186 R0SA0E4i|.t SPiB^A. 



shallow lobes above the middle, the genefal outline orbicular or oval, with 

 many slight-rounded and crenately toothed secondary lobes: corymbs 

 mostly simple, short-stalked : calyx tomentose, very large, broadly cam- 

 panulate, its lobes in maturity connivent over the fruit: carpels 2 (some- 

 times 3) not inftlated, connate above the middle, compressed, erect and 

 straight at apex, indehiscent, 1- or 2-geeded : seeds large, oblong-obovate. 

 Pry rocky banks, above the northern shore of Lake Pend d' Oreille in 

 Northern Idaho. 



18 SPIR^A Tourn. L. Gen. n. 630. 



Shrubs with simple alternate leaves without stipules and 

 white or rose-color perfect flowers in compound corymbs or 

 elongated panicles or spikes. Calyx 6-cleft, persistent, the disk 

 more or less free at the margin. Petals 5, rounded, nearly ses- 

 sile, stamens numerous, perigynous, inserted with the petals in- 

 to the disk. Carpels 5, alternate with the calyx-lobes, distinct, 

 sessile, becoming dry cartilaginous several-seeded follicles, not 

 inflated. Seeds small, p'lndulous, linear, with a thin membrana- 

 ceous testa and no albumjn. 



S. Incida Dougl. (see Greene Pitt, li, 221). fi. betulsefoUa of Ameri- 

 can authors in part, not Pall. Stem? erect, mostly simple, 1-2 feet high, 

 from horizontal running and woody not deep-seated rootstocks or roots: 

 lowest leaves smuU, obovate to oblanceolate, the upper oval to oblong, 

 1-2 inches long, acutish often obscurely lobed, sharply and doubly serrate 

 above the middle, narrowed below to a short petiole, glabrous throughout, 

 pale and glaucescent beneath : flowers white, in a terminal glabrous com- 

 pound fastigiate corymb : calyx-lobes triangular, shorter than the t'ibe, 

 reflexed ; petals elliptical, shortly unguiculate ; stamens 15-2t), filaments 

 three times as long as the petals ; carpels 5, glabrous a line or more long, 

 tipped with a style half as long, 5-8-ovuled. Common on dry wooded hil^ 

 sides, Brit Columbia to Oregon and Montana. 



S. pyramldata Greene Pitt, ii, 221. S. betulsefoHti of American au- 

 thors in part, not Pall. Stems erect, sometimqs cespitose, often branched, 

 1-3 feet high : leaves elliptical to oblong, mostly obtuse, narrowed at base 

 tp a short petiole, coarsely serrate above the middle, 1-2 inches long: 

 flowers white to rose-color, in a dense pyramidal compound panicle; calyx 

 more or less pubescent, its broadly ov^ate lobes about equalling the short 

 campanulate tube ; petals orbicular, less than a line long; filaments very 

 slender, not twice the length of the petals ; follicles glabrous, scarcely a 

 line lone, tipped with a style of equal length. On rocky ridges, Oregon 

 and Washington. 



S. arbnscula Greene Erythea iii, 63. S. betulxfoUa var. rosea Gray. 

 Stems erect, 2-4 feet high or more, red, shedding annually a thin bark: 

 leaves ovate to elliptical, serrulate at the apex, entire below, narrowed at 

 base to a very short petiole or the lowest sessile, dark green both sides, 6-8 

 lines long : flowers deep rose-color, in small roundish leafy-bracted cor- 

 ymbs, terminating the numerous branches ; calyx-lobes deltoid-ovate, not 

 reflexed, about as long as the broad tube ; petals oblong, narrowed at 

 base to a very short claw; filaments twice as long as the petals : free edge 

 of the disk obsolete or reduced to a mere ring : carpels glabrous ; styles 

 shorter than the petals. Along brooks at subalpine elevations in the 

 Cascade and Sierra Kevada Mountains. 



8. Donglasii Hook. Fl. i, 172. Stems erect, 3-8 feet high, with red- 

 dish-brown bark, cespitose and forming dense patches several yards in ex- 

 tent, branching, young branches and inflorescence more or less densely 

 tomentose ; leaves elongated-oblong, 1-4 inches long by 6-12 lines broad, 



