a. 管的, 有管的, 管形的, 有管状小花的

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.

2. Containing, or consisting of, small tubes; specifically
(Bot.), composed wholly of tubulous florets; as, a
tubulous compound flower.

{Tubulous boiler}, a steam boiler composed chiefly of tubes
containing water and surrounded by flame and hot gases; --
sometimes distinguished from tubular boiler.