STANDLEY LOCALITIES OF PLANTS FROM NEW MEXICO. 205 



Opuntia filipendula Engelm. Proc. Amer. Acad. 3: 294. 1856. 



"Alluvial bottoms of the Rio Grande, near El Paso." 



In the Cactaceae of the Mexican Boundary the locality is given as "alluvial bottoms 

 of the Rio Grande near Dona Ana." The specimens in the Engelmann Herbarium, 

 wh ; ch appear to be the type, also bear this latter locality written upon their labels, 

 so that the type locality is probably to be considered New Mexican. This Opuntia is 

 common near Dona Ana, growing in the adobe soil of the Rio Grande Valley and in the 

 loamy soil at the edge of the mesa, seldom or never occurring upon the sandy mesa. 



Opuntia hystricina Engelm. & Bigel. Proc. Amer. Acad. 3: 299. 1856. 



"West of the Rio Grande to the San Francisco Mountains," Bigelow. 



In what was intended to be the original publication of this species on page 44 of the 

 Botany of Whipple's Report, we find the statement: "Abundant from the Rio Grande 

 westward to the Ran Francisco Mountains," so that, in all probability, the type was 

 gotten in New Mexico. The San Francisco Mountains are in Arizona. 



Opuntia microcarpa Engelm. in Emory, Mil. Recon. 157. /. 7. 1848. 



"Very abundant on the Del Norte and Gila," Emory in 1847. 



This is another of the cacti that Doctor Engelmann described from Stanly's draw- 

 ings and one regarding whose identification there must always be uncertainty. In 

 his description Doctor Engelmann writes as follows: "Joints 1J to 2\ inches long and 

 little less wide; berries obovate, scarlet, only about 3 or 4 inches long. If the figure 

 represents the natural size, this species ought to bear the name . microcarpa." There 

 is evidently some mistake in the statements about the proportions of the drawing. 

 Of course it was less than natural size, and this explains the small size of the joints; 

 but Doctor Engelmann must have made a slip of the pen in giving the relative dimen- 

 sions of the fruit. Probably the description was intended to read "3 or 4 lines long." 

 The drawing, the writer feels sure, represents the plant from southern New Mexico 

 that has passed as 0. engelmanni cyclodes, for no other species of the region has the 

 habit shown in the figure. Opuntia engelmanni cyclodes, too, is common in the region 

 described. It is true that its fruits are not scarlet, but I am not acquainted with any 

 Opuntia of this type that has scarlet fruits, and there might easily have been a mistake 

 in the shade of red assigned to the fruit. 



Opuntia missouriensis trichophora Engelm. Proc. Amer. Acad. 3: 300. 1856. 

 =0. trichophora (Engelm.) Britton & Rose. 

 "On the mountains near Albuquerque," Bigelow in 1S53. 



Opuntia phaeacantha Engelm. in A. Gray, Mem. Amer. Acad. II. 4: 52. 1849. 



"On rocky hills about Santa Fe and on the Rio Grande," Fendler 250, in May and 

 June, 1847. 



The plant might have been collected almost anywhere about Santa Fe, for it is 

 everywhere common, both upon the mesa and in the foothills. 



Opuntia phaeacantha major Engelm. Proc. Amer. Acad. 3: 293. 1850. 

 "In mountainous regions near Santa Fe." 



Opuntia sphaerocarpa Engelm. Proc. Amer. Aead. 3: 300. 1856. 



"On the eastern declivity of the Sandia Mountains near Albuquerque," Bigelow 

 in 1853. 



Apparently this plant has not been collected since. 



Opuntia stanlyi Engelm. in Emory, Mil. Recon. 157./. .9. 1848. 



This was collected by Emory on October 22. On this date he traveled along the 

 Gila just on the present line between New Mexico and Arizona, so the plant may 

 have been collected in either Territory. Doctor Engelmann says, quoting from the 

 collector's notes: "Abundant on the Del Norte and Gila." Theformerof these local- 

 ities must be wrong, for what is taken to be this plant, the only Opuntia of the type 



