Triploid tissue in angiosperms is
Endosperm
Tapetum
Endothecium
Nucellus
Nucellus is diploid. Endothecium and tapetum may be haploid or diploid.
= Following components are haploid, diploid or triploid (a) Oosphere (b) Microspore (c) Synergids (d) Antipodals (e) Oospore (f) nucellus (g) Placenta (h) Chalaza (i) Endosperm (j) Tapetum