Platanaceae

• Authority

  Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

• Family

  Platanaceae

• Scientific Name

  Platanaceae

• Description

  Family Description - Plants anemophilous, monoecious, the numerous, tiny fls in unisexual, spherical heads; sep 3–4(–7), distinct or basally connate; staminate fls with tiny pet alternating with the sep, and with a single set of stamens opposite the sep; filaments very short; anthers elongate, the connective prolonged into a peltate appendage; pistillate fls generally without pet, often with small staminodia, and with (3–)5–8(–9) distinct carpels commonly in 2–3 whorls; stigma decurrent along the recurved, linear style and encroaching on the slender ovary; ovule solitary, pendulous, ± orthotropous; fr a spherical head of linear achenes, each achene subtended by many long hairs; seeds with slender, dicotyledonous embryo and scanty endosperm; trees with alternate, stipulate, mostly palmately veined lvs; winter buds at first concealed by the hollow base of the petiole. 1/6–7, most spp. N. Amer., but 2 Asian.

• Common Names

  The plane-tree family