204 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Mamillaria papyracantha Engelm. in A. Gray, Mem. Amer. Acad. II. 4: 49. 1849. 



=Echinocactus papyracanthus Engelm. 



"In a valley between the lower hills, near Santa Fe, in loose, red sandy, though 

 fertile soil, found only once," May, 1847, Fendler 245. 



Mamillaria vivipara radiosa borealis Engelm. Proc. Amer. Acad. 3: 269. 1856. 

 = Mamillaria radiosa Engelm. 

 "Northern New Mexico." 



Mamillaria vivipara radiosa neomexicana Engelm. Proc. Amer. Acad. 3: 2(19. 

 1856. 



'" From western Texas to New Mexico." 



The New Mexican plant must have been intended as the type, else the varietal 

 name would not have been assigned it. 



Mamillaria wrightii Engelm. Proc. Amer. Acad. 3: 2fj2. 1856. 

 "Near the copper mines," Wright in 1851. 



Opuntia angustata Engelm. Proc. Amer. Acad. 3: 292. 1856. 

 "Foot of the Inscription Rock near Zuni," Bigelow in 1853. 



Opuntia arborescens Engelm, in Wisliz. Mem. North Mex. 90. 1848. 



"Mountains of New Mexico," Wislizenus in 184(1. 



Doctor Engelmann in his description speaks of the specimens from Wagon Mound, 

 which are probably to be taken as the type. In his journal on June 23 Doctor Wis- 

 lizenus says: "* * * the so-called Wagon Mi iu ml * * * I ascended as far as 

 the rocks would allow. On the Wagon Mound I found for the first time a specimen 

 of the Opuntia arborescens (Eng.), so common throughout New Mexico, and whose 

 porous stems are used in the South as torches." This cane cactus, as it is commonly 

 called, though sometimes relas de coyote, is prominent everywhere on the plains in 

 this part of New Mexico. 



Opuntia brachyarthra Engelm. Proc. Amer. Acad. 3: 302. 1850. 



"At the foot of the Inscription Rock near Zuni, under pine trees," Bigelow in 1853. 



Opuntia clavata Engelm. in Wisliz. Mem. North. Mex. 95. 1848. 



"About Albuquerque," Wislizenus in 1846, on the plains east of the city, no doubt 

 for the plant is most abundant there. 



Opuntia cymochila montana Engelm. Proc. Amer. Acad. 3: 296. 1856. 

 "On the Sandia Mountains, near Albuquerque," Bigelow in 1853. 



Opuntia davisii Engelm. & Bigel. Proc. Amer. Acad. 3: 305. 1856. 



"On the Upper Canadian, eastward and westward of the Tucumcari hills," Bigelow 

 in 1853. 



If this was described from plants collected to the westward of the Tucumcari hills, 

 it certainly has its type locality in New Mexico. If it came from the eastward, it 

 may have come from New Mexico or from the Panhandle of Texas. The specific 

 name was given in honor of Col. Jefferson Davis, then Secretary of War. 



Opuntia dillei Griffiths, Rep. Mo. Bot. Gard. 20: 82. pi. 4. lower/., pi. %. f. 10, 

 pi. Li. J. 7. 1909. 

 "San Andreas Canyon of the Sacramento Mountains," David Griffiths 9460, in 1908. 



Opuntia engelmanni cyclodes Engelm. Proc. Amer. Acad. 3: 291. 1856. 



"About the mouth of the Gallinas into the Pecos, near Anton Chico," Bigelow 

 in 1853. 



No one since Bigelow has visited this locality in search of plants. 



