ECHINOCEREUS. 23 



Type locality: Hills near San Jose del Cabo, Lower California. 



Distribution: Southern end of Lower California. 



This species was first collected by Mr. T. S. Brandegee near San Jose del Cabo, Lower 

 California, in April 1897, and described by Mrs. Brandegee in 1904 as a new species of 

 Cereus of the subgenus Echinocereus. 



In 191 1 Dr. Rose re-collected it in some abundance at the type locality, and living 

 plants were grown in the cactus collections in New York, Washington, and St. Louis. So 

 far as we are aware it is not offered in the trade and is rare in living or herbarium collections. 

 It has been collected in recent years also by Dr. C. A. Purpus and the name Echinocereus 

 sciurus was incidentally used in referring to his collection (Monatsschr. Kakteenk. 14: 130. 

 1904). 



Plate iv, figure 1, shows a plant collected by Dr. Rose at San Jose del Cabo, Lower 

 California, in 191 1. 



29. Echinocereus cinerascens (De Candolle) Rijmpler in Forster, Handb. Cact. ed. 2. 786. 1885. 



Cereus cinerascens De Candolle, Mem. Mus. Hist. Nat. Paris 17: 116. 1828. 

 Cereus cinerascens crassior De Candolle, Mem. Mus. Hist. Nat. Paris 17: 116. 1828. 

 Cereus cinerascens tenuior De Candolle, Mem. Mus. Hist. Nat. Paris 17: 116. 1828. 

 Cereus deppei Salm-Dyck, Hort. Dyck. 338. 1834. 

 Cereus cirrhiferus Labouret, Monogr. Cact. 311. 1853. 



Echinocereus cirrhiferus Riimpler in Forster, Handb. Cact. ed. 2. 778. 1885. 

 Echinocereus glycimorphus Riimpler in Forster, Handb. Cact. ed. 2. 800. 1885. 

 Cereus glycimorphus Orcutt, Seed PI. Co. Cat. Cact. 5. 1903. 



Growing in patches 6 to 12 dm. broad, branching at base, the stems ascending to about 3 dm.; 

 ribs about 12, not very prominent, obtuse; areoles rather scattered, orbicular; spines white or pale, 

 straight, rough, 1.5 to 2 cm. long; radials about 10; centrals 3 or 4; flowers, including ovary, 6 to 8 

 cm. long, the tube very short; scales on ovary and tube small, acute, their axils crowded with short 

 white wool and 6 to 8 long white bristles; inner perianth-segments, when dry, deep purple, 3 to 4 cm. 

 long, obtuse; stamens short; fruit not seen. 



Type locality: Mexico. 



Distribution : Central Mexico. 



Cereus acinijormis (Pfeiffer, Enum. Cact. 101. 1837) is only a garden name supposed 

 to be the same as Echinocereus cinerascens var. crassior (Riimpler in Forster, Handb. Cact. 

 ed. 2. 787. 1885). 



Echinocereus dcppci, unpublished, belongs here according to Schumann (Monatsschr. 

 Kakteenk. 5: 123. 1895). Echinocereus cirrhiferus monstrosus is an abnormal form. 



Echinocereus glycimorphus was described from a sterile plant of unknown origin, 

 obtained of F. A. Haage jr. of Erfurt; it was redescribed by Schumann, who cites definitely 

 Mathsson's plant from Hidalgo between Ixmiquilpan and Cardonal, but whether this 

 latter plant is the type or not is uncertain. Schumann made for it a subseries Oleosi of 

 which it is the only species. 



We feel justified in reducing E. glycimorphus to E. cinerascens; we have living plants 

 of both from the Berlin Botanical Garden and they must represent essentially the same 

 species, while the differences pointed out by Schumann seem trivial. Not only have we had 

 Echinocereus cinerascens from various authentic sources, but Dr. Rose has repeatedly 

 obtained it from the Valley of Mexico and adjacent regions. The plant is of wide distribution 

 and has been reported from farther south than any of the other species of this genus. 



Echinocereus undulatus Hildmann (Schumann, Gesamtb. Kakteen 261. 1898) is only 

 a catalogue name for it. 



Illustration: Monatsschr. Kakteenk. 14: 137. 



30. Echinocereus adustus Engelmann in Wislizenus, Mem. Tour North. Mex. 104. 1848. 



Echinocereus rufispinus Engelmann in Wislizenus, Mem. Tour North. Mex. 104. 1848. 

 Echinocereus radians Engelmann in Wislizenus, Mem. Tour North. Mex. 105. 1848. 

 Cereus adustus Engelmann in Gray, PI. Fendl. 50. 1849. 

 Cereus rufispinus Engelmann in Gray, PI. Fendl. 50. 1849. 



