. Carnegie Institution of Washington publication. CEREUS. 2 KEY TO GENERA—continued. AA. Flowers i to several at an areolc; columnar cacti, or with columnar branches; flowers small. Flowers without wool; areoles small. Flowering areoles bearing many long bristles 36. Lnphncerftts (p. 177) Flowering areoles without bristles 37. Myrtillorarlus (p. 178) Flowers densely woolly; flowering areoles enormously developed 38. Ncoraimondia (p. 181) 1. CEREUS (Hermann) Miller,* Card. Diet. Abridg. ed. 4. 1754. Piptanlhocereus Riccobono, Boll. R. Ort. Bot. Palermo 8: 225. 1909. Stems mostly upright and tal
. Carnegie Institution of Washington publication. CEREUS. 2 KEY TO GENERA—continued. AA. Flowers i to several at an areolc; columnar cacti, or with columnar branches; flowers small. Flowers without wool; areoles small. Flowering areoles bearing many long bristles 36. Lnphncerftts (p. 177) Flowering areoles without bristles 37. Myrtillorarlus (p. 178) Flowers densely woolly; flowering areoles enormously developed 38. Ncoraimondia (p. 181) 1. CEREUS (Hermann) Miller,* Card. Diet. Abridg. ed. 4. 1754. Piptanlhocereus Riccobono, Boll. R. Ort. Bot. Palermo 8: 225. 1909. Stems mostly upright and tall, but sometimes low and spreading or even prostrate, generally much branched, the branches strongly angled or ribbed; areoles spiny, more or less short-woolly but never producing long silky hairs; flowers nocturnal, elongated, funnelform, the upper part, except the style, falling away from the ovary by abscission soon after anthesis; tube of flower cylindric, expanding above into the swollen throat, nearly naked without; outer perianth-segments obtuse, thick, green or dull colored, the inner thin, petaloid, so far as known white, except in one species and in that red; stamens numerous, varying greatly in length, slender and weak, included; style slender, elongated but often included; stigma-lobes linear; ovary bearing a few scales naked in their axils; fruit fleshy, red, rarely yellow, naked, splitting down one side when mature, often edible; seeds black. Type species: Cactus hexagonus Linnaeus, this being the first species cited by Miller in his Gardeners' Dictionary, 8th edition, 1768, where he described 12 species of Cereus (in the 4th edition, abridged, 1754, he described 14 species), which we now know belong to several genera. The genus Cereus has been understood by authors at one time or another since Philip Miller's time as containing species of nearly all the genera of cacti, including even Rhipsalis and Opuiitia. Schumann, in his monograph, recognized 104 species, t
Size: 1462px × 1709px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1900, bookyear1902
