VOL. 5] Plants of Sinaloa. 2 241 
This species differs from G. hypoleuca, in the arrangement of 
the inflorescence, its broader, nearly hemispherical, tomentose 
involucres, size and shape of the akenes. Collected on rocky 
oe of mountains near Tehuacan, Puebla, June, 1905. No. 1164. 
Pinaropappus spathulatus. Stems glabrous, weak, sparingly 
branched, several from a perennial root, leafy below, 10-15 cm. 
high: leaves thin in texture, spatulate, acuminate, entire or rarely 
slightly sinuate-dentate; blade 5-15 mm. long, 2-4 mm. wide, 
attenuate into a more or less winged petiole 2 cm. long: heads 
less than 1 cm. long, inclined to be nodding; rays 6-7 mm. long. 
In appearance this species is very different from P. roseus. 
The specimens are young and bear no mature fruit. Collected 
near Orizaba. No. 1165. 
PLANTS OF SINALOA. 
BY T. S. BRANDEGEE. 
Pectis repens. Perennial, the few stems prostrate spreading, 
sometimes rooting at the joints, slightly puberulent, 2-3 dm. 
long: leaves in opposite fascicles, 1-2 cm. long, I-2 mm. wide 
mucronate, serrate, long-setiferous below the middle, margins 
I-3 terminal or from short, leafy branches, 1o-12 cm. long, 
4~-5-bracteate: involucre 8 mm. long of 4-5 oval, obtuse, 
glandless scales that are slightly pubescent at the purple 
apex, finely striate, scarious-margined and keeled near the 
base: heads 20-30 flowered: rays 5, linear, 8 mm. long, purple 
on the outside and yellow within; ray-akenes 6 mm. long, pu- 
bescent with crisped hairs, their pappus of two awns abruptly 
dilated at base, as long as the akene and twenty shorter bristles 
of various lengths in 2-3 groups from the inner side: disk flowers 
6 mm. long, bilabiate, one lobe separated nearly to the middle, 
the others united nearly to their tips; pappus about twenty bris- 
tles of different lengths, some longer than the akene, in 3-4 
groups; akenes less pubescent than those of the ray. 
