14 



THE .CACTACEAE. 



red plate 4084 of Curtis's Botanical Magazine with the name Cereus pitajaya, althot 



owers are smaller and the inner perianth-segments are more serrate. 



While this species is somewhat similar to the common low Cereus pernamhucensis 



flowers. 



metei-s. and has much 



pcciosus (Pfeiffer, Enum 



hilis by both Pfeiffer and Riimpler. 



1837) is referred to Cereus varia- 



(Salm-Dyck, Cact. Hort 



iim 



dens are also referred here. 



English 



Dyck, var. salm-dyckianus , and var. obtusus are all 



Salm-Dyck, var. /a^/a'^V^n^Salm-Dyck, var. micracanthus Salm 



277. 



synonyms 



Walpers (Repert. Bot. 2: 



name 



Cereus obtusus. 



49. 1850) are 

 Succ. 76. 1819 

 ret, Monogr. C 



to 



names 



(Salm-Dyck, Cact. Hort. Dyck. 1849. 



Haworth (S 



PI. 



1853)- 



Salm-Dyck and ramosior Salm-Dyck Ctahou 



pnsmatijonnis, C. hexangularis, and C. affinis (Pfeiffer, Enum 



synonyms 



1837) 



Illustrations: Pfeiffer, Abbild. Beschr. Cact. 2: pi. 



Flum 



15, 



variabilis; Vdlozo, 



Fig. 



'■^- Cereus pernamhucensis 



pemambucensis 



^Cereus klragonus minor Salm-Dyck, Hort Dvri- ,,, 

 Cereus formosus Forstcr, Haudb Cact 404 \ 846 ^' 



1839. 



1834. 



in« a„d^" S„l'" tny- T^f^Z^ ^'S^-^ then so^eti^es 4 to , ™et„s broad, creep- 



fhict ' "''',■ Pf ' «'''^™' '*""=t™^^ nearifwlS ''"^s^l.J-'S^"^'-- ,';™"^hcs usually short, with 3, 

 thick; arcoks large, 1.5 to 2 cm amrf %,. r .'t Promment, often strongly crcnate anri verv 



■^I'^I^fll^etween^ihs 'of youn^" hrracu\e'' tepTlr",';' f ",T* ^'^^ short w,re'«;"^ 



— -- ^!^^ff^^>trt™j^^^ broad and shallow ; spines 4 



•Onsinally, but erroncou^i;:;^;;;;!^:;;;^;:;;,;;;^^ 



>^ 



■t.' 



^1 







1 



^-^ 







.'J 



