NEW LABIATA. 843 
The common marsh Stachys of the Colorado Rocky 
Mountains; having long figured, but altogether erroneously, 
as S. potusirte. 
STACHYS MALACOPHYLLA. S. velutina, Greene, Eryth. ii. 
121. The name at first proposed for this large segregate 
from the S. albens of Gray, had long been preoccupied for 
an Old World species, as the last volume of the Index Ke- 
wensis shows. 
New or Notewortuy Species,—X XIII. 
SAXIFRAGA RHOMBOIDEA. Stem leafless and scapiform, 
stoutish, 5 to 10 inches high, pubescent: leaves all in a 
radical tuft, usually depressed and rosulate, the earliest ones 
rhombic-ovate, the later more oval, 1 to 21 inches long 
including the broad short petiole, variously toothed, often 
crenate, sometimes repand-dentate, glabrous or the margins 
short-hairy: flowers small, white, in a commonly dense 
ovoid capitate-terminal cluster, but this in fruit becoming 
somewhat obviously branched and thyrsiform: petals white, 
spatulate-obovate, usually emarginate. 
Common species of dry open slopes, chiefly in the belt of 
Pinus ponderosa, in the Colorado Rocky Mountains, thence 
northward to Montana and southward to New Mexico; 
long referred to the Old World S. nivalis, a very different 
alpine or subarctic species. Mr. Holm, who has independ- 
ently made a careful anatomical study of S. nivalis and its 
allies, informs me that this Rocky Mountain plant bears 
internal evidence of a closer relationship to ©. integrifolia 
by far, than to S. nivalis. S. rhomboidea has an American 
but high-northern ally in S. radulina of page 308 preceding. 
ABRONIA CARNEA. Near A. micrantha (i. e. A. cycloptera, 
Gray), but the whole plant much stouter and larger, the 
root probably perennial: perianths four or five times as 
