1913] : FREEMAN—TEPARY 411 
Professor J. J. THORNBER. In the following table these are com- 
pared with similar measurements of the tepary and the tracing 
of the broad-leaved variety furnished by Dr. Roprnson. The 
measurements of the tepary were made from 100 mature leaves, 
taken at random from some 30 varietal plots during August rorr. 




TABLE IV 
Phaseol Gray’s unnamed 
acutifolius Tepary variety 
Length terminal leaflet......... 40-46 mm, | 40-95 (av. 64) mm. | 56-71 mm. 
Width terminal leaflet.......... 16-21 22-52 (av. 37) 22-41 
Length lateral leaflet........... 30- 38-78 (av. 56) 42-52 
Width lateral leaflet........... 12-23 20-50 (av. 33) 23-38 
Length terminal petiolule....... 8-13 16-34 (av. 22) 11-18 
Mength petioles... 5. 30-40 20-100 (av. 68) 25-46 


It may now be noted that the tepary leaves are decidedly 
larger and broader than those of the type of P. acutifolius, and that 
in the length of the petiolule of the terminal leaflet they far exceed 
the specific type. In most of these characters, moreover, they 
exceed the measurements of GRAy’s unnamed variety. It must be 
remembered, however, that of this latter there is but one specimen, 
and that upon it there is only one well matured leaf whose measure- 
ments are the maximum given. In view of the above careful 
comparisons but one conclusion seems possible. The tepary an 
RAY’s unnamed broad-leaved variety are identical. Thus, in 
their broad leaves and robust growth they exhibit the opposite 
extreme of variation from the type of P. acutifolius that P. acuti- 
Solius var. tenuifolius does in the direction of narrow leaves and 
slender habit. Gray’s mention of this broad-leaved variety 1s 
as follows: mee 
P. AcuTIF : . foliolis majoribus ovatis acuminatis, egumine 
eae te polar) Valles of Staak: Sept. (949).—Plantae Wrightianae 
2333). 
Although Gray recognized it as a distinct variety, his failure to 
give it a name and more careful description is probably pe wee 
fact that he had only one specimen. This lack of material os 
how able to supply. I feel, therefore, that I am safe in ag 
to the species of Phaseolus which are used as esculents the name of 
