. Morphology of gymnosperms. Gymnosperms; Plant morphology. CONIFERALES (PINACEAE) 247 bore axillary ovuliferous scales as in the normal cone. He concluded that stamens are to be homologized with the bracts of the ovuliferous cone, and that the ovuliferous scales are axes of the next higher order. Simi- lar cones have been reported by Shavv^ (42) from Sequoia, and by Goebel (58) from Pinus. For some, such illus- trations settle the sporophyll charac- ter of the bract in both cones, and to them the bract of the ovulate cone is a carpel. In i860, also, Caspary (8) con- firmed Braun's conclusion,


. Morphology of gymnosperms. Gymnosperms; Plant morphology. CONIFERALES (PINACEAE) 247 bore axillary ovuliferous scales as in the normal cone. He concluded that stamens are to be homologized with the bracts of the ovuliferous cone, and that the ovuliferous scales are axes of the next higher order. Simi- lar cones have been reported by Shavv^ (42) from Sequoia, and by Goebel (58) from Pinus. For some, such illus- trations settle the sporophyll charac- ter of the bract in both cones, and to them the bract of the ovulate cone is a carpel. In i860, also, Caspary (8) con- firmed Braun's conclusion, citing specimens in which branches occurred in the axils of the bracts, and bore the two halves of the ovuliferous scale as lateral append- ages. In 1864 Parla- TORE recorded (12) a cone of Pinus Pinaster (P- Lemoniana) in which an ordinary dwarf shoot with its two needle leaves sprang from the axil of every alternate bract, replacing the ovuliferous scale. His conclusions naturally accorded with those of Fig. 272.—Araucaria excelsa: ovulate cone from a tree in the plaza at Jalapa, Mexico; one-half natural Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Coulter, John Merle, 1851-1928; Chamberlain, Charles Joseph, b. 1863; Coulter, John Merle, 1851-1928. Morphology of spermatophytes. Part I. Gymnosperms. Chicago, University of Chicago Press


Size: 1216px × 2055px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, bookpublisherchicagouniversityo