单词	pseudobulb
释义	pseudobulb /ˈs(j)uːdəʊˌbʌlb / noun Botany A bulb-like enlargement of the stem in many orchids, especially tropical and epiphytic ones.Microstylis and its relatives, although often growing on the ground, have pseudobulbs (probably indicating epiphytic origins) and thus are really semi-terrestrial.... All the species of Xylobium studied have plicate leaves and pseudobulbs round in section, multiflowered inflorescences with rewardless flowers, and Type 1 pollinaria with arcuate viscidia. The plants branch sympodially, producing large, flattened, bifoliate pseudobulbs and lateral, solitary flowers on long pedicels, numbering one to six per pseudobulb.
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