36 Nelson Some New Western Plants and Their Collectors. 



long, mostly oblanceolate in outline but deeply pectinately toothed or 

 lobed : the yellow flowers small and crowded but the naked racemes in 

 fruit stout and half the length of the plant : sepals oval, yellowish with 

 membranous margins, slightly exceeding the oblong-spatulate petals : 

 silique broadly linear, abruptly pointed by the almost sessile stigma, slightly 

 curved, 12-16 mm. long, ascending, on divaricate pedicels less than half as 

 long as the silique : seeds rather large, pale, crowded, minutely impressed 

 punctate. 



Most nearly allied to R. curvisilequa (Hook.) Bessey which differs from 

 this in being minutelylpubescent or subscabrous, with petals exceeding the 

 sepals, siliques falcate and linear, somewhat torulose, and the seeds small, 

 smooth and somewhat triquetrous. 



The leaves in young plants of the species now proposed are strikingly 

 pectinate, the linear lobes either entire or with a few linear teeth. This 

 species blossoms very early in the season and is in full fruit by May first 

 in the type locality. Its ally comes into blossom and fruit much later in 

 the season (June and July). Collected at The Dalles, Oregon, by Dr. J. 

 Lunell, April 12 and April 16, 1903. The latter is the type and is deposited 

 under the accession No. 54,984. Secured again by the same collector, in 

 mature condition, May 4, 1906, at the type station. 



Sidalcea sylvestris. 



Perennial from a rhizome which is sometimes thickened and corm-like : 

 stems more or less clustered, mostly simple, slender, 5-10 dm. high, green, 

 inconspicuously and very sparsely pubescent below with short forked 

 hairs, the inflorescence minutely stellate : leaves nearly or quite glabrous, 

 the slender petioles somewhat hirsute with branched hairs: radical leaves 

 5-7 lobed, divided or parted, each lobe mostly 3-toothed : stem-leaves 

 palmately 5-7 foliate: leaflets linear, with conspicuous midnerve, 7-12 cm. 

 long, 6-10 mm. broad, tapering gradually to the acute ends : bracts paired, 

 linear, shorter than the pedicel, the lower sometimes accompanied by 

 a long, narrowly linear leaf: raceme simple, slender, at last quite open: 

 calyx-lobes triangular-lanceolate, fully as long as the campanulate tube : 

 petals spatulate-oblong, 15-18 mm. long, twice as long as the calyx, of a 

 delicate pale lavender color : mature fruits not at hand. 



Allied in some ways to both S. campcslris and S. Oregana Greene. The 

 collector, Dr. J. Lunell, surmised that it might be a hybrid, but it does not 

 seem to the writer to have enough of the characters of either to warrant 

 that conclusion. It is a woodland species secured near Wheatland, in 

 Yamhill Co., Oregon. The type bears the accession No. 52,562. 



Zaushneria garrettii sp. nov. 



Caudex with slender woody branches : stems several, simple, slender, 

 erect from somewhat decumbent bases, 1.5-3 dm. high, with pale glabrous 

 shreddy bark below, upward greener and softly hirsute, the hairs long 

 and widely spreading : leaves sessile, crowded, elliptical, oval or ovate, 

 2-3 cm. long, the margin with small rather remote and irregular teeth, 

 green but sparsely soft-hirsute, venation pinnate, the primary veins few 



