367 
in Oregon. But in addition to these leaf-characters, the flower 
furnishes good points of distinction. 
The calyx-segments in Saxifraga Sierrae are suborbicular and 
broader than long (except in Mr. Howell’s specimens, where the 
whole vegetative and floral systems are abnormally elongated), 
the calyx-segments in SS. integrifola are ovate and longer than 
broad; the petals are ovate or broadly oblong and retuse at the 
apex, as opposed to the obovate petals of S. integrifolia with their 
rounded apices. 
SAXIFRAGA REFLEXA Hook. Fl. Bor. Am. 1: 249. pl.85. 1833. 
Several unsuccessful attempts to reéstablish this rare species 
have been made. Taking Hooker’s excellent plate as a basis, 
and this is all we have to go on besides his description, I find that 
the following numbers from the collections of the Northern Trans- 
continental Survey, distributed as Saxifraga nivalis,tare S. reflexa: 
51a Scribner, 740 and 741 Tweedy, 757 Brandegee and 111 Canby. 
These are the only representatives of S. seflexa I have seen and 
are all in the Canby herbarium. 
SAXIFRAGA MONTANENSSIS nN. sp. 
Scapose,erennial by a stout horizontal or ascending rootstock, 
coarse, stout, glandular-pilose. Leaves basal, ovate or lanceolate, 
‘5-I.5 cm. long, leathery, obtuse or acute, serrate-dentate, nearly 
sessile or apparently sessile on account of the broadly winged 
and dilated petiole; scapes solitary, erect, 3-6 dm. tall, stout (6-11 
mm. in diameter), paniculately branched above, the branches 
usually shorter than the internodes; flowers greenish, almost 11 
mm. broad, in dense glomerate cymules; calyx turbinate-cam- 
Panulate, 5-parted to below the middle, its tube adnate to the 
Ovary, its segments triangular-ovate, obtuse, at length deflexed; 
petals 5, greenish, lanceolate or linear, often slightly oblique, 3.5 
mm. long, obtuse, 3-nerved, the lateral nerves arising below the 
middle, running close to the mid-nerve; filaments subulate, thrice 
shorter than the petals ; fruit not seen. 
Southwestern Montana, in bogs at 1,850 meters elevation. Col- 
lected by Mr. Frank Tweedy (No. 58), July, 1888. Also found 
by Prof. F. D. Kelsey at Millan, Montana. The proposed species 
Stands between Saxifraga Sierrae and S. Pennsylvanica. It differs 
from the former in its harsh pubescence which gives it a dull 
green color and in its comparatively small greenish flowers. From 
