WOOTON AND STANDLEY FLOEA OF NEW MEXICO. 453 



The plants of this species are used considerably in southern New Mexico and about 

 El Paso, Texas, as a decorative plant in dooryards, especially where water is scanty, 

 and they lend themselves readily to such treatment. They bloom rather late in 

 summer, the blossoms being followed by the scaly yellow fruit which often persists 

 for several years. 



The pulpy interior tissue of these plants is used by Mexican candy makers, who 

 cut it into irregular pieces and candy it by boiling in a saturated sugar solution, mak- 

 ing what they call "cubiertas," or "dulce de viznaga," a most palatable sweetmeat. 



4. Echinocactus papyracanthus Engelm. Trans. Acad. St. Louis 2: 202. 1863. 

 Mamillaria papyracantha Engelm. Mem. Amer. Acad. n. ser. 4: 49. 1849. 



Type locality: In a valley between the lower hills, near Santa Fe, New Mexico. 

 Range: Known only from the type locality. 



The type was collected by Fendler in 1847 (no. 279). Coulter also reports a speci- 

 men collected near Santa Fe in 1882 by Bandelier. 



5. Echinocactus intertextus Engelm. Proc. Amer. Acad. 3: 277. 1856. 

 Type locality: "From El Paso to the Limpio," Texas. 



Range: Southern New Mexico, trans-Pecos Texas, and adjacent Mexico. 



New Mexico: Mesa west of Organ Mountains; Socorro; Organ Mountains; Rincon; 

 Cooks Peak. Dry hills, in the Upper Sonoran Zone. 



This species is a small plant, short-cylindric or globose, 10 cm. high or less and 

 usually about 5 to 7 cm. in diameter, suggesting some of the species of Mamillaria more 

 than Echinocactus. Its spines are white, reddish above, short, about 1 cm. long, 

 numerous, and very closely set, densely covering the plant. The flowers are small, 

 15 to 20 mm. long, with numerous pale pink, acute petals, followed by a small dry 

 fruit. 



The subspecies dasyacantha Engelm. 1 has longer and more erect upper spines. It 

 seems to be merely a growth form. We have seen a specimen of this collected at 

 Rincon by Evans in 1891. 



6. Echinocactus horizonthalonius Lem. Cact. Hort. Monv. 19. 1839. 

 ljhinocactus horizonthalonius centrispinus Engelm. Proc. Amer. Acad. 3: 276. 1856. 

 Type locality: Nut stated. 



Range: Southern New Mexico, trans-Pecos Texas, and Mexico. 



New Mexico: Tortugas Mountain; Guadalupe Mountains; Bishops Cap; Guadalupe 

 Canyon. Limestone soil, in the Lower Sonoran Zone. 



This plant is about spherical, 20 cm. or less in diameter, with 8 to 10 rounded ribs, 

 suggesting a canteloupe in general form. The spines are few, 6 to 9 in cadi areole, 

 stout, compressed, horny, reddish or ashy, recurved, forming a coarse network which 

 sometimes persists and maintains the form of the plant even alter the Bofl parts have 

 decayed; the single central is not hooked. 



The largo, bright pink flowers, imbedded in dense while wool at the base, open in 



bright sunshine and persist for two or three days, partly closing at night and opening 



again in the sunlight, like those of many other cacti. They generally darken as they 



The planl is hard to transplant, unless the soil in which it is placed contains 



considerable lime. The plants usually occur in crevices in limestone rocks. 



7. Echinocactus texensis llopf. Allg. Gartenz. 10: 297. 1842. 



I»i:\ ii. 's lV.i i 9STJ 

 Type locality: Western Texas. 



Range: Southeastern New Mexico and western Texas and northeastern Mexico. 

 \ i u Mexico: Snowies (Wboton). Lower and Upper Sonoran zones. 

 I lepressed hemispheric plants, about 30 cm, in diameter and le than half as high, 

 frequently onlj a little above the level of the • round rather dark green, and w ith 20 



' I .lie. cit. 



