208 UNITED STATES AND MEXICAN BOUNDARY. 



Tepopote and Cailatillaj and use a decoction of it as a remedy for gonorrhoea. It is a shrub 

 about two feet high with numerous branches, the sheaths of which are shorty 2-3-cleft, the divisions 

 lanceolate or subulate, spreading or recurved, at length deciduous. Sterile aments opposite or 

 aggregated at the nodes. Anthers mostly 4. Fertile opposite, 1-2-seeded. The sheaths of 



vhat fleshy. Seeds smooth, when in pairs flattened 



some 



on the face, when solitary they are larger and obtusely triangular, nearly twice as long as the 

 inner scales • Tube of the micropyle very obliquely truncated. 



There are numerous specimens in the Mexican Boundary Collections, of an Ephedra, found at 

 Frontera and near Dona Ana, which may be a distinct species, but I suspect it is an abnormal state 

 of E. antisiphilitica. It is a shrub of 3 to 5 feet in height. The fertile aments are ovate-oblong, 



and instead of four decussating pairs of connate thickish, or at length succulent scales, there 

 are from 16 to 20 very broad, entire^ thin and membranaceous scales, which are distinct, contracted 

 into a short stipe at the base, and irregularly inserted on the axis. They are at first loosely 



1 



mbricated^but 



(immature) 



point, and except the long obliquely truncated micropyle, is wholly covered with the scales, 



Another Ephedra occurs at FronteraS; and it has also been found at Ojo de Yaca in Chihuahua, 

 by Mr. Thurber. It resembles the one just noticed, but the scales^ though equally numerous 

 and arranged in the same manner, are smaller and less membranaceous. They are also minutely 

 erose- serrulate. The seeds, however, are roughened with minute points which are sometimes 

 disposed in short transverse rows, so that, unless pretty highly magnified, they look like 



wrinkles of the testa. The micropyle is conspicuously exserted beyond the scales. There are 

 usually but two seeds in each fertile ament, but not unfrequently three. The arrangement of 



the scales of the fertile aments in these two Ephedr^e is so much at variance with the character 

 of the genus, that it seems most probable they are abnormal forms. 



PiNUS EDULis, Engelm. in Wisliz. Rep. p. 88 ; Ton\ in Bot, Sitgr. Rep. p. 173, t. 20, & in 



Rot. WhippL Rep. p. 140. P. Fremontiana, Gord, in Jour. Hort. 8oc. Loud. 4, p. 293, cum 



Mexico 



' excl. Syn. Endl. & Torr. Mountains of western Texas, near the Rio Grande, New 

 Chihuahua, and Sonora. (No. 1889, Wright ; No. 830, Fendler ; New Mexico,) The 

 cones and nuts greatly resemble those of the next species. The leaves are almost always in 

 pairs, very rarely in threes. Gordon, in the work just quoted, refers this species to P. mono- 

 pbylla, Torr, & Frem.^ the name of which, he says, was changed to P. Fremontiana by Pro- 

 fessor Endlicher, {Syn. Conif. p. 183,) because that botanist having '^afterwards examined more 

 perfect specimens, found that the leaves were in twos and threes, and that the solitary leaves 

 arose from Dr. Torrey's specimens being gathered from stunted plants/' Now, we find that 

 Endlicher in his Synop. Conif. has no remarks of this kind. His entire description is taken 

 from mine in Fremont's 2d Eeport ; but he regards what I call a single leaf, as consisting of 

 two united leaves. Col. Fremont found extensive forests of the tree in his first expedition, as 



well as in his journey of 1853-'54. 



Whippl 



mountains 



o 



Report of that expedition. The characters appearing to be so constant, I retain the species, and 

 wait for additional observations on the plant in its native places of growth. It would be de- 

 sirable, also, to test the constancy of the species by cultivation. Gordon's figure (1. c.) repre- 

 sents the ordinary state of P. edulis. 



Pmrs Llaveana, Scheide d Deppe in Linncea, 12, p. 488. P. cembroides, Neidberryy in Pacif. 



