BOTN 201 - Department of Biology Herbarium - TAMU
Images of the Navasota Flora - 30 July 1995
initial expansion of mid-summer toward a more 'acorn-like' condition as both the gynoecium (nut) and involucre ('acorn cap') develop.
Pistillate flowers of Ilex vomitoria (Aquifoliaceae), our most common understory shrub, have moved from anthesis in May to fruit set, as have those of its less common relative, Vaccinium arboreum (Ericaceae) goes through the 'ripening' process at this point in time and, as a result, provides a harvest for this Fall's southward migration.
Associated with the two Ilex species in our Post Oak woodlands are two species of the small grass (Poaceae or Gramineae) genus (6 species of eastern North America) Chasmanthium. This one, C. sessiliflorum is the most common in that its ecological amplitude extends through shaded woodland sites of both upland (Post Oak) and lowland (Water Oak) habitats. Its species epithet relates to
C. latifolium, a distinctive local grass that is restricted low, wet woodlands and stream margins.
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Last updated by HDW on 1 August 1995