198 Proceedings of the Biological Societi/ of ]]^ashington. 
Valley Expedition. It is so clearly distinct from any other 
western species that the writer does not hesitate to ])ropose it 
as new. 
Amelanchier covillei Stiiiulley, sp. iiov. 
Rraiiclias very stout, l)rowuisli red, glabrous; petioles stout, d to 10 
mill, long; leaf lilades obloug-orbicular to rouuded-oval or rarely obovate- 
orbiculai-, 12 to 20 mm. long, <S to 17 mm. wide, usually jioiuted at the 
apex and obtuse or sometimes rounded, obtuse or broadly rounded at the 
base, rather finely but irregularly crenate-serrate, the teeth a]ucuhite, 
subcoriaceous, pale green and somewhat glaucous on the upper surface, 
paler green beneath, glabrous; racemes glabrous, ratln'r deusidy few- 
flowered; ]iedic,els 2 to 12 mm. long; ovary and calyx glabrous, tlu' 
calyx lobes triangular-subulate, 2.5 mm. long; iietals obovate-obloug, 
rounded at the apex, 5 to 0 mm. long, 2 to 2.5 mm. wide; fruit not seen. 
Type in the U. 8. National Herliarium, No. 47,105, collected in Cot¬ 
tonwood Canyon, Panamint IVIountains, California, May 27, 1801, by 
Frederick V. Coville and Frederick Funstou (Death \bdley Flxpedition 
No. 002). 
This is related to Amelanchier glabra and A. alnifolin, lint the petals 
are only half as long as in those species. The leaves are usually pointed, 
ratluw than broadly rounded or truucati;, as in A. glabra, thicker and 
relatively narrower, while the petals are proportionally bnuuUn-. Ame¬ 
lanchier alnifolia, likewise, has much broader, larger, tbinmn’, and 
brighter green leaves than .1. covillei. 
