

January 31, 1910 3 



Eriogonum pinetorum sp. nov. 



Annual, related to E. Abertianum^ quite as tall, compara- 

 tively slender, the foliage thin, not hoary: stem simple and very 

 leafy for a few inches above the base with ovate, lance-ovate and 

 elliptic sparingly villous short-petioled leaves; thence parted 

 into a very large and loose cymose panicle, the nodes marked by 

 verticils of oblong and oblong-linear sessile leaves or bracts: seg- 

 ments of the involucres subulate-lanceolate, little longer than 

 the body and much shorter than the depressed-globose flower 

 cluster: outer sepals orbicular, but with manifest linear sinus at 

 base, smaller than in allied species, flesh-colored. 



Species common enough in open pine woods of the higher 

 mountains of New Mexico and Arizona, entirely above and be- 

 yond the range of E. Abertianum of the open plains below; the 

 type specimen is O. B. Metcalf 's number 1327 from the Black 

 Range, Sierra county, New Mexico; but it is in the U. S. Her- 

 barium from the Organ Mountains, G. R. Vasey, 1881, also from 

 mesa west of the Organ Mountains, Wooton and Standley, 1906. 

 I also refer here certain specimens collected by Dr. E. A. Mearns 

 at Dog Springs, New Mexico, in 1883, others by the same from 

 along the Mexican boundary near Whitewater, in the same year, 

 besides one sheet from Monument no. 82. 



TrueZT. Abertianum, when as large as E. pinetorum, is still 

 a stout coarse sparingly branched and sparingly flowering plant, 

 with a firmer and hoary foliage, most of the younger leaves 

 being crisped on the margins, and rather strongly so. Its invo- 

 lucres are different, and its outer sepals not quite orbicular. 



