The Collaborative International Dictionary of English v.0.48:

Tubulose \Tu"bu*lose`\, Tubulous \Tu"bu*lous\, a. [Cf. F.
   tubuleux. See Tubule.]
   1. Resembling, or in the form of, a tube; longitudinally
      hollow; specifically (Bot.), having a hollow cylindrical
      corolla, often expanded or toothed at the border; as, a
      tubulose flower.
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   2. Containing, or consisting of, small tubes; specifically
      (Bot.), composed wholly of tubulous florets; as, a
      tubulous compound flower.
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   Tubulous boiler, a steam boiler composed chiefly of tubes
      containing water and surrounded by flame and hot gases; --
      sometimes distinguished from tubular boiler.
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