Machridea. LABIATE. 383 



B. SCUtellarioides, Engelm. & Gray, 1. c. Almost glabrous : spikes or racemes 

 loose, mostly panicled : lips of tlie calyx unequal ; the upper with 3 ovate-rounded, lower 

 with 2 triangular-lanceolate lobes, all but the uppermost cuspidate: corolla (a third inch 

 long) not pilose-annulate ; its lobes entire or merely retuse : anthers barely ciliolate : nut- 

 lets glabrous. — Phi/sostei/ia tninrata, Hook. Bot. Mag. t. 349-1 (wrongly cited in DC. under 

 preceding species). — Richer prairie soil, Texas, Drummond, Wri<jht, Lindlieimer, &c. 



40. PHYSOSTEGIA, Benth. False DuaCxOn-head. {(hioa, bladder, 

 and axtyi], covering ; from the turgid fruiting calyx, but more applicable to the 

 inflated corolla.) — Perennial erect N. American herbs, almost glabrous ; with 

 lanceolate or oblong and callose-denticulate or serrate leaves ; the upper ones 

 sessile, lowest tapering into a petiole, floral reduced to small subulate bracts of 

 the simple or panicled spikes, most of them shorter than the calyx. Flowers 

 cataleptic (remaining in whatever position they may be turned on the short 

 pedicel, either right or left of the normal position). Corolla showy, rose or flesh- 

 color, often variegated : in summer. 



P. Virginiana, Beuth. 1. c. Stem in larger forms 3 or 4, in smaller 1 or 2 feet high, 

 terminated by a simple virgate or sometimes several panicled spikes : leaves thickish : 

 calyx tubular-campanulate or somewhat turbinate-campanulate, in fruit broader and witli a 

 narrowed base ; its teeth ovate-triangular and very acute, only half the length of tlie tube : 

 corolla commonly an inch long. — Dracocepludum llrginiaimin, L. Spec. ii. 594 ; Sims, Bot. 

 Mag. t. 4G7. D. luncifoUum, Moench, Metli. 410. D. varlecjatum. Vent. Cels, t. 44. Prasium 

 purpiireiim & P. cocciiieuni, Walt. Car. 1G6. — Wet grounds, N. Vermont, W. Canada and 

 Saskatchewan to Florida and Texas : common in gardens. Varies greatly ; the extremes are 



Var, speciosa, a tall form, with very acutely serrate lanceolate leaves, and dense and 

 panicled spikes. — Drarocpp/i(dniii speciosum, Sweet, Brit. Fl. Gard. t. 93, with horizontal 

 flowers Pliijsoste(/iu imbricata, Ilook. Bot. Mag. t. 3380 (not Benth.), a Texan form, with 

 erect imbricated Howcrs. 



Var. denticulata, a more slender and commonly low form, with crenulate-denticu- 

 late or obscurely serrate leaves, and more slender or loosely-flowered spike. — Lhxicocepha- 

 lum deidicniatum. Ait. Kew. ii. 317 ; Sims, Bot. Mag. t. 214. — Middle Atlantic States. 



Var. obovata, with oblong or obovate and often obtuse leaves. — Dracocephalum 

 obonifnm, Ell. Sk. ii. 80. — Georgia to Arizona. 

 P. intermedia, Gray. Stem slender, 1 to 3 feet high, remotely leaved : leaves linear- 

 lanceolate, repand-dcnticulate : spikes filiform, commonly rathei remotely flowered : calyx 

 short and broadly campanulate ; the triangular acute teetli about as long as the tube : 

 corolla 5 or lines long, much dilated upwards. — Proc. Am. Acad. viii. 371. Dracocephalum 

 intermfd'nim, Nutt. in Trans. Am. Phil. Soc. n. ser. v. 187. — Barrens, W. Kentucky and 

 Arkansas to Louisiana and Texas. 

 P. parviflora, Nutt. Stem rather slender, leafy, a foot or two higli : leaves lanceolate or 

 ovate-lanceolate, denticulate; spikes short (1 to 4 inches long): caly.x sliort-campanulate, 

 inflated-globular in fruit and with short mostly obtuse teeth : corolla ratlier narrow, half 

 inch long. — Nutt. (ex Bentii., under P. imbricata, Benth. 1. c, not Hook. Bot. IMug.) ; Gray, 

 Proc. Am. Acad. viii. 371. — Banks of streams, Saskatchewan and Wyoming to Brit. 

 Columbia, and Oregon. 



41, MACBRlDEA, Ell. (In memory of Dr. James Machride.) Gla- 

 brous or sparsely hirsute perennials (of S. Atlantic States) ; with simple stems, a 

 foot or more high, lanceolate or spatulate-oblong repand-toothed or entire minutely 

 punctate leaves ; the floral becoming thickish and rounded imbricated bracts of 

 a capitate and rather few-flowered capitate inflorescence. Flowers showy (corolla 

 over an inch long), in late summer. (Anthers not pilose loithln tlie cell, as stated, 

 but mainly on the inner face.) — Ell. Sk. ii. 56 ; Chapm. Fl. 324. 



M. pulchra, Ell. 1- c. Leaves oblong-lanceolate, mostly acute at both ends and tapering 

 into a petiole, thinnish ; floral or bracts ovate, acute : lateral lobes of the calyx entire or 



