PLANT AGINACE.E. (PLANTAIN FAMILY.) 209 



13. PHYSOSTEGIA, Benth. False Dragonhead. 



Almost glabrous herbs : with lanceolate and callose-dentlculate or wrrate 

 leaves; the upper ones sessile, lowest tapering into a petiole, floml reduceU 

 to bracts of the simple or panic-led spikes. Flowers catah'ptii- (riMnaining iu 

 whatever position tiiey may be turned). Corolla showy rose or Hc«h-color, 

 often variegated. 



1. P. parviflora, Nutt. Stems ratlicr slender, leafy, a foot or two high : 

 leaves lanceolate or ovate-lanceolate, denticulate : spikes short, 1 to 4 inehe.H 

 long: calyx short-campanulate, intlated-glohular in fruit and with short 

 mostly obtuse teeth : corolla ^ inch long. — Saskatchewan aiid Wyoming to 

 Oregon and British Columbia. 



14. STACHYS, Tourn. Wo. m. wort. 



Flowers verticillastrate-capitate or clustered, or sometimes few or solitary- 

 in the axils of the floral leaves, forming usually an interrupted spii-ate iutio 

 rescence. In ours the corolla is purple or rose-red, not over k inch lon<; ; the 

 tube not exceeding the calyx-teeth. 



1. S. palustris, L. From densely soft-pubescent to roughish-hirsute, 

 leafy : stem 1 to .3 feet high, hirsute or hispid : leaves ovate-lanceolate, cre- 

 nate-serrate, H to 3 inches long, sessile or nearly so by a broad or subcordate 

 base, sometimes almost velvety-tomentose beneath : clusters of the sj)ike 

 mostly approximate, 6 to 10-flowered. — Across the continent. 



Order 61. PLANTAGIWACEJE. (Plantain Family.) 



Chiefly acaulescent herbs with one to several -ribbed or nerved radical 

 leaves, simply spicate inflorescence, and regular 4-merous flowers, and 

 the corolla scarious and veinless. 



1. PLANTAGO, Tourn. Plavtain. Ribwort. 



Flowers perfect or polygamo-dioecious, each subtended by a bract ; corolla 

 salverform with a short tube, or nearly rotate : stamens 4 or sometimes 2, on 

 the tube of the corolla: ovary 2-celled, with one or more ovules in each cell: 

 capsule circumscissile toward the base: scape from the axils of the nidical 

 leaves, mo.stly bearing a single simple spike or head of greeni>h or whitish 

 small flowers. 

 * Stamens 4 : flowers all perfect : corolla remaining expanded, nei^er rlc^d oirr 



the fruit. 



^ Leaves 3 to 8-nerved or ribbed, vari/ing from glahrous to pulyeacent, from lanrro- 



late to almost rotund} 



1. P. major, L. Leaves ovate or oval, rarcli/ suhcordnte, sn-fml-riUtd : 

 spike commonly dense, obtuse at apex: sepals rotimd-ovate or obovat<? ; the 



» The introduced P. lanceolata-, L., may be knovra by it-? oblonp-l:in.e.)l.ito 3 to &-ribl»ed 

 leaves, tapering into a slender petiole, usually much shorter thou the alciwkr ood ar.iclcd 



