134 THE AMERICAN BOTANIST 



allusion to the stout branches with leaves only near the dps 

 which thus appear to be naked. The same word for branch, 

 and a word for brittle, forms Cladrastis. The clover genus, 

 Trifoliuni, scarcely needs definition as most readers will 

 recognize the words three and leaf in the name. Melilotus 

 the sweet clover genus is from mel, honey and the ancient 

 name lotus. Parosda, by which the species of Dalea are some- 

 times known is an anogram of Psoralea. Vari(nis other 

 names have been given to certain of the genera in this family, 

 but all within our limits that are recognized by the Inter- 

 national Code are included in the foregoing: notes. 



H 



AN EXCURSION IN THE SAN GABRIELS 



By George L. Moxley 

 aving an extra holiday because the Forth of July came on 



■M(jnday this year, Mr. Robert Kessler and the writer de- 

 termined on a trip farther back into the San Gabriel Range than 

 we had before had time for. By trolley and auto stage 

 we went by way of Pasadena; up the Arroyo Seco Canyon 

 and then walked about four and a half miles to Switzer's 

 Camp where we spent the night. Early Sunday morning we 

 started for Pine Flats, via Barley Flats, a distance, according 

 to signs posted along the way, of about seventen and a half 

 miles, but to one walking over mountain trails apparently a 

 half more. Monday the return journey was made by way 

 of the Trail Fork Canyon, the West Fork of the San Gabriel 

 River, around San Gabriel Peak, Mt. Markham and Mt. 

 Lowe, to Alpine Tavern, where we took the trolley for Los 

 Angeles. 



In the lower Arroyo Seco the canyon sides are covered 

 with the usual chaparral of cliamiso, or greasewood (Aden- 

 ostoma fascicidatum) , not the greasewood of the plains but 



