sidalcea MALVACEAE. 101 



what decumbent, hairy or nearly glabrous : leaves round-cordate, crenate, 

 more or less strongly 5-7 lobed ; peduncles axillary, solitary or clustered, 

 1-3 lines long : calyx-lobes acute, becoming very broad and enlarged in 

 fruit: petals 2-3 lines long: capsule transversely reticulate-rugose. A 

 weed from Europe, on the Coast from Puget Sound to Lower California. 



M. rotundifolia L. Stems prostrate from a perennial root, 6-20 inches 

 long, leaves cordate-orbicular, obtusely 5-lobed and crenate on elongated 

 pubescent petioles: pedicels axillary, .1 -flowered in volucral bracts ob- 

 long-linear: calyx lobes acutely triangular: petals 4-8 lines long, pale 

 purple: carpels numerous, wrinkled. Roadsides and waste grounds; in- 

 troduced from Europe. 



2 SIDALCEA Gray PI. Fendl. 18. 



Herbs with more or leys deeply lobed leaves and purple or 

 white flowers in a terminal raceme or spike : involucre none : ca- 

 lyx 5-parted. Staininal column double, the filaments of the 

 outer series united usually into 5 sets opposite the 5 petals, of 

 the inner distinct. Styles filiform, stigmatic on the inner face. 

 Carpels 5-9, with a single ascending seed in each, separating at 

 maturity from the short axis, sometimes beaked, indehiseent. 

 Ours all perennials. 



* Pubescence not hirsute. 



S. glaucescens Greene Bull. Cal. Acad: 3, 77. Minutely stellate-pub- 

 escent, and somewhat glaucous throughout : stems numerous and decum- 

 bent, 2 feet high, rather slender: leaves, even the lowest, palmately 5-7- 

 parted, the crenate divisions 3-5 lobed or toothed, those of the uppermost 

 entire: raceme simple, loosely flowered : divisions of the calyx attenuate- 

 acuminate: petals deep purple, obtuse or at most only truncate: carpels 

 with distinct longitudinal reticulations. Oregon, Hall; station not noted 

 to Mount Shasta and the Sierra Nevada Mountains, California. 



S. malva?flora Gray PI. Wright i, 16. Stems 2-4 feet high, erect or a 

 little decumbent, mostly solitary from a fusiform root: hirsute below and 

 on the calyx and pedicels ; short, stellate pubescence wanting : leaf mar- 

 gins ciliate : radical leaves orbicular with open sinus and 5-9 shallow, 

 crenate-incised lobes: the uppermost cauline 5-7-parted into linear, entire 

 segments: raceme usually solitary, virgate : pedicels erect, twice the length 

 of the calyx, the lobes of which are broadly ovate, acuminate : carpels 

 smooth, depressed. Idaho to Colorado, New Mexico and Arizona. 



S. virgata. Stellate pubescent throughout: stems numerous from the 

 thick somewhat woody root, spreading or ascending, sparingly branched, 

 6-24 inches high : leaves orbicular in outline, 1-4 inches in diameter all 

 petioled, the lower more or less deeply 5-7 lobed, the obtuse, oblong lobes 

 coarsely toothed at the apex, densely stellate-pnbesGent beneath, more 

 sparsely so with more simple appressed hairs above: upper more deeply 

 lobed or parted with linear-acute or acutish entire or sparingly toothed 

 segments: flowers bright purple in virgate racemes: bracts setaceous, 

 calyx lobes lanceolate, acuminate, 2-3 lines long, rounded, or refuse and 

 minutely erose-dentate at the apex. Common on dry hillsides, Willam- 

 ette valley to the northern boundry of California. 



* * Pubescence of two kinds, hirsute and stellate. 



S. spicata Greene 1. c. 76. Equably hispid-hirsute throughout, tha 

 hairs simple and not deflexed, stellate pubescence sparse, mostly confined 

 to the under surface of the leaves and the calyx where it is minute : stems 

 2 feet high, strict and simple, or with a few short branches above : lowest 

 leaves orbicular, lobes and teeth shallow, rounded; cauline parted into 7 



