American Journal of Botany, Volumen 63

acid acropetally Amer anther anthocyanin apex apical meristem arrows auxin B-chromosomes basal base Botany bract branches bundles canal carpel cells chromosome clusters conidium Cordylanthus cortex cortical culture DFH DFH Didymium differentiation distal elongation epidermal F₁ FD FD ferns flavonoid floral florescences formation gametophytes genera genus germination growth gynostemia plus ovaries hypocotyl increased indicate inflorescence initiation internodes iridis isolates labella labellum lateral layer leaf traces leaves lobes material mature medium meiosis meristematic microtubules mitotic morphology NAAKC node nodule observed occur Opuntioideae organization outer pattern phialide phloem phyllotaxy plants pollen primary primordia procambial protoplasts region secondary seed proteins seedlings sepal shoot showing sieve elements similar sorocarp species specimens spores sporophytes stage stained stamens stem stigma strands structural wax surface Table taxa thickening tion Transection vascular vasculature vesicles wall whole flowers xylem