What's the difference between acaulescent and stemless?

Acaulescent

Definition:

(a.) Having no stem or caulis, or only a very short one concealed in the ground.

Example Sentences:

Definition:

Example Sentences:

(1) Although the short stem also tended to prevent contralateral lift-off, no significant difference was shown when compared to the stemless group.
(2) The two highest doses caused a delay in the initiation of rooting and especially of shooting; they also caused formation of rosette-like, stemless shoots without apical meristems.
(3) The three groups consisted of a stemless group, a 7.5 cm (short) central stem group, and a 15 cm (long) central stem group.
(4) For axial tests, the long stem minimized subsidence and lift-off (P < .05) when compared to the stemless group.