Cassiae closely allied to the aphyllous species; they have only one pair of foliola which are caducous, and whose persistent footstalk is more or less vertically compressed.    From Wordnik.com.  [Expedition into Central Australia] Reference

Nor are there any extensive families peculiar to these regions; the only characteristic tribes being that small section of aphyllous, or nearly aphyllous Cassiae, which I have particularly adverted to in my account of some of the species belonging to Captain Sturt's collection; and several genera of Myoporinae, particularly Eremophila and Stenochilus.    From Wordnik.com.  [Expedition into Central Australia] Reference

Absence of leaves. aphyllous, adj. apical adj. - at the summit or tip; Phonetics, pertaining to a consonant formed with help of tip of tongue. apicad, adv. towards the summit. adj. free from spherical aberration. aplanatism, n.    From Wordnik.com.  [xml's Blinklist.com] Reference