Tab. 5360. 

 CEREUS pterogonus, Lem. 



Wing-angled Cereus. 



Nat. Ord. Cactace,£. — Icosandria Monogynia. 



Gen. Char. Perigonii tubus ultra germen longe productus, pulvilligerus; 

 phylla numerosissima ; sepaloidea infima squamEeformia, superiora elongata, spi- 

 rahter imbricata, in axillis ssepissime seti- vel aculeifera, petaloidea longiora plus 

 mmusve recurvato-patentia, corollam infundibuliformem semulantia. Stamina 

 numerosissima, basi tubo adnata, superne libera, limbo breviora. Stylus filifor- 

 mis, stamina vix superans. Stigma multiradiatum, radiis linearibus. Bacca 

 squamata aut tuberculata, pulvilligera. Cotyledones libera?, foliacege.— Caulis 

 carnosus, atate indurescens, brevis vel elongatus costatus vel angulosus, pulvilligerus, 

 crassus v. tenuis, erectus vel reptans, continuus vel articulatus, simplex vel ramosus'. 

 Flores laterales, sapissime nocturni, epkemeri, aut aliquot dies aperti. Salm-Dyck. 



Cereus (§ Radicantes) p terogonus ; caule e basi ramoso ramisque articulatis 

 laete viridibus divaricatis rigidissime humi adpressis, radicantibus 4-5-angu- 

 latis, costis compressis acutatis inter pulvillos obrepandis, lateribus superne 

 excavatis inferne planiusculis, pulvillis immersis valde confertis parvulis vix 

 tomentosis, aculeis 3-4 aciculatis rigidis fulvidis summo ssepe longiore, cum 

 setaceis quibusdam deciduis. Salm. Dyck. 



Cereus pterogonus. Salm-Dyck, Cact. Hort. Dyck. pp. 52, 221. 



We cannot but be glad to see the encouragement given to the 

 cultivation of succulent plants in some of the late numbers of the 

 1 Gardeners' Chronicle.' As a general collection of such plants, and 

 for the interest felt in them by the public, we may confidently 

 refer to the " Succulent House," in Kew Gardens, which I be- 

 lieve stands unrivalled in Europe. There are among them the 

 most strange and varied forms, especially of the Cactus group, 

 and it is well known that the genus Cereus, one of which we 

 have now under consideration, affords the most magnificent 

 blossoms, frequently of the most gorgeous colours, of any in 

 nature. 



The flowers of Cereus pterogonus, if not equal in size or in 

 beauty to those of Cereus Macdonaldice (see our Tab. 4707) have 



FEBRUARY 1ST, 1863. 



