Flora of the Palouse Regio?i 151 



T. oblongum Benth. Annual, erect, branched, 10-30 cm. high, the stem 

 soft-hair}-: leaves oblong or oval, acute, entire, 1-3 cm. long, canescently 

 pubescent, narrowed at base, with a short petiole: flowers in nearly sessile 

 axillary dense cymes; pedicels short: calyx campanulate, hairy, equally 5- 

 cleft, the narrow lobes much longer than the teeth, equalling the corolla- 

 tube: corolla violet: Springy places, rare and local. Rather unpleasantly 

 scented. 



250. SCUTELLARIA. 



Annual or perennial bitter herbs, sometimes woody, not aro- 

 matic: flowers solitary in the axils of leaves or bracts: calyx bell- 

 shaped in flower, 2-lipped, with a gibbous protuberance on the 

 upper side, splitting to the base at maturity, the upper lip at 

 length usually falling away: corolla with an elongated curved as- 

 cending tube, dilated at the throat, 2-lipped, the upper lip erect, 

 arched or galeate: stamens 4, ascending under the upper corolla- 

 lip, the lower pair longer. 



S. angUStifolia Pursh. Perennial, with rather stout somewhat monili- 

 form rootstocks, 15-20 cm. high, puberulent or glabrous: stems simple or 

 little branched: cauline leaves broadly linear or oblong, obtuse, entire, nar- 

 rowed at base, sessile or nearly so, 1-2 cm. long; radical ovate, on longer 

 petioles, sometimes toothed: flowers solitary in the axils; pedicels as long as 

 the calyx: corolla violet-blue, 2.5 cm. long, puberulent outside; lower lip 

 villous within: nutlets minutely granulate. Moist soil, especially in stonv 

 places, common. 



251. MARRUBIUM. 



Bitter-aromatic whitish-woolly perennials, branched at the base: 

 leaves wrinkled: flowers small, much crowded in axillary whorls: 

 calyx tubular, 5-10-nerved, nearly equally 5-10-toothed, the teeth 

 more or less spiny-pointed: corolla 2-lipped, the upper lip erect, 

 notched; the lower spreading, 3-cleft, the middle lobe broadest: 

 stamens 4, short, included in the corolla-tube, the upper pair 

 longer. 



M. vulgare L. Stems tufted, erect, simple, about 30 cm. high, densely 

 white woolly, especially below: leaves broadly ovate, obtuse, coarsely cre- 

 nate, thickish, rounded or cuneate at base, rough, woolly beneath, 1-3 cm. 

 long, on petioles nearly as long: flower clusters dense, axillary: calyx-teeth 

 10, subulate, hooked at the apex, hardened in fruit: corolla white. Abund- 

 antly introduced. 



2 5 2. LOPHAXTHUS. 



Tall perennial herbs: leaves ovate, serrate, petioled: flowers 

 small, in terminal spikes: calyx tubular-bell-shaped, 15-nerved, 

 oblique, 5-toothed, the upper teeth rather longer: corolla 2-lipped, 

 the tube not longer than the calyx, upper lip nearly erect, 2-lobed, 



