. Carnegie Institution of Washington publication. 184 THE CACTACEAE. KEY To SPECIES—continued. A. Areoles spinifcrous; ribs not deeply crenate— continued. BB. Stems blight green. Margin of stems horny. Kilps of stem l)io;nl, thin, crenate Ribs of stem thick, scarcely crenate Margin of stem1' not horny. Stigma-lobes branched or forked. Spines several; margins of stem nearly straight; stigma-lobes branched. Spine one; margins of stem undulate; stigma-lobes forked (at least some- times) Stigma-lobes (so far as known) entire. Perianth-segments red or reddish puiple. Ribs thin, almost wing-like; pe
. Carnegie Institution of Washington publication. 184 THE CACTACEAE. KEY To SPECIES—continued. A. Areoles spinifcrous; ribs not deeply crenate— continued. BB. Stems blight green. Margin of stems horny. Kilps of stem l)io;nl, thin, crenate Ribs of stem thick, scarcely crenate Margin of stem1' not horny. Stigma-lobes branched or forked. Spines several; margins of stem nearly straight; stigma-lobes branched. Spine one; margins of stem undulate; stigma-lobes forked (at least some- times) Stigma-lobes (so far as known) entire. Perianth-segments red or reddish puiple. Ribs thin, almost wing-like; perianth-segments linear Joint? angular, not winged; inner perianth-segments oblanceolate Inner perianth-segments white. Scales on the ovary few and scattered Scales on the ovary brown, large, imbricated. Joint-angles strongly tubercled Joint-angles scarcely tubercled or not at all. Joints somewhat crenate Joints not crenate AA. Areoles without spines; ribs very deeply crenate 7. II. undatus 8. H. cubensis 9. //. lemairei 10. H. monacanlhus 11. 77. stenopterus 12. H. exlenstis .1,5. II. >ni/)i>leonis . 14. 77. trigonus .15. H. triangular is . 16. 77. anliguensis .17. 77. calcaratus 1. Hylocereus guatemalensis (Eiehlam). (.'i-rfiis trigonus guatemalensis Eiehlam, Monatsschr. Kakteenk. 21: 68. 1911. Stems high-climbing, 3 to 5 meters long, stout, mostly 3-angled, 2 to 7 cm. broad, the basal parts often narrow or nearly terete; joints beautifully glaucous or in time becoming more or less greenish; ribs low-undulate, the margins horny, not at all glaucous; areoles 2 cm. apart or less; spines 2 to 4, 2 to 3 mm. long, conic, dark, but on seedlings numerous and bristle-like; flowers 3 dm. long; outer perianth-segments rose-colored, acuminate; inner perianth- segments lanceolate, acute, white; style yellow, 7 mm. in diameter; stigma- lobes 25, entire; fruit 6 to 7 cm. in diameter, covered with large scales; seeds black. Type locality: Guatemala. Distribution: Guatemala. We have
Size: 913px × 2738px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcarnegie, bookcentury1900, bookdecade1900, bookyear1902
