LEGUMINOSAE 
Oxytropis sp. 
Seedpods of this plant were found in stratum V. 
RUTACEAE 
Ptelea sp. 
A single specimen belonging to the genus Ptelea oc- 
curred in stratum V. 
RHAMNACEAE 
Rhamnus sp. 
Stratum V also yielded one specimen of the genus 
Rhamnus. 
CACTACEAE 
Opuntia sp. 
Numerous joints of prickly pear were found through- 
out the deposit from stratum [II upward. 
ASCLEPIADACEAE 
Asclepias sp. 
Milkweed stems and pods were found in quantity in 
strata V and VI. 
SOLANACEAE 
Lycium sp. 
Desert-thorn is represented by leaf remains from strata 
IV, V and VI, and by twigs from stratum IV. 
LABIATAE 
Monarda sp. 
Several fruiting heads of this plant came from stratum 
"4 & 
[ 173 ] 
