363 
While collecting in the cafion below the Falls of the Yadkin 
river in North Carolina last April, I found unusually well devel- 
oped plants of Sazifraga Virginiensis ranging from four to five deci- 
meters in height, but more remarkable was the great quantity of 
small bulblets produced by the subterranean portions of the plants, 
and also the numerous offsets. The same features were noticed 
in specimens gathered on Dunn’s mountain in the same state. 
SAXIFRAGA CALIFoRNICA Greene, Pittonia, 1: 286. 1880. 
In the light of recent discoveries, Prof. Greene has not pointed 
out any reliable distinguishing characters in discussing the rela- 
tions between Saxifraga Californica and S. Virginiensis. The two 
species are closely related in habit, and the one is about as varia- 
ble as the other. Prof, Greene lays much stress on the occurrence 
of small bulblets in Saxifraga Californica, but we now know that 
S. Virginiensis also possesses this character. After examining many 
specimens for the purpose of finding some diagnostic characters in 
the two closely related plants, I find that the flower furnishes the 
best. Besides the reflexed or erect calyx-segments, these organs in 
Saxifraga Californica are ovate or oblong-ovate and obtuse, while 
those of S. Virginiensis are triangular, triangular-ovate, or rarely 
nearly lanceolate, and acute or acutish. The petals furnish another 
character; those of the western plant are broadly oval or suborbi- 
cular, some or all notched at the apex, while their lateral nerves 
vanish in the blade; in the eastern plant they are narrowly elliptic 
or elliptic-spatulate, not notched at the apex, and the lateral nerves 
converge to the mid-nerve at the apex. 
SAXIFRAGA FRAGOSA Suksdorf n. sp. 
Perennial by an ascending or horizontal rootstock, scapose 
Slender, pale-green, rough glandular-pilose with rigid hairs. 
Leaves basal, leathery, the blades ovate or oblong-ovate, I.5—4 cm. 
long, usually exceeding the petioles, glabrate, obtuse, entire or 
undulately toothed, abruptly narrowed or truncate at the base, de- 
Current on the winged petiole, which is slightly dilated at the 
base ; Scapes erect or assurgent, 2—3 dm. tall, solitary, paniculately 
or somewhat corymbosely branched at the top, the branches as- 
cending or nearly erect, subtended by lanceolate or spatulate 
bracts; flowers white, 5—6 mm. broad, in many-flowered cymules; 
calyx broadly campanulate, the tube 2.5 mm. broad, adnate to the 
