ECHINOCEREUS. 



25 



Collected by Rose and Standley at Big Springs, Texas, February 23, 1910 (No. 12215). 



This is a very beautiful species which flowers abundantly in cultivation. If heretofore 

 collected, it has doubtless passed as the next species to which it is related. Rose and 



Standley, who discovered it wild in 19 10, also found 



it in cultivation in Texas. 



Figure 24 is from a photograph of the type 

 specimen. 



33. Echinocereus reichenbachii* (Terscheck) Haage 

 jr., Index Kewensis 2:813. 1893. 



Echinocactus reichenbachii Terscheck in Walpers. 



Repert. Bot. 2: 320. 1843. 

 Cereus caespitosus Engelmann, Bost. Journ. Nat. Hist. 



5:247. 1845. 

 Echinopsis pectinata reichenbachiana Salm-Dyck, Cact. 



Hort. Dyck. 1844. 26. 1845. 

 Echinocereus caespitosus Engelmann in Wislizenus, 



Mem. Tour North. Mex. no. 1848. 

 Cereus caespitosus castaneus Engelmann, Bost. Journ. 



Nat. Hist. 6: 203. 1850. 

 Cereus reichenbachianus Labouret, Monogr. Cact. 318. 



, l8 53- 

 Cereus reichenbachianus castaneus Labouret, Monogr. 



Cact. 319. 1853. 

 Cereus caespitosus minor Engelmann, Proc. Amer. 



Acad. 3: 280. 1856. 

 Cereus caespitosus major Engelmann, Proc. Amer. 



Acad. 3: 280. 1856. 

 Echinocereus texensis Jacobi, Allg. Gartenz. 24: no. 1856. 

 Mammillaria caespitosa A. Gray, First Lessons in Botany 96. 1857. 

 Echinocereus rotatus Linke, Wochenschr. Gartn. Pflanz. 1: 85. 1858. 

 Echinocereus caespitosus castaneus Riimplerin Forster, Handb. Cact. ed. 



2. 811. 1885. 

 Echinocereus caespitosus major Riimpler in Forster, Handb. Cact. ed. 2. 



811. 1885. 

 Echinocereus pectinatus caespitosus Schumann, Gesamtb. Kakteen 272. 



1898. 



More or less eespitose; stems simple, globose to short-cylindric, 

 2.5 to 20 cm. long, 5 to 9 cm in diameter; ribs 12 to 19; areoles approxi- 

 mate, elliptic; spines 20 to 30, white to brown, but usually those of each 

 individual plant of one color, pectinate, interlocking, 5 to 8 mm. long, 

 spreading, more or less recurved; centrals 1 or 2, like the radials, or 

 often wanting; flowers fragrant, rather variable as to size, often 6 to 7 

 cm. long and fully as broad, opening during the day, always closing at 

 night and sometimes opening the second day, light purple, often re- 

 flexed; perianth-segments narrow, the margin more or less erose; 

 filaments pinkish; fruit ovoid, about 1 cm. long; seeds black, nearly 

 globose, 1.2 to 1.4 mm. in diameter. 



Fig. 24. Fchinoceretis perbellus 



northern Mexico; recorded from 



-Kchinocereus reichen- 

 bachii. 



Type locality: Mexico. 



Distribution: Texas and 

 western Kansas. 



The plant grows in a limestone country, usually among rocks. 



Brandegee in 1876 reported Cereus caespitosus castaneus from 

 the mesas of Saint Charles, south of Pueblo, Colorado, but we Fig. 25. 

 have seen no specimens. The species is not credited to Colorado 

 in recent manuals. We have seen specimens from as far south as Saltillo, Mexico (Runyon, 

 1921). 



Cereus concolor Schott (Pac. R. Rep. 4: Errata and Notes 11. 1856) is referred here by 

 Coulter. The original description indicates a very different plant and it is surprising 



* According to Walpers, the specific name is reichenbachii, but Labouret, when he transferred it to Cereus, changed 

 it to reichenbachianus and this spelling is used in the Index Kewensis where the plant is taken up under Echinocereus. 



ere the binomial is credited to Engelmann. 

 Ih 



