WOOTON AND STANDLEY—FLORA OF NEW MEXICO. 297 
8. Micranthes rhomboidea (Greene) Small, N. Amer. Fl. 22: 136. 1905. 
Sazxifraga rhomboidea Greene, Pittonia 3: 343. 1898. 
Type Locatity: Colorado Rocky Mountains, 
Rance: Montana to New Mexico. 
New Mexico: Wheeler Peak; Santa Fe and Las Vegas mountains, Moist ground, 
Transition to Arctic-Alpine Zone. 
4. LEPTASEA Haw. 
More or less matted herbaceous perennials, with well developed leafy caudices and 
leafy flower stalks a few centimeters high; leaves simple, alternate, thickish, often 
clustered at the base; flowers few or rather numerous; sepals 5; petals 5, usually 
clawed, white or yellow; stamens 10; ovary mostly superior; carpels united to above 
the middle; follicles erect with spreading tips. 
KEY TO THE SPECIES. 
Petals white, dotted with yellow and purple. ............-.-- 1. L. austromontana, 
Petals yellow. 
Leaf blades spine-tipped. ....-.... 2... eee eee eee eee eee 2. L. flagellaris. 
Leaf blades not spine-tipped. .....-......2-02+eeeeeee--- 3. ZL. chrysantha., 
1. Leptasea austromontana (Wiegand) Small, N. Amer. Fl. 22: 153. 1905. 
Saxifraga austromontana Wiegand, Bull. Torrey Club 27: 389. 1900. 
Saxifraga cognata E. Nelson, Bot. Gaz. 30: 118. 1900. 
Type Locatity: Not definitely stated. 
Rance: Alberta and British Columbia to Washington, Montana, and New Mexico. 
New Mexico: Santa Fe and Las Vegas mountains; Hillsboro Peak; White Moun- 
tains. Damp cliffs, in the Transition and Hudsonian zones, 
2. Leptasea flagellaris (Willd.) Small, N. Amer. Fl. 22: 154, 1905. 
Saxifraga flagellaris Willd.; Sternb. Rev. Saxifr. 25. 1810. 
TYPE LOCALITY: Caucasus. 
Ranae: Arctic regions, south in the Rocky Mountains to Arizona and New Mexico. 
New Mexico: Baldy; Wheeler Peak; Pecos Baldy. Arctic-Alpine Zone. 
3. Leptasea chrysantha (A. Gray) Small, N. Amer. Fl. 22: 152. 1905. 
Saxifraga chrysantha A. Gray, Proc. Amer. Acad. 12: 83. 1877. 
Type Locauity: ‘High alpine region of the Colorado Rocky Mountains, especially 
abundant on Torrey’s and Gray’s peaks.’’ 
Rance: Colorado and northern New Mexico. 
New Mexico: Wheeler Peak; Truchas Peak; Pecos Baldy; Bartlett Ranch; 
Mountains, in the Arctic-Alpine Zone. 
5. LITHOPHRAGMA Nutt. 
Slender perennial with low simple stems and bulblet-bearing rootstocks; leaves 
mostly basal, ternately divided, the divisions again subdivided; hypanthium cam- 
panulate; petals white, clawed, digitately cleft, longer than the sepals; stamens 10, 
included; gynecium 1-celled, 3-valved. 
1. Lithophragma australis Rydb. N. Amer. Fl. 22: 86. 1905. 
Type Locatity: Rocky hillsides, Cedar Creek, Arizona. 
Rance: Wyoming to Arizona and New Mexico. 
New Mexico: Hills near Tierra Amarilla (Eggleston 6442, 6579). Open slopes, in 
the Transition Zone. 
