Table 1.

List of 12 root samples used in the study. The host localities, approximate age of plant hosts in their present habitat at the time of sampling and other important remarks were indicated.

Host species	Coralloid root	Locality	Age of the host plant	Years planted in the botanical garden	Additional remarks
Cycas debaoensis	CD1	BGa	15-20 years	15 years	Located distantly (–300 m) from C. fairylakea, in slightly higher elevation, shady and hidden to visitors, planted near each other
	CD2	BG	15-20 years	15 years
	CD3	BG	15-20 years	15 years
Cycas fairylakea	CF1	NH-BGb	15-20 years	1 year	Located at a lower elevation, expose to sunlight, near the entrance of Cycad Germplasm Conservation Center
	CF2	NHc	15-20 years	–
	CF3	NH-BG	15-20 years	1 year	Located near CF1
Host species	Normal root	Locality			Additional remarks
Cycas debaoensis	ND1	BG	15-20 years	15 years	On-trunk roots
	ND2	BG	15-20 years	15 years	Below-ground roots
	ND3	BG	15-20 years	15 years	Below-ground roots
Cycas fairylakea	NF1	NH-BG	15-20 years	2 years	On-trunk roots
	NF2	NH-BG	15-20 years	2 years	Below-ground roots
	NF3	NH	15-20 years	–	Below-ground roots

^aBG: Botanical Garden in Fairy Lake (FLBG), Shenzhen.

^bNH-BG: Transplanted adult individuals from natural habitat to botanical garden, the age range of the hosts and the years of existence in the botanical garden after transplantation were given.

^cNH: Natural habitat (wild population) in Shenzhen/North Guangdong.