118 ERYTHEA. 



E. Evioryi appears to be little understood. To it in most cases is 

 referred any specimen belonging to this section, which lacks 

 radial spines. 



Cereus gummosus Engelm. in Brandg,, Proc. Cal. Acad., ser. 2, 

 ii, 162 and Zoeii, 20. Cereus Cumengei Web. Bull. Mus. Hist. Nat- 

 1895, p. 2 (reprint). C. flexuosus Engelm. MSS. in Coult. 1. c. iii, 

 411. The flower of this species is thus described by Dr. Weber: 

 "Flower nocturnal, large 25 cm. long by 10 cm. broad, lively rose- 

 color without, white within." Mr. Brandegee described it as "four 

 to five inches in length, purple." In examining it this year at San 

 Jose del Cabo, he found that his memory had been at fault — that it 

 was purplish outside, creamy white somewhat tinged with rose 

 inside.* 



Cereus striatus, Brandg. Zoe ii, 19, and Proc. Cal. Acad. ser. ji, 

 163. "Cereus sp. small, vine-like, with neither flowers nor fruit. — 

 Santa Margarita and Magdalena Islands."! Cereus Digueti Web. 

 Bull. Mus. Hist. Nat. 1895 p. 4 (reprint). At the time of original 

 publication Mr. Brandegee did not know, that this species had 

 tuberous roots. He observed them the following year, and plants 

 have been growing in our garden since 1894, but have not yet 

 flowered. Professor Coulter says^the flowers are purple, but does not 

 give the source of his information. Mr. Brandegee had seen only 

 dried remains of the flowers. Dr. Weber says, "According to M. 

 Diguet, the flowers are nocturnal, white, about 15 cm. long." He 

 compares the tubers to a bunch of dahlia roots. Mr. OrcuttJ con- 

 siders this species identical with, or only a form of, C. tuberosus 

 Poselger; in this he is, however, certainly in error. 



Cereus Brandegei Coult. 1. c. 389, was recently brought in 

 living specimens from San Juanico, by A. W. Anthony. To this, 

 as far as can be made out from the fragment^ belongs C. Sanbor- 

 gianus Coult. 1. c. 391. Captain Porter has brought from La Paz 



* Since the foregoing was in type C ffwmmosus has flowered in our 

 garden on a cutting brought from Cedros in July. It is nocturnal, 13 

 cm. long, creamy-white, the cylindrical tube and sepals brownish-purple. 



fDr. Edward Palmer, just returned from Topolobampo, brings me 

 from that place a specimen of Cereus striatus. He reports it also as 

 growing at the old "Eancho de Guaymas" a few miles from the city. 



^Review of the Cactacese of the United States, by C. E. Orcutt, San 

 Diego, July 3, 1897. 



