374 . . ROSACEA. 
941; Bilimek, 146), Guanaxuato (Hartweg), Zimapan (Coulter, 83), Cuesta de San 
Juan del Estado, Oaxaca, at 7500 feet (Liebmann), Misteca Alta, 7000 feet, and Real 
del Monte, 7500 feet (Galeotti, 3070, 3109), Mineral del Monte, near San Pedro and 
San Pablo (Ehrenberg). Hb. Kew. 
3. Cercocarpus parvifolius, Nutt. in Torr. & Gray, Fl. N. Am. i. p. 427. 
Cercocarpus betulefolius, Nutt. in Hook. Ic. Pl. t. 822. 
Cercocarpus betuloides, Torr. et Gray. 
Rocky Mountains, in the Wyoming Territory ; southward through UTan, CALIFORNIA, 
and Tuxas to—Norre Mexico, San Luis Potosi (Virlet d’ Aoust ; Parry & Palmer, 225). 
Hb. Kew. 
The Mexican plant may be specifically different; but we refrain from describing it 
on account of the evident variability of the true C. parvifolius. Parry and Palmer’s 
specimen has only two lateral nerves on each side of the midrib of the leaves. 
14. COWANIA., 
Cowania, Don in Trans. Linn. Soc. xiv. p. 574; Benth. et Hook. Gen. Plant. i. p. 618. 
The genus consists of three or four shrubby species restricted to Mexico and the 
countries immediately to the north. 
1. Cowania mexicana, Don in Trans. Linn. Soc. xiv. p. 575, t. 22. figg. 1-6. 
Geum? dryadoides, DC. Prody. ii. p. 554; Calques des Dess. Fl. Mex. 297. 
NortH Mexico, Sierra Madre (Seemann, 2176), Sonoita (Wright), various parts of 
Sonora (Torrey); South Mexico, Guanaxuato (Hartweg, 108). Hb. Kew. 
2. Cowania plicata, Don in Sweet’s Brit. Fl. Gard. series 2, t. 400. 
Cowania purpurea, Sieb. et Zucc. in Abhandl. baier. Akad. Wissen. iv. pars 2, p. 7, t. 2. 
Greggia purpurea, Engelm. 
Nort Mexico, uplands of Mexico , (Colquhoun), San Luis Potosi (Virlet @ Aoust), at 
6000 to 8000 feet (Parry & Palmer, 226). Hb. Kew. 
15. FALLUGIA. 
Fallugia, Endl. Gen. Plant. p. 1246; Benth. et Hook. Gen. Plant. i. p. 618. 
The only species, a shrub :-— 
1. Fallugia paradoxa, Endl. ex Torr. in Emory’s Rep. p. 139, t. 2. 
Geum? cercocarpoides, DC. Prodr. ii. p. 554; Calques des Dess. Fl. Mex. 296, 
Sieversia paradoxa, Don in Trans. Linn. Soc. xiv. p. 576, t. 22. figg. 7-10. 
Greggia rupestris, Engelm. 
Uran, Texas, New Mexico, and Catirornia to—NortH Mexico, abundant (Gregg). 
Hb. Kew. 
