DeEscrIPTION oF TyPpEs 
Pod characteristics are summarized in Table III; the 
types discussed below have been given descriptive names 
and are numbered in sequence with archaeological beans 
described elsewhere (Kaplan, 1956). 
Yellow seeded bush, C 81. The bush habit is indicated 
by remains of two plants with fragmentary fibrous root 
systems diverging from the bases of stems bearing fruit- 
ing branches. The curved pedicels are 0.8—-1.5 em. long 
borne in pairs on 5-6 cm. peduncles. The pods would 
have been borne at 15 to 20 cm. above the soil surface 
and appear to be fewer than 10 per plant, although this 
could be highly variable. This variety was probably har- 
vested by pulling up the entire plant, since many of the 
pods have remained attached to stem sections. In con- 
temporary Mexico, bush beans are frequently harvested 
in this manner; the bundles of dried plants are stored in 
or near the habitation and threshed by beating on a mat as 
opportunity or need arises. The yellow to yellow-tan 
color of the rare seed coat fragments associated with the 
pods represents possibly a change in hue from cream. 
This group includes thin-walled variants probably 
picked when young. Thick-walled variants are more 
common, particularly in the San Antonio phase; 20 of 
26 fragments in one San Antonio packet are thick-walled. 
It is not possible to say whether this is a genetic varia- 
tion or the result of growing conditions. Lesions which 
appear to be anthracnose (Colletotrichum Lindemuthia- 
num) injuries are found occasionally on all types but are 
abundant on the thick-walled variants. 
Black seeded bush, C82. The pods are moderately 
curved with thin and relatively non-fibrous walls. In the 
immature condition, the fruits of this type might have 
been useful as snap beans; displacement of the intersti- 
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