( 4066 ) 



Cereus extensus. Long-stemmed Cereus; 

 or Torch-Thistle. 



********************* 



Class and Order. 



ICOSANDRIA MONOGYNIA. 



( Nat. Ord.— -Cactejs. ) 



Generic Character. 



Sepala numerosissima imbricata,, basi ovario adnata, in 

 tubum elongatum concreta, exteriora breviora calyciualia, 

 media Iongiora colorata, intima petaliformia. Stamina 

 numerosissima cum tubo concreta. Stylus filiformis, apice 

 multifidus. Bacca areolata, sepalorum reliquis squamata 

 aut tuberculosa. Cotyledones acuminata?. — Frutices car- 

 nosi, subglobosi vel elongati, stricti, articulati vel repentes 3 

 axi ligneo interne medullifero donati, angulis verticalibus, 

 spinarum fasciculos gerentibus vel inermibus regulariter 

 sulcati. Anguli seu alas nunc plurimce nunc paucissimcSy 

 rarius dual tantum t et tunc rami compresso-alati inermes. 

 Flores ampli e spinarum fasciculis lateralibus trunci aut 

 ramorum vetustiorum 3 aut crenis angulorum orti. Fructus 

 oviformes, plerumque anno sequente maturescentes, edules. 

 P feW 



Specific Character and Synonyms. 



Cereus extensus; longissime articulatus radicans viridis 3- 

 angularis, angulis repandis obtusis, areolis remotis 

 nudiusculis, aculeis brevissimis rectiusculis 2 — 3, setis 

 paucis deciduis, flore magno, tubo cylindraceo squa- 

 mato, squainis magnis coloratis sensim in sepala et 

 petala transeuntibus. 



Cereus extensus. Salm Dyck in De Cand. Prodr. 3. p. 

 469. « Wendland in Otto's G Z. 1836. n. 39. S. 

 306." Pfeiff. Enum Cact. p 119. 



Cereus squamatus. Pfeiff (in Otto's G. Z. n. 48. S. 



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VOL XVII B 



