(13) 
Named in honor of Professor William R. Dudley, of Stanford 
University. 
Type species, Lcheverta lanceolata Nutt. 
1. DupLeya Russyi (Greene) Britton & Rose. 
Cotyledon Rusby¢ Greene, Bull. Torrey Club, 10: 125. 1883. 
robably perennial, acaulescent ; leave es in dense rosettes, rhom- 
fo) 
calyx-lobes somewhat unequal, ovate, obtuse or acute; corolla deep 
red or ‘‘ coral red,” 10 mm. long, the lobes acuminate, the tube longer 
than the calyx. 
The only definite locality given is the San Francisco Mountains 
in southern Arizona, although it has been collected also by Lem- 
mon somewhere in Arizona, station not stated. 
2. Dudleya albiflora Rose, sp. nov. 
ten by a multicipital caudex 2-3 dm. in diameter and 
aa cm. broad, strap-shaped to lanceolate, 4-5 cm. long, becom- 
ing purplish, not eo penou thick and fleshy but Ucineily tenes. 
acute ; corolla 
Living specimens sent by T. S. Brandegee, collected at Magda- 
lena Bay, Lower California, in the fall of 1902 
3. DuDLEYA PULVERULENTA (Nutt.) Britton & Rose. 
Echeveria pulverulenta Nutt.; T. & G. Fl. N. Am. 1: 560. 
1840. 
VC Riana Baker, in Saund. Refug. Bot. 1: f/. 66. 
1869. 
PEcheveria argentea Lem. Il]. Hort. 10: 78. 1863. 
Southern California. 
4. Dudleya Anthonyi Rose, sp. nov. 
Resembling D. pulverulenta, but basal leaves more elongated, 
z dm. long by 4-5 cm. broad, stem-leaves ee? narrower; 
pedicels arene and longer, and calyx-lobes narrower 
Collected by A. W. Anthony on San Martin Island, Lower Cali- 
fornia, July-October, 1896 (no. 123, type), July 15, 1896, March 
13, 1897. 
