High-T$_c$ superconductivity does not originate in cuprate-planes.

CuO$_2$ planes are not needed for high-T$_c$ superconductivity, as demonstrated by Sr$_2$YRuO$_6$ and Ba$_2$YRuO$_6$, weakly doped on Ru sites with Cu, with onset T$_c$'s of 49K and 93K, but no cuprate-planes. Gd$_{2-z}$Ce$_z$Sr$_2$Cu$_2$RuO$_{10}$ and GdSr$_2$Cu$_2$RuO$_8$ do not superconduct in their cuprate- planes, which are magnetic, but in their SrO layers (with onset T$_c\approx$45K). High-temperature superconductivity resides in SrO, BaO, or interstitial oxygen regions, not in cuprate-planes. In YBa$_2$Cu$_3$O$_7$, Harshman {\it et al.} [1], using muon spectroscopy, found $s$-wave character, not $d$-wave character (to better than one percent) which measures the {\it superconducting} layers. This contradicts scanning tunneling microscopy and photoemission, which claim $d$-wave behavior after measuring {\it near-surface} layers (which often do not superconduct). High-temperature superconductivity originates in the BaO, SrO, or interstitial oxygen regions, not in the cuprate planes. [1] D. R. Harshman, {\it et al.}, Phys. Rev. {\bf B 69,} 174505 (2004).