NEW WESTERN SPECIES. 169 



much smaller, clawed petals. Its inflorescence is also of another 

 character, being a panicle of corymbose cymes, while that of S. 

 Californica is a cymose panicle of racemes. In S. Grayana it 

 seems to have an eastern ally. That, however, is a much larger 

 plant in every way, with a pilose pubescence and narrower petals. 



Collected by Aven Nelson at Sundance, Wyo., July 6, 1896, No. 

 2823. Also secured the past season in the Yellowstone National 

 Park; No. 5917 (type), near Yancey's July 17, 1899; No. 6372, 

 Lewis River, Aug. 9. 



3axifraga subapetala. Scapes solitary, from a thickened, 

 corm-like caudex which is covered with numerous fibrous roots, 

 hirsute, often minutely so, and somewhat glandular, 2-4 dm. high ; 

 leaves elliptic to narrowly so or oblanceolate, some of the earlier 

 often oval or rhombic-ovate, gradually narrowed at base into short, 

 broad, margined petioles of less than half their length, obtusish or 

 acute, entire or remotely repand-denticulate, both sides glabrous or 

 sparsely covered with short, crisp hairs, the midrib underneath 

 usually sparsely hirsute, margins fringed with ciliate hairs, 5-10 

 cm. long; panicle spiciform; the glomerules dense; the bracts lin- 

 ear to lanceolate; flowers subsessile or short-pediceled ; calyx tube 

 adnate to the carpels very nearly its whole length, broadly turbinate- 

 cainpanulate, inclosed in a scarious envelope; calyx lobes a little 

 onger than the tube, broadly ovate, obtuse, longer or as long as 

 broad, 3-nerved, the lateral nerves branched, at length reflexed 

 2.5-3 mm. long; petals wanting or present, white or tinged with 

 red, mijiute, oval, obtuse, not clawed, with two lateral nerves aris- 

 ing just below the middle, these evanescent or converging to the 

 mid-nerve near the apex, 1-2 mm. long; filaments subulate, about 

 half the length of the calyx lobes; anthers red; ovaries with a 

 deep, narrow concavity between them, immersed in a crested- 

 margined disk, this margin persisting at the middle of the mature 

 carpel as an undulate ridge; styles conical; mature carpels distinct, 

 compressed, ovoid, widely divergent at summit, red or purple; 

 seeds elliptic, irregularly wing-margined, short-tuberculate in lines. 



This seems to be as good a species as any of the recent segre- 

 gates of S. integrifolia. It is well characterized by the scarious 

 envelope of the calyx, the absence of petals or their minuteness 

 when present, and the undulate ridge of the carpels. It resembles 



