Table 1. Distribution of the nodulating taxa, identity and numbers of isolates according to site of origin and legume host^a .

Sampling sitesb	Caesalpinioideae		Mimosoideae		Papilionoideae
	Cm	So	Cu	Ng	Ic	Ih	Il	Is
South Alligator (13°29′S/132°22′E) rainforest, loam flat, undisturbed			P(1)
Spring Peak Range (12°58′S/132°27′E) woodland, rocky hill, undisturbed	B(2) W(3)
Coronation Hill (13°35′S/132°36′E) woodland, schist hill, disturbed		P(1) Z(1)			B(3) AA(1)	B(4) X(1) AA(2)
Fisher airstrip (13°33′S/132°38′E) woodland, loam flat, disturbed				B(4)			B(7)
Alligator River between Parks H.Q. & Jabiru Drive (12°42′S/132°38′E) woodland, loam flat, undisturbed					B(3)			B(1)
Jabiru Drive opposite Crocodile Hotel (12° 40′ S/132° 49′ E) woodland, rocky loam, disturbed							B(4)
Jabiluka (12°29′S/132°53′E) woodland, sandy hill, undisturbed	V(1)
Mount Cahill base (12°52′S/134°42′E) woodland, sandy loam slope, undisturbed							Y(1) AL(1)
Mount Cahill top (near look-out) (12°52′S/134°42′E) woodland, rocky hill, disturbed	B(1)						B(2) Z(1)

^aCm, Chamaecrista mimosoides; So, Senna obtusifolia; Cu, Cathormion umbellatum; Ng, Neptunia gracilis; Ic, Indigofera colutea; Ih, Indigofera hirsuta; Il, Indigofera linifolia; Is, Indigofera saxicola.

^bLatitude/longitude, vegetation, soil and disturbance conditions are given for each site.