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. 2012 Dec 1;7(12):1687–1694. doi: 10.4161/psb.22898

graphic file with name psb-7-1687-g1.jpg

Figure 1. Morphological development of male cones in M. glyptostroboides. (A) In early September, oval, bright green male cones were initiated in the axils of opposite leaves, with 2–4 male cones per leaf pair. (B) In mid-October, the male cones had enlarged and changed in color from green to light yellow, and the twigs had turned brown. (C) In early November, the male floral buds had increased in size and their color had changed to tawny. (DE) In mid-November, the male floral buds continued to enlarge while the leaves had begun to abscise. (FG) From December to late January, the male floral buds turned brown and all of the leaves had abscised. The male cone cluster was pendulous and spike-like. (H) By mid-February, the microsporophyll was exposed outside the bracts, and male cones shed pollen from the base to the tip of an individual branch. Bars = 2 cm.