e4 CONTRIBUTIONS TO WESTERN BOTANY 
Aspilia grosseserrata n. sp. No. 27773, La Barranca 
Guadalajara, Nov. 1? 1930. Near A. xylopoda Greenman. Course 
and ereet from a rather woody root, racemosely branched above 
into slender and similarly branched laterals ending in filiform pe- 
‘luucles with narrow bracts, Leaves ovate-lanceolate-acuminate, 
4-5 inches long, 3-nerved above the base, very rough with minute 
wad raised papille which on the nerves end in long and very slen- 
der white hairs. Stems and petioles white-hairy. 1 eaves incise- 
ly and remotely serrate, and the teeth below sometimes becoming 
almost lobes; the lower part of leaves narrowed into a very wide 
and rather eared and sessile base. Upper leaves reduced to near- 
ty linear bracts, Involucral scales in a single series, but the outer 
8 
base and then turning up and nearly as long as the corollas of the 
disk flowers. Ray flowers sterile and the abortive akenes smooth 
‘ 028 not seem tole any o 
diverse, 
Bidens anthemoides (DC.) Sherff. The Laguna Sept:22 1930. 
Nos, 27778 and 27767 Growing in sandy places, a weak and 
widely branched annual, erect, 1-2 ft. hich 
conspicuous yellow flowerz. Leaves about 2 i ’ 
site, petioled, palmately compound and with the secondary divis- 
lons pinnately dissected. Flowers c 
-duncles, 3-6 inches long. Headsabout 1 cm, long and wide, 
with double inyolucre, 
nearly as long as the inner, tapering but obtusish, j i 
tip and smooth, awnless, several- 
Posehn on the outside, lenticular in 
h 
has the appearance of a Bidens but the ray akenes make it a Het- 
erospermum, . 
