1905] ELMER—NEW WESTERN PLANTS 4Q 
ones entire, the larger ones remotely dentate: heads turbinate, 8"™ 
long, upon leafy bracteate peduncles: 5 involucral bracts 6™™ long, 
uniserial, narrowly oblanceolate, the apex sparsely hispid pubescent, 
acuminate: ray flowers: ligulate corollas rarely more than three to 
each head, the basal tubular part 1™™ long, ovate, papillose; the 
expanded wing broadly obovate, 5™™ long, nearly that in width, yellow, 
the apex bearing a narrow middle tooth: achenes without pappus, 2™™ 
long, obovate, brown or possibly black when mature, puberulent, 
triquetrous, tightly enclosed by the involucral bracts; style slenderly 
2-cleft, stigmatic on the edges for the entire length: disk flowers: the 
5 disk flowers separated from the ray series by 5 united bracts: achenes 
short and sterile, bearing a paleaceous pappus 1.5™™ long: corolla 
tubular, 4™™ long, bearing 5 yellowish teeth: filaments half as long 
as anthers, separately inserted upon the corolla; anthers 2™™ long, 
with constricted triangular apices: style cleft, the lobes pe 
ciliate. 
Quite plentiful in dry half sandy soil, Santa Hdshass, Santa Barbara 
county, California, August 1902. oa specimen, no. 3839, in Herb. Stanford 
University. 
Machaeranthera pinosa, n. sp:—Densely tufted perennial, 1.5 ¢™ 
high: underground stems numerously branched, those above ground 
rather rigid, brown, with a short cinereous pubescence, usually divari- 
cately 3-branched from a little above the middle, basal portion 
marked with ring-like scars caused by the early falling of the radical 
leaves: basal leaves dry and brittle, those above the middle of the 
stem 3-5°™ long, linear-oblanceolate, densely cinereous pubescent on 
both sides, usually conduplicate above the middle, sessile though the 
lower half is narrow and petiole-like, minutely dentate, the teeth 
terminating in short and sharp-pointed hyaline spinules; upper 
leaves bract-like, broadest below the middle: heads turbinate, 1°™ 
high, solitary or upon bracteate brown glandular pubescent peduncles 
4°™ long: involucral bracts imbricate, very unequal, mostly linear, 
acutely pointed, the exposed surface glandular, the inner surface 
straw-colored or purplish-blue: corolla of ray flowers 22™™ long, 
tube minutely pubescent, 12™™ long, gradually expanding into the 
rich purple-blue broadly spatulate minutely 3-toothed ligule: pappus 
-in one series, 12™™ long, scabrous, reddish-brown, very unequal: 
corolla of disk flowers 0.75™™ long: stamens with anthers 3™™ long 
Mo. Boat. Garden 
1905 
