406 BOTANICAL GAZETTE [NOVEMBER 
countries farther south, which were undoubtedly the original 
home of the less drought-resistant P. vulgaris and P. lunatus. 
I have been unable to secure descriptions of all of the wild species 
reported from Mexico and Central America, but the specific 
characters of the greater part of the list has been gone over very 
carefully. 
Phaseolus brevicalyx Micheli (Mém. Soc. Phys. Genéve 34: 26r. 
pl. 12. 1903) is a close relative of the tepary. The latter differs 
from this species, however, in being glabrous or only slightly puberu- 
lent, while P. brevicalyx is described as pilose. It further differs 
strongly in the following points: petioles 2-10 cm. long (average 
6.8cm.) rather than 1-3 cm., stipules lanceolate and appressed 
rather than broadly ovate and spreading, calyx never punctate 
with black spots. 
The description of P. proriferus M. E. Jones, though very 
incomplete, indicates that this also is a near relative of the tepary, 
but it seems to differ from the tepary in being more robust and in 
the rhombic-ovate, abruptly acuminate leaflets. 
The following description of P. acutifolius Gray’ seems to agree 
with the tepary in every particular: 
- ACUTIFOLIUS, sp. nov.—Volubilis; ramis gracillimis puberulis; foliolis 
subovato-lanceolatis e basi ad apicem usque attenuatis acutis integerrimis 
scabrido-puberulis; pedunculis paucifloris folio brevioribus, bracteis bracte- 
olisque subulatis minimis deciduis; pedicellis flore aequilongis; calyce pro- 
funde bilabiato, labio superiore vix emarginato dentibus lateralibus et infimo 
ovato-oblongis subaequalibus tubo paulo brevioribus; legumine compress 
lato-lineari falcato pubescente; seminibus complanatis leviter rugosis.— 
Mountain valley 30 miles east of El Paso; Sept.—Plant in general aspect and 
foliage much resembling a slender narrow-leaved variety of P. helvolus; but 
the leaves are more tapering and pointed; the 2-3-flowered peduncles are 
shorter than the leaf, and seldom longer than the common petiole; and the 
pedicellate flowers are smaller than those of P perennis. It belongs to the 
section DREPANospRON, having a flat and falcate legume, not much curved, 
two inches long, a quarter of an inch wide, 8—9-seeded. Seeds oval, compressed, 
somewhat shining, lightly Tugose. The leaflets are from one to two inches 
long, varying from ovate-lanceolate to lanceolate from a broad base. 
Specimens of the tepary have been submitted to Dr. J. N. ae 
who states in a letter: “I quite agree with you that your Indian 
7 Gray, Asa, Plantae Wrightianae. pp. 43, 44. 
