaricate. Style shortly bifid at apex. A genus closely allied 

 to Physostegia. 



1 M. PULCHE'LLA (Elliott, 1. c.) y.. H. Native of Carolina, 

 in bogs, Elliott ; near Augusta, Wray. Thymbra Caroliniana, 

 Walt. fl. car. p. 162. Melittis Caroliniana, Spreng. syst. 2. p. 

 700. Prasium incarnatum, Walt. fl. car. p. 165. Stems erect, 

 glabrous. Leaves petiolate, oblong-elliptic, bluntish, obscurely 

 serrated or sinuated, rounded or cuneated at the base, thin, quite 

 glabrous, or furnished with a few scattered hairs above. Whorls 

 1 or 2 at the top of the stem, about 6-flowered. Corolla lj 

 inch long, glabrous, pale red. ? Filaments villous. 



Neat Macbridea. PI. 1 foot. 



Cult. For culture and propagation, see Physostegia above. 



LXXV. SYNA'NDRA (from <ruv, syn, together ; and 

 avSpoy, aner andros, a male ; in reference to the anthers approxi- 

 mating by pairs.) Nutt. gen. amer. 2. p. 29. Benth. lab. p. 506. 

 L&mium species, Michx. 



LIN. SYST. Didynamia, Gymnospermia. Calyx inflately cam- 

 panulate, membranaceous, irregularly veined, with 4 nearly equal 

 teeth. Corolla with a much exserted tube, which is dilated above 

 as well as the throat, and exannulate inside ; limb bilabiate : 

 upper lip erect, rather concave, entire : lower lip spreading, 3- 

 lobed : lobes ovate, middle one broader and emarginate. Sta- 



mens 4, ascending, didynamous : lower pair the longest ; fila- 

 ments exappendiculate, hairy ; anthers approximating by pairs, 

 glabrous, 2-celled : cells distinct, divaricate ; upper cells of the 

 superior anthers connate, obtuse, empty ; the rest all acute and 

 fertile. Upper lobe of style very short ; lower one longer, stig- 

 matiferous almost from the base. Achenia dry, large, somewhat 

 inflatedly compressed, smooth. The want of the upper lobe of 

 the calyx is peculiar to this genus. 



1 S. GRANDIFLORA (Nutt, 1. c.) 1]. . ? H. Native of North 

 America ; in Kentucky, Torrey ; Tenessee, in woods, Michx ; in 

 shady places, near Cincinnati, on the Ohio, Nutt. -Habit of 

 Lamium. Stem nearly simple, beset with long hairs. Leaves few ; 

 lower ones on long petioles, broad-ovate, subacuminated, cre- 

 nated, cordate at the base, thin, green on both surfaces, furnished 

 with a few hairs ; superior leaves ovate-lanceolate, quite entire ; 

 uppermost ones hardly longer than the calyxes. Whorls few, 

 distant, few-flowered. Corolla showy, cream-coloured, 1|- inch 

 long. 



Great-flowered Synandra. PI. 1 foot. 



Cult. For culture and propagation, see Lamium, below. 



LXXVI. LA'MIUM (from Xai^oe, laimos, the throat; so 

 called from the ringent flowers.) Lin. gen. no. 716. Schreb. 

 gen. 971. Tourn. inst. t. 85. Juss. gen. p. 113. Benth. lab. 

 p. 507. Orvala, Lin. gen. 715. Papia, Michell, gen. p. 17. 

 Galeobdolon, Huds. and other authors. Pollichia, Roth, fl. 

 germ. Erianthera, Benth. in Hook. bot. misc. 3. p. 380. but 

 not of Nees. 



LIN. SYST. Didynamia, Gymnospermia. Calyx tubularly cam- 

 panulate, about 5-nerved, with an equal or often oblique mouth ; 

 teeth 5, nearly equal, or the upper ones are longer, subulate at 

 apex. Corolla with an inclosed or exserted tube, naked or with 

 a hairy ring inside ; limb bilabiate ; upper lip ovate or oblong, 

 somewhat arched or galeate, for the most part narrowed at the 

 base ; throat dilated ; lateral lobes truncate at the margins of 

 the throat, rarely oblong, furnished with a tooth-formed appen- 

 dage or mutic ; middle lobe broad, emarginate, contracted at the 

 base, substipitate. Stamens 4, didynamous, lower pair the long- 

 est ; anthers approximate by pairs, 2-celled : cells at length di- 

 varicate, oblong, hairy outside or naked. Style about equally 

 bifid at top ; lobes subulate, stigmatiferous at apex. Achenia 

 dry, triquetrous, with acute angles, truncate at apex, smooth or 

 wrinkled from minute tubercles. Herbs decumbent at the base. 

 Lower leaves on long petioles, small ; middle cauline leaves 

 large, usually cordate at the base, wrinkled, for the most part 

 doubly or deeply toothed ; floral leaves almost similar to the 

 rest : upper ones smaller and more sessile ; all exceeding the ca- 

 lyxes. Whorls dense, axillary ; lower ones or all remote, but 

 the superior ones are usually approximate. Bracteas few, shorter 

 than the calyxes, subulate, rarely lanceolate. Corollas red, pur- 

 plish, white, or yellow. 



SECT. I. ORVA V LA (Orvala is a name applied to sdlvia sclarea 

 by old botanists, which is probably derived fromOrval in France.) 

 Benth. lab. p. 508. Orvala, Lin. gen. no. 715. Tube of corolla 

 straight, transversely annulate inside ; throat very wide. Galea 

 ovate. Anthers glabrous. 



1 L. ORVA'LA (Lin. spec. p. 808.) stems erect; leaves large, 

 broad-ovate, truncate or cordate at the base, rugose, rather vil- 

 lous ; tube of corolla straight, exserted, furnished with a ring of 

 hairs inside : throat very wide : galea ovate, entire : lateral 

 lobes very short, mutic. 1. H. Native of Italy, Pannonia, 

 and Istria, Willd. ; Piedmont, Allioni ; France, near Nannete, 

 Ronamy. Curt. bot. mag. t. 172. Mill. fig. t. 158. L. Pan- 

 nonicum, Scop. fl. earn. t. 27. Orvala lamioides, D.C. fl. fr. 3. 



